[go: up one dir, main page]

EP4506105A1 - Segment avec première et deuxième particules de diamant orientées et insert d'outil équipé des segments - Google Patents

Segment avec première et deuxième particules de diamant orientées et insert d'outil équipé des segments Download PDF

Info

Publication number
EP4506105A1
EP4506105A1 EP23191178.5A EP23191178A EP4506105A1 EP 4506105 A1 EP4506105 A1 EP 4506105A1 EP 23191178 A EP23191178 A EP 23191178A EP 4506105 A1 EP4506105 A1 EP 4506105A1
Authority
EP
European Patent Office
Prior art keywords
segment
diamond particles
faces
particles
group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23191178.5A
Other languages
German (de)
English (en)
Inventor
Stuart Nailer
Marcel Sonderegger
Jens Stracke
Joana Goncalves Fernandes
Thorsten Klein
Michael Myers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP23191178.5A priority Critical patent/EP4506105A1/fr
Priority to PCT/EP2024/072472 priority patent/WO2025036815A1/fr
Publication of EP4506105A1 publication Critical patent/EP4506105A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/14—Zonally-graded wheels; Composite wheels comprising different abrasives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12—Saw-blades or saw-discs specially adapted for working stone
    • B28D1/121—Circular saw blades

Definitions

  • the present invention relates to a segment according to the definition of claim 1 and to a tool insert according to the definition of claim 38.
  • Segments for tool inserts known from prior art are composed of at least one bond material that is sintered, pressed and/or infiltrated, and at least one plurality of diamond particles arranged according to one or more predetermined particle pattern.
  • the segments can be fabricated via powder metallurgy, in which a green body is built up layer by layer and then the green body is further processed by sintering, by pressing and/or by infiltrating to form the final segment.
  • Diamond particles the hardest abrasive material currently known, are widely used on saws, drills, cut-off grinders, and other abrasive power tools to cut, form, and polish workpieces such as stone, concrete, asphalt, etc.
  • abrasive power tools to cut, form, and polish workpieces such as stone, concrete, asphalt, etc.
  • orientation of each diamond remains random.
  • the physical properties of diamonds are highly directional, due to the different spacings between the layers of atoms ("interatomic spacings") in different directions on different crystal faces. Consequently, the mechanical properties of diamond, such as hardness and abrasion resistance, vary according to which crystal plane is being acted upon and in which direction. Furthermore, diamond particles will cut with different face and edge geometries according to their orientation with respect to the cutting direction.
  • diamond particles are currently not optimized for the mechanical properties and cutting geometries that may maximize efficiency for cutting, drilling, grinding, polishing, etc.
  • the present invention was created to resolve the problems with the prior art as described above, and the object of the present invention is to provide a segment and a tool insert equipped with the segments, which allow to improve the cutting behavior and/or wear resistance.
  • the object is achieved according to an aspect of the invention by a segment characterized in that in that the segment has at least one direction of orientation and for at least 50 % of the first plurality of first diamond particles, the at least one first axis of rotational symmetry is oriented in at least one defined first angle with an accuracy of ⁇ 15° with respect to the at least one direction of orientation.
  • the segment according to the invention comprises a bond material that is at least one of sintered, pressed, and infiltrated, a first plurality of first diamond particles being arranged according to a first predetermined particle pattern and bonded in the bond material, and a second plurality of second diamond particles. At least 50 % of the first plurality of first diamond particles are not only arranged according to the first particle pattern, but those diamond particles are additionally oriented in a defined projection with respect to the at least one direction of orientation of the segment.
  • the crystal structure and morphology of diamond gives diamond particles different mechanical properties such as hardness and wear resistance, and different cutting geometries depending on which crystal face is being acted on and in which direction.
  • Diamond particles may be oriented in defined projections (such as cubic, octahedral, or dodecahedral projections) in order to take advantage of the particular mechanical properties of those crystal planes. Diamond particles oriented in given projections may then be given preferred angular orientations to achieve the desired mechanical properties and cutting geometries.
  • the orientation of the least 50 % of the first plurality of first diamond particles is defined by means of the outer geometries of the first diamond particles.
  • the first diamond particles have first outer geometries which are predominantly composed of cubic faces including square and/or octagonal faces and/or of octahedral faces including triangular and/or hexagonal faces, wherein the first outer geometries have at least one first axis of rotational symmetry. Due to imperfections which occur during growing of the diamond particles, the first outer geometries of the first diamond particles may differ from their perfect rotational symmetry. Nevertheless, for most first diamond particles of the first plurality of diamond particles the first outer geometry and the corresponding axes of rotational symmetry can be identified.
  • the segment may be fabricated via powder metallurgy, in which a green body is built up layer by layer and then the green body is further processed by sintering, by pressing and/or by infiltrating to form the final segment; known methods for further processing are for example hot-pressing, free-form sintering, free-form sintering with infiltrating, hot isostatic pressing, and subsequent heat treatments.
  • the first particle pattern is for example defined by a setting plate characterized by a defined arrangement of apertures to receive the first diamond particles. If the same type of setting plate is used, the particle pattern are called to be the same, even though the first diamond particles may be arranged with an offset between particle layers.
  • the least 50 % of the first plurality of first diamond particles are oriented in the at least one defined angle with an accuracy of ⁇ 10° with respect to the at least one direction of orientation.
  • the at least one direction of orientation is arranged parallel to a height direction of the segment, to a width direction of the segment, to a length direction of the segment and/or to any other defined direction of the segment.
  • the preferred direction of orientation may depend on the type of segment and the application of the tool insert equipped with the segments.
  • the first plurality of first diamond particles includes a first group of first diamond particles having first outer geometries being predominantly composed of cubic faces, and/or a second group of first diamond particles having first outer geometries being predominantly composed of octahedral faces, and/or a third group of first diamond particles having first outer geometries being predominantly composed of cubic faces and octahedral faces.
  • the first plurality of first diamond particles which are arranged according to the at least one predetermined first particle pattern originate from a first distribution of diamond particles; the distribution includes a first group of first diamond particles having first outer geometries being predominantly composed of cubic faces, and/or a second group of first diamond particles having first outer geometries being predominantly composed of octahedral faces, and/or a third group of first diamond particles having first outer geometries being predominantly composed of cubic faces and octahedral faces.
  • the first group of first diamond particles includes cubic particles having first outer geometries being predominantly composed of square faces
  • the second group of first diamond particles includes octahedral particles having first outer geometries being predominantly composed of triangular faces
  • the third group of first diamond particles includes first cuboctahedral particles having first outer geometries being predominantly composed of square faces and triangular faces, and/or second cuboctahedral particles having first outer geometries being predominantly composed of octagonal faces and triangular faces, and/or third cuboctahedral particles having first outer geometries being predominantly composed of square faces and hexagonal faces.
  • the first group, second group, and third group include all together five types of diamond particles which differ in their perfect outer geometries.
  • the crystal structure and morphology of diamond gives diamond particles different mechanical properties such as hardness and wear resistance, and different cutting geometries depending on which crystal face is being acted on and in which direction.
  • First diamond particles may be oriented in cubic, octahedral, or dodecahedral projections in order to take advantage of the particular mechanical properties of those crystal planes. First diamond particles oriented in given projections may then be given preferred angular orientations to achieve the desired mechanical properties and cutting geometries.
  • the at least one first axis of rotational symmetry includes at least one first symmetry axis being substantially perpendicular to a cubic face and running substantially through the center point of that cubic face and/or at least one second symmetry axis running substantially through two diagonally opposing corners of the first outer geometry and/or at least one third symmetry axis being substantially perpendicular to an edge of the first outer geometry, running substantially through the center point of that edge and substantially crossing the diagonally opposing edge of the first outer geometry.
  • the perfect outer geometries are predominantly formed as cubes, and the at least one axis of rotational symmetry includes several symmetry axes which are called first symmetry axes (opposing cubic faces), second symmetry axes (diagonally opposing corners), and third symmetry axes (diagonally opposing edges).
  • first symmetry axes opposite cubic faces
  • second symmetry axes diagonally opposing corners
  • third symmetry axes diagonally opposing edges
  • the at least one first axis of rotational symmetry includes at least one first symmetry axis being substantially perpendicular to an octahedral face and running substantially through the center point of that octahedral face and/or at least one second symmetry axis running substantially through two diagonally opposing corners of the first outer geometry, and/or at least one third symmetry axis being substantially perpendicular to an edge of the first outer geometry, running substantially through the center point of that edge and substantially crossing the diagonally opposing edge of the first outer geometry.
  • the perfect outer geometries are predominantly formed by triangular faces, and the at least one axis of rotational symmetry includes several symmetry axes which are called first symmetry axes (opposing octahedral faces), second symmetry axes (diagonally opposing corners), and third symmetry axes (diagonally opposing edges).
  • first symmetry axes opposite octahedral faces
  • second symmetry axes diagonally opposing corners
  • third symmetry axes diagonally opposing edges
  • the at least one first axis of rotational symmetry includes at least one first symmetry axis being substantially perpendicular to a cubic face and running substantially through the center point of that cubic face and at least one further first symmetry axis being substantially perpendicular to an octahedral face and running substantially through the center point of that octahedral face and/or at least one second symmetry axis running substantially through two diagonally opposing corners of the first outer geometry and/or at least one third symmetry axis being substantially perpendicular to an edge of the first outer geometry, running substantially through the center point of that edge and substantially crossing the diagonally opposing edge of the first outer geometry.
  • the perfect outer geometries are predominantly formed by cubic faces and octahedral faces, and the at least one axis of rotational symmetry includes several symmetry axes which are called first symmetry axes (opposing cubic faces or opposing octahedral faces), and/or second symmetry axes (diagonally opposing corners), and/or third symmetry axes (diagonally opposing edges).
  • the at least one third symmetry axis is substantially perpendicular to an edge defined by adjacent octagonal faces, and for the third cuboctahedral particles, the at least one third symmetry axis is substantially perpendicular to an edge defined by adjacent hexagonal faces.
  • the at least 50 % of the first plurality of first diamond particles are oriented in at least one first defined projection with respect to the at least one direction of orientation of the segment.
  • the cutting behavior and/or the wear resistance of the segment can be adapted to specific requirements.
  • the at least one first defined projection is selected from a cubic projection, an octahedral projection, and a dodecahedral projection.
  • the cutting behavior and/or the wear resistance can be adapted to specific requirements.
  • the first diamond particles are at least partially oriented in the first defined projection
  • the second diamond particles may be randomly oriented or at least partially oriented in a second defined projection with respect to the at least one direction of orientation.
  • first diamond particles different mechanical properties such as hardness and wear resistance, and different cutting geometries depending on which crystal face is being acted on and in which direction.
  • First diamond particles may be oriented in cubic, octahedral, or dodecahedral projections in order to take advantage of the particular mechanical properties of those crystal planes.
  • First diamond particles oriented in given projections may then be given preferred angular orientations to achieve the desired mechanical properties and cutting geometries.
  • a first symmetry axis being substantially perpendicular to a cubic face and running substantially through the center point of that cubic face is oriented in the at least one defined first angle with respect to the at least one direction of orientation of the segment
  • a second symmetry axis is oriented in the at least one defined first angle with respect to the at least one direction of orientation of the segment.
  • a second symmetry axis is oriented in the at least one defined first angle with respect to the at least one direction of orientation of the segment, and for first diamond particles of the second group and third group, a first symmetry axis being substantially perpendicular to an octahedral face and running substantially through the center point of that octahedral face is oriented in the at least one defined first angle with respect to the at least one direction of orientation of the segment.
  • a third symmetry axis is oriented in the at least one defined first angle with respect to the at least one direction of orientation of the segment
  • a third symmetry axis is oriented in the at least one defined first angle with respect to the at least one direction of orientation of the segment
  • a second symmetry axis or a third symmetry axis is oriented in the at least one defined first angle with respect to the at least one direction of orientation of the segment.
  • a second symmetry axis is oriented in the at least one defined first angle with respect to the at least one direction of orientation of the segment
  • a third symmetry axis is oriented in the at least one defined first angle with respect to the at least one direction of orientation of the segment
  • a third symmetry axis is oriented in the at least one defined first angle with respect to the at least one direction of orientation of the segment.
  • the segment comprises one first section and two second sections, the first section being arranged between the second sections in any defined direction of the segment.
  • a sandwich structure can be created which allows to adapt the cutting behavior and/or the wear resistance to specific requirements.
  • the predetermined particle pattern and/or the defined projection of the diamond particles in the predetermined particle pattern and/or the angular orientation of the diamond particles in the defined projection can be varied.
  • the segment comprises at least two first sections and/or at least two second sections, the first and second sections being arranged according to a regular pattern in the segment.
  • the cutting behavior and/or the wear resistance of the segment can be adapted to specific requirements of the different sections.
  • the first section can have at least one first predetermined particle pattern and/or at least one first defined projection for the first plurality of first diamond particles, and/or at least one first angular orientation of the first diamond particles in the first defined projection
  • the second section can have at least one second predetermined particle pattern and/or at least one second defined projection for the second plurality of second diamond particles and/or at least one second angular orientation of the second diamond particles in the second defined projection.
  • the second plurality of second diamond particles is randomly arranged in the second bond material.
  • diamond particles may be easily incorporated into sections of the segment where the optimal mechanical properties and cutting geometries facilitated by arranged diamond are not required.
  • the second plurality of second diamond particles is arranged according to at least one second predetermined particle pattern.
  • the cutting behavior and/or the wear resistance of the second sections can be adapted to the specific requirements.
  • the cutting behavior and/or the wear resistance can be adapted by means of a predetermined particle pattern and/or a defined projection of the diamond particles in predetermined particle patterns and/or an angular orientation of the diamond particles in the defined projections.
  • the second plurality of second diamond particles is randomly oriented.
  • diamond particles may be easily incorporated into sections of the segment where the optimal mechanical properties and cutting geometries facilitated by oriented diamond are not required.
  • the second plurality of second diamond particles have second outer geometries being predominantly composed of cubic faces including square and/or octagonal faces and/or of octahedral faces including triangular and/or hexagonal faces, wherein the second outer geometries have at least one second axis of rotational symmetry.
  • the at least one second axis of rotational symmetry is oriented in at least one defined second angle with an accuracy of ⁇ 15° with respect to the at least one direction of orientation of the segment.
  • the second plurality of second diamond particles includes a first group of second diamond particles having second outer geometries being predominantly composed of cubic faces, and/or a second group of second diamond particles having second outer geometries being predominantly composed of octahedral faces, and/or a third group of second diamond particles having second outer geometries being predominantly composed of cubic faces and octahedral faces.
  • the first group of second diamond particles includes cubic particles having second outer geometries being predominantly composed of square faces, and/or the second group of second diamond particles includes octahedral particles having second outer geometries being predominantly composed of triangular faces, and/or the third group of second diamond particles includes first cuboctahedral particles having second outer geometries being predominantly composed of square faces and triangular faces, and/or second cuboctahedral particles having second outer geometries being predominantly composed of octagonal faces and triangular faces, and/or third cuboctahedral particles having second outer geometries being predominantly composed of square faces and hexagonal faces.
  • the at least one second axis of rotational symmetry includes at least one first symmetry axis being substantially perpendicular to a cubic face and running substantially through the center point of that cubic face and/or at least one second symmetry axis running substantially through two diagonally opposing corners of the second outer geometry and/or at least one third symmetry axis being substantially perpendicular to an edge of the second outer geometry, running substantially through the center point of that edge and substantially crossing the diagonally opposing edge of the second outer geometry.
  • the at least one second axis of rotational symmetry includes at least one first symmetry axis being substantially perpendicular to an octahedral face and running substantially through the center point of that octahedral face and/or at least one second symmetry axis running substantially through two diagonally opposing corners of the second outer geometry, and/or at least one third symmetry axis being substantially perpendicular to an edge of the second outer geometry, running substantially through the center point of that edge and substantially crossing the diagonally opposing edge of the second outer geometry.
  • the at least one second axis of rotational symmetry includes at least one first symmetry axis being substantially perpendicular to a cubic face and running substantially through the center point of that cubic face and at least one further first symmetry axis being substantially perpendicular to an octahedral face and running substantially through the center point of that octahedral face and/or at least one second symmetry axis running substantially through two diagonally opposing corners of the second outer geometry and/or at least one third symmetry axis being substantially perpendicular to an edge of the second outer geometry, running substantially through the center point of that edge and substantially crossing the diagonally opposing edge of the second outer geometry.
  • the at least one third symmetry axis is substantially perpendicular to an edge defined by adjacent octagonal faces, and for the third cuboctahedral particles, the at least one third symmetry axis is substantially perpendicular to an edge defined by adjacent hexagonal faces.
  • the at least 50 % of the second plurality of second diamond particles are oriented in at least one second defined projection with an accuracy of ⁇ 15° with respect to the at least one direction of orientation of the segment.
  • the cutting behavior and/or the wear resistance of the segment can be adapted to specific requirements.
  • the at least one second defined projection is selected from a cubic projection, an octahedral projection, and a dodecahedral projection.
  • the cutting behavior and/or the wear resistance of the second section(s) can be adapted to specific requirements.
  • the first and second defined projections are both selected from a cubic projection, or both selected from an octahedral projection, or both selected from a dodecahedral projection.
  • the first defined projection and the second defined projection differ in an angular orientation of the diamond particles with respect to the at least one direction of orientation.
  • the cutting behavior and/or the wear resistance of the different sections can be adapted to specific requirements.
  • the angular orientation of the diamond particles in the first and second defined projections differ by half of the rotational symmetry angle of the corresponding symmetry axis that is oriented to the at least one direction of orientation.
  • the diamond particles may be oriented in edge leading orientations or in tip leading orientations.
  • the tip leading orientation may lead to ploughing effects with increased normal forces and decreased cutting forces, and the edge leading orientation may result in thicker chips and higher cutting forces indicating an enhanced material removal rate.
  • the directional mechanical properties of diamond may also be exploited to optimize cutting behavior.
  • the first plurality of first diamond particles is selected from a first distribution of diamond particles and the second plurality of second diamond particles is selected from a second distribution of diamond particles, the first distribution and second distribution being characterized by features selected from a particle size and/or a crystal perfection and/or a toughness and/or a diamond growth morphology.
  • the features that characterized a distribution of diamond particles are defined by a range rather than a fixed value.
  • the first distribution of diamond particles and the second distribution of diamond particles differ in at least one of their features particle size, crystal perfection, toughness and diamond growth morphology.
  • first and second diamond particles that differ in at least one of their features the cutting behavior and/or the wear resistance of the segment can be adapted to specific requirements of different sections.
  • the first bond material and the second bond material are characterized by at least one feature selected from a chemical composition, a powder morphology, and a degree of alloying.
  • the first and second bond materials can be different in one or more of their features.
  • the first bond material and the second bond material differ in at least one of their features chemical composition, powder morphology, and degree of alloying.
  • the cutting behavior and/or the wear resistance of different sections of the segment can be adapted to specific requirements.
  • At least 80 % of the first plurality of first diamond particles that are arranged according to the at least one first predetermined particle pattern are oriented in the at least one defined first angle with an accuracy of ⁇ 15° with respect to the at least one direction of orientation.
  • the least 80 % of the first plurality of first diamond particles are oriented in the at least one defined angle with an accuracy of ⁇ 10° with respect to the at least one direction of orientation.
  • a tool insert comprising a base body configured to connect the tool insert to a power tool, and including a connection surface, and two or more segments according to the invention, wherein the segments are connected to the connection surface.
  • a tool insert comprising two or more segments according to the invention has the advantage that the cutting behavior and/or the wear resistance of the tool insert can be adapted to the requirements by means of the segments.
  • the tool insert is configured as core bit, saw blade, cutting disk, or grinding cup wheel.
  • Tool inserts configured as core bit, saw blade, cutting disk, or grinding cup wheel for abrasive power tools can benefit from segments according to the invention.
  • the two or more segments include first segments and second segments that are different from the first segments.
  • the first and second segments may be arranged alternating in a circumferential direction of the connection surface or being arranged in any regular or unregular pattern on the connection surface.
  • the tool insert further comprises at least one additional segment connected to the connection surface.
  • the segments according to the invention and the additional segments may be arranged alternating in a circumferential direction of the connection surface or being arranged in any regular or unregular pattern on the connection surface.
  • diamond particles refer to particles of either natural or synthetic crystalline diamonds.
  • predetermined particle pattern refers to a non-random particle pattern of the diamond particles that is identified prior to construction of a tool insert, and which individually places or locates each diamond particle in a defined relationship with the other diamond particles, and with the configuration of the tool insert.
  • FIGS. 1A , B show a first exemplary version of a tool insert according to the present invention configured as core bit 10.
  • the core bit 10 comprises a base body formed as core barrel 11, a cutting section 12 including a plurality of segments, and a connection end 13.
  • the cutting section 12 includes a first number of first segments 14 and a second number of second segments 15 that can be different from the first segments 14.
  • the first segments 14 and second segments 15 can both be segments according to the present invention, or only the first segments 14 or the second segments 15 are segments according to the present invention.
  • first segments 14 and second segments 15 are arranged in an alternating manner.
  • first segments 14 and second segments 15 can be arranged in any regular or non-regular pattern at the connection surface 16 of the core barrel 11.
  • the core barrel 11 and the cutting section 12 are formed as one-piece and the first and second segments 14, 15 are fixed, e.g., by brazing, soldering, welding, or the like as well, to a connection surface 16 of the core barrel 11.
  • the core barrel 11 and the cutting section 12 may be formed as two pieces that can be connected via a removable connection.
  • the core barrel 11 and the connection end 13 are formed as two pieces that are connected via a threaded joint 17, wherein a female part of the threaded joint is connected to the core barrel 11 and a male part of the threaded joint is connected to the connection end 13.
  • the core barrel 11 and the connection end 13 may be formed as one-piece.
  • the first segments 14 and second segments 15 have a similar outer shape 18 that is shown in FIG. 1B .
  • the segments 14, 15 have a height between an upper face UF and a lower face LF in a height direction 21, a width between a first side face SF1 and a second side face SF2 in a width direction 22, and a length between a first end face EF1 and a second end face EF2 in a length direction 23.
  • the bond material and diamond particles used for the segments should also be different.
  • the bond material should be softer to let the new diamond particles be exposed more easily and participate in processing, and, when the workpiece to be processed is soft, the bond material should be harder to hold the diamond particles longer to extend the service life of the segments.
  • FIGS. 2A , B show a second exemplary version of a tool insert according to the present invention configured as diamond blade 30 that can be used with diamond wall saws, cut-off grinder, etc.
  • the diamond blade 30 comprises a base body formed as steel blade 31, a cutting section 32 including a plurality of segments, and a tool holder 33.
  • the cutting section 32 includes a first number of first segments 34, a second number of second segments 35, and a third number of third segments 36.
  • the first segments 34 and second segments 35 are both segments according to the present invention, and the third segments 36 are not segments according to the present invention.
  • the first segments 34, second segments 35, and third segments 36 are arranged in FIG. 2A in an alternating manner along a circumferential direction of the steel blade.
  • the first segments 34, second segments 35, and third segments 36 can be arranged and connected to the steel blade 31 in any regular or non-regular pattern.
  • the first segments 34, second segments 35, and third segments 36 have a similar outer shape 38 that is shown in FIG. 2B .
  • the segments have a height between an upper face UF and a lower face LF in a height direction 41, a width between a first side face SF1 and a second side face SF2 in a width direction 42, and a length between a first end face EF1 and a second end face EF2 in a length direction 43.
  • FIG. 3 shows a third exemplary version of a tool insert according to the present invention configured as grinding wheel 50.
  • the grinding wheel 50 comprises a base body formed as cup wheel 51, a cutting section 52 including a plurality of segments, and a tool holder 53.
  • the cutting section 52 includes a first number of segments 54 according to the present invention and a second number of additional segments 55 that differ from the present invention.
  • the segments 54 and additional segments 55 can be arranged in two circularly formed rows, e.g., the segments 54 in a first outer row and the additional segments 55 in a second inner row, or the segments 54 and additional segments 55 can be arranged in any regular or non-regular pattern.
  • the segments according to the present invention that are used for the tool inserts 10, 30, 50 are composed of a bond material that is at least one of sintered, pressed, and infiltrated, and of a plurality of diamond particles being arranged according to at least one predetermined particle pattern in the bond material.
  • the diamond particles that are used for the segments according to the present invention can be classified in a first group of diamond particles having outer geometries being predominantly composed of cubic faces, in a second group of diamond particles having outer geometries being predominantly composed of octahedral faces, and in a third group of diamond particles having outer geometries being predominantly composed of cubic faces and octahedral faces.
  • the term "cubic faces” summarizes square faces and octagonal faces
  • the term “octahedral faces” summarizes triangular faces, and hexagonal faces.
  • FIGS. 4A to E show five different types of diamond particles having outer geometries.
  • the diamond particles have outer geometries which are predominantly composed of cubic faces including square and/or octagonal faces and/or of octahedral faces including triangular and/or hexagonal faces, wherein the outer geometries have at least one axis of rotational symmetry.
  • the outer geometries of the diamond particles may differ from their perfect rotational symmetry. Nevertheless, for most diamond particles of the plurality of diamond particles the outer geometry and the corresponding axes of rotational symmetry can be identified.
  • the axes of rotational symmetry include several symmetry axes which are called first symmetry axes related to opposing faces, second symmetry axes related to diagonally opposing corners, and third symmetry axes related to diagonally opposing edges.
  • the different symmetry axes allow different orientations of the diamond particles with respect to the at least one direction of orientation of the segment.
  • FIG. 4A shows a diamond particle 60 of the first group of diamond particles having an outer geometry being predominantly composed of cubic faces, the diamond particle of FIG. 4A is called "cubic particle".
  • the outer geometry of the cubic particle 60 is composed of six square faces 61, which are arranged in three pairs of opposing square faces 61.
  • the cubic particle 60 has a plurality of axes of rotational symmetry including six first symmetry axes 63, four second symmetry axes 64, and six third symmetry axes 65.
  • the first symmetry axes 63 are defined to be substantially perpendicular to one of the square faces 61 and run substantially through the center point 66 of that face 61
  • the second symmetry axes 64 are defined to run substantially through two diagonally opposing corners 67A, 67B
  • the third symmetry axes 65 are defined to be substantially perpendicular to an edge 68A, run substantially through the center point 69 of that edge and cross substantially the diagonally opposing edge 68B.
  • the first symmetry axes 63 of two opposing square faces and the third symmetry axes 65 of two diagonally opposing edges are coaxially aligned. Due to imperfections of the outer geometry, which occur during growing of the cubic particles 60, the first symmetry axes of two opposing square faces and the third symmetry axes of two diagonally opposing edges may have a parallel offset or can be inclined to each other.
  • FIG. 4B shows a diamond particle 70 of the second group of diamond particles having outer geometries being predominantly composed of octahedral faces, the diamond particle of FIG. 4B is called "octahedral particle".
  • the outer geometry of the octahedral particle 70 is composed of eight triangular faces 72, which are arranged in four pairs of opposing triangular faces 72.
  • the octahedral particle 70 has a plurality of axes of rotational symmetry including first symmetry axes 73, second symmetry axes 74, and third symmetry axes 75.
  • the first symmetry axes 73 are defined to be substantially perpendicular to one of the triangular faces 72 and run substantially through the center point 76 of that face 72
  • the second symmetry axes 74 are defined to run substantially through two diagonally opposing corners 77A, 77B
  • the third symmetry axes 75 are defined to be substantially perpendicular to an edge 78A, run substantially through the center point 79 of that edge and cross substantially the diagonally opposing edge 78B.
  • the first symmetry axes 73 of two opposing triangular faces and the third symmetry axes 75 of two diagonally opposing edges are coaxially aligned. Due to imperfections of the outer geometry, which occur during growing of the octahedral particles 70, the first symmetry axes of two opposing triangular faces and the third symmetry axes of two diagonally opposing edges may have a parallel offset or can be inclined to each other.
  • FIGS. 4C to E show diamond particles of the third group of diamond particles having outer geometries being predominantly composed of cubic faces and octahedral faces.
  • the diamond particles differ in the type of the cubic faces and/or in the type of the octahedral faces.
  • FIG. 4C shows a diamond particle 80 of the third group of diamond particles having an outer geometry being predominantly composed of square faces 81 and triangular faces 82, the diamond particle 80 of FIG. 4C is called "first cuboctahedral particle".
  • the outer geometry of the first cuboctahedral particle 80 is composed of six square faces 81, which are arranged in three pairs of opposing square faces, and of eight triangular faces 82, which are arranged in four pairs of two opposing triangular faces.
  • the first cuboctahedral particle 80 has a plurality of axes of rotational symmetry including first symmetry axes 83A, 83B and second symmetry axes 84. Since symmetry axes that are related to diagonally opposing edges do not align with major diamond crystal directions, those axes are not used for the orientation of first cuboctahedral particles 80.
  • the first symmetry axes 83A are defined to be substantially perpendicular to one of the square faces 81 and run substantially through the center point 86A of that face 81
  • the first symmetry axes 83B are defined to be substantially perpendicular to one of the triangular faces 82 and run substantially through the center point 86B of that face 82
  • the second symmetry axes 84 are defined to run substantially through two diagonally opposing corners 87A, 87B.
  • first symmetry axes of two opposing square or triangular faces are coaxially aligned. Due to imperfections of the outer geometry, which occur during growing of the first cuboctahedral particles, the first symmetry axes of two opposing square or triangular faces may have a parallel offset or can be inclined to each other.
  • FIG. 4D shows a diamond particle 90 of the third group of diamond particles having an outer geometry being predominantly composed of octagonal faces 91 and triangular faces 92, the diamond particle of FIG. 4D is called "second cuboctahedral particle".
  • the outer geometry of the second cuboctahedral particle 90 is composed of six octagonal faces 91, which are arranged in three pairs of opposing octagonal faces 91, and of eight triangular faces 92, which are arranged in four pairs of two opposing triangular faces 92.
  • the second cuboctahedral particle 90 has a plurality of axes of rotational symmetry including first symmetry axes 93A, 93B and third symmetry axes 95. Since symmetry axes that are related to diagonally opposing corners do not align with major diamond crystal directions, those axes are not used for the orientation of second cuboctahedral particles 90.
  • the first symmetry axes 93A are defined to be substantially perpendicular to one of the octagonal faces 91 and run substantially through the center point 96A of that face 91
  • the first symmetry axes 93B are defined to be substantially perpendicular to one of the triangular faces 92 and run substantially through the center point 96B of that face 92
  • the third symmetry axes 95 are defined to be substantially perpendicular to an edge 98A, run substantially through the center point 99 of that edge and cross substantially the diagonally opposing edge 98B.
  • the first symmetry axes of two opposing octagonal or triangular faces and the third symmetry axes of two diagonally opposing edges are coaxially aligned. Due to imperfections of the outer geometry, which occur during growing of the second cuboctahedral particles, the first symmetry axes of two opposing octagonal or triangular faces and the third symmetry axes of two diagonally opposing edges may have a parallel offset or can be inclined to each other.
  • FIG. 4E shows a diamond particle 100 of the third group of diamond particles having an outer geometry being predominantly composed of square faces 101 and hexagonal faces 102, the diamond particle of FIG. 4E is called "third cuboctahedral particle".
  • the outer geometry of the third cuboctahedral particle is composed of six square faces, which are arranged in three pairs of opposing square faces, and of eight hexagonal faces, which are arranged in four pairs of two opposing hexagonal faces.
  • the third cuboctahedral particle 100 has a plurality of axes of rotational symmetry including first symmetry axes 103A, 103B and third symmetry axes 105. Since symmetry axes that are related to diagonally opposing corners do not align with major diamond crystal directions, those axes are not used for the orientation of third cuboctahedral particles 100.
  • the first symmetry axes 103A are defined to be substantially perpendicular to one of the square faces 101 and run substantially through the center point 106A of that face 101
  • the first symmetry axes 103B are defined to be substantially perpendicular to one of the hexagonal faces 102 and run substantially through the center point 106B of that face 102
  • the third symmetry axes 105 are defined to be substantially perpendicular to an edge 108A, run substantially through the center point 109 of that edge and cross substantially the diagonally opposing edge 108B.
  • the first symmetry axes of two opposing triangular or hexagonal faces and the third symmetry axes of two diagonally opposing edges are coaxially aligned. Due to imperfections of the outer geometry, which occur during growing of the third cuboctahedral particles, the first symmetry axes of two opposing triangular or hexagonal faces and the third symmetry axes of two diagonally opposing edges may have a parallel offset or can be inclined to each other.
  • FIGS. 5A , B show the diamond particles 60, 70, 80, 90, 100 of FIGS. 4A to E in a cubic projection in a first angular orientation ( FIG. 5A ) and a second angular orientation ( FIG. 5B ).
  • the cubic projection of the diamond particles is defined with respect to a direction of orientation of the segment; in the exemplary version shown in FIGS. 5A , B, the direction of orientation is oriented perpendicular to the plane of projection.
  • a first symmetry axis 63, 83A, 93A, 103A that is substantially perpendicular to a cubic face 61, 81, 91, 101 and runs substantially through the center point 66, 86, 96, 106 of that cubic face 61, 81, 91, 101 is oriented to the direction of orientation of the segment
  • a second symmetry axis 74 is oriented to the direction of orientation of the segment.
  • FIG. 5A shows the diamond particles 60, 70, 80, 90, 100 of FIGS. 4A to E in a first angular orientation, which is defined as 0°, and FIG. 5B in a second angular orientation, which is defined as 45°.
  • the first and second angular orientation differ by a rotational angle of 45° about that symmetry axis of the diamond particles that is aligned to the direction of orientation.
  • FIGS. 6A , B show the diamond particles 60, 70, 80, 90, 100 of FIGS. 4A to E in an octahedral projection in a first angular orientation ( FIG. 6A ) and a second angular orientation ( FIG. 6B ).
  • a second symmetry axis 64 is oriented to the direction of orientation of the segment
  • a first symmetry axis 73, 83B, 93B, 103B that is substantially perpendicular to an octahedral face 71, 81, 91, 101 and runs substantially through the center point of that octahedral face is oriented to the direction of orientation of the segment.
  • FIG. 6A shows the diamond particles 60, 70, 80, 90, 100 of FIGS. 4A to E in a first angular orientation, which is defined as 0°, and FIG. 6B in a second angular orientation, which is defined as 60°.
  • the first and second angular orientation differ by a rotational angle of 60° about that symmetry axis of the diamond particles that is aligned to the direction of orientation.
  • FIGS. 7A , B show the diamond particles 60, 70, 80, 90, 100 of FIGS. 4A to E in an octahedral projection in a first angular orientation ( FIG. 7A ) and a second angular orientation ( FIG. 7B ).
  • a third symmetry axis 65 is oriented to the direction of orientation of the segment
  • a third symmetry axis 75 is oriented to the direction of orientation of the segment
  • a second symmetry axis or a third symmetry axis is oriented to the direction of orientation of the segment.
  • FIG. 7A shows the diamond particles 60, 70, 80, 90, 100 of FIGS. 4A to E in a first angular orientation, which is defined as 0°, and FIG. 7B in a second angular orientation, which is defined as 90°.
  • the first and second angular orientation differ by a rotational angle of 90° about that symmetry axis of the diamond particles that is aligned to the direction of orientation.
  • FIGS. 8A , B illustrate the orientation of the symmetry axis of a diamond particle to a direction of orientation 111 of the segment.
  • FIG. 8A shows a first cuboctahedral particle 80 with its first symmetry axis 83B and
  • FIG. 8B shows an octahedral particle 70 with its second symmetry axis 74.
  • the first symmetry axis 83B and the second symmetry axis 74 are oriented in an angle ⁇ with an accuracy of ⁇ 15° with respect to the direction of orientation 111; the angle can be a first angle for the first diamond particles or a second angle for the second diamond particles.
  • the direction of orientation 111 can be arranged parallel to a height direction, a width direction, a length direction, and/or any other defined direction of a segment.
  • the least 50 % of the plurality of diamond particles are oriented in the at least one defined angle ⁇ with an accuracy of ⁇ 10° with respect to the direction of orientation 111.
  • FIGS. 9A-C show a first exemplary version of a segment 120 according to the present invention composed of a first bond material 121A that is at least one of sintered, pressed, and infiltrated, a second bond material 121B that is at least one of sintered, pressed, and infiltrated, a first plurality of diamond particles 122, and a second plurality of diamond particles 123 in a top view ( FIG. 9A ), in a first side view ( FIG. 9B ) and in a second side view ( FIG. 9C ).
  • the segment 120 has an outer shape including a height in a height direction 124, a width in a width direction 125, and a length in a length direction 126.
  • the outer shape of the segment 120 is similar to the segments 34, 35, 36 of the diamond blade 30 shown in FIGS. 2A , B.
  • the outer shape of the segment 120 differs from the segments 14, 15 and segments 54, the concept of orienting the first and second diamond particles 122, 123 with respect to the direction of orientation is applicable to all segments for abrasive power tools.
  • the first plurality of first diamond particles 122 is selected from a first distribution of diamond particles and the second plurality of second diamond particles 123 is selected from a second distribution of diamond particles, the first distribution and second distribution being characterized by features selected from a particle size, a crystal perfection, a toughness and/or a diamond growth morphology.
  • the first distribution and second distribution of diamond particles differ in at least one of their features particle size, crystal perfection, toughness and diamond growth morphology.
  • the first diamond particles 122 differ at least in the particle size and the diamond growth morphology from the second diamond particles 123.
  • the first plurality of first diamond particles 122 includes at least one of the five types of the diamond particles 60, 70, 80, 90, 100 shown in the FIGS. 4A to E having at least one axis of rotational symmetry and having first outer geometries being composed of cubic faces 61, 81, 91, 101 and/or of octahedral faces 72, 82, 92, 102.
  • the segment 120 has a sandwich structure in the width direction 125 and comprises a first section S 1 composed of the first bond material 121A and the first plurality of first diamond particles 122, and two second sections S 2 composed of the second bond material 121B and the second plurality of second diamond particles 123.
  • the cutting behavior and/or the wear resistance of the segment 120 can be adapted to specific requirements.
  • the predetermined particle pattern and/or the defined projection of the diamond particles in the predetermined particle pattern and/or the angular orientation of the diamond particles in the defined projection can be varied.
  • the first diamond particles 122 of the first section S 1 are arranged according to a first predetermined particle pattern PP 1 and at least partially oriented in a first defined cubic projection PRO, ( FIG. 9B ), and the second diamond particles 123 of the second sections S 2 are arranged according to a second predetermined particle pattern PP 2 and randomly oriented ( FIG. 9C ).
  • the first and second predetermined particle pattern PP 1 , PP 2 are different.
  • the first diamond particles 122 are arranged in the cubic projection in a first angular orientation AO 1 of 0° ( FIG. 9B ), and the second diamond particles 123 are randomly oriented ( FIG. 9C ).
  • the first angular orientation AO 1 is defined with respect to the length direction 126 of the segment 120.
  • the first bond material 121A and second bond material 121B are at least one of sintered, pressed, and infiltrated and characterized by at least one feature selected from a chemical composition, a powder morphology, and a degree of alloying.
  • FIGS. 10A-C show a second exemplary version of a segment 130 according to the present invention composed of a first bond material 131A that is at least one of sintered, pressed, and infiltrated, a second bond material 131B that is at least one of sintered, pressed, and infiltrated, a first plurality of diamond particles 132, and a second plurality of diamond particles 133 in a top view ( FIG. 10A ), in a first side view ( FIG. 10B ) and in a second side view ( FIG. 10C ).
  • the segment 130 has an outer shape including a height in a height direction 134, a width in a width direction 135, and a length in a length direction 136.
  • the outer shape of the segment 130 is similar to the segments 34, 35, 36 of the diamond blade 30 shown in FIGS. 2A , B.
  • the outer shape of the segment 130 differs from the segments 14, 15 and segments 54, the concept of orienting the first and second diamond particles 132, 133 with respect to the direction of orientation is applicable to all segments for abrasive power tools.
  • the first plurality of first diamond particles 132 is selected from a first distribution of diamond particles and the second plurality of second diamond particles 133 is selected from a second distribution of diamond particles, the first distribution and second distribution being characterized by features selected from a particle size, a crystal perfection, a toughness and/or a diamond growth morphology.
  • the first distribution and second distribution of diamond particles differ in at least one of their features particle size, crystal perfection, toughness and diamond growth morphology.
  • the first diamond particles 132 differ at least in the particle size from the second diamond particles 133.
  • the first plurality of first diamond particles 132 and the second plurality of second diamond particles 133 include at least one of the five types of the diamond particles 60, 70, 80, 90, 100 shown in the FIGS. 4A to E having at least one axis of rotational symmetry and having outer geometries being composed of cubic faces 61, 81, 91, 101 and/or of octahedral faces 72, 82, 92, 102.
  • the segment 130 has a sandwich structure in the width direction 134 and comprises a first section S 1 composed of the first bond material 131A and the first plurality of first diamond particles 132, and two second sections S 2 composed of the second bond material 131B and the second plurality of second diamond particles 133.
  • the cutting behavior and/or the wear resistance of the segment 130 can be adapted to specific requirements.
  • the predetermined particle pattern and/or the defined projection of the diamond particles 132, 133 in the predetermined particle pattern and/or the angular orientation of the diamond particles 132, 133 in the defined projection can be varied.
  • the first diamond particles 132 of the first section S 1 are arranged according to a first predetermined particle pattern PP 1 and at least partially oriented in a first defined projection PRO 1 ( FIG. 10B ), and the second diamond particles 133 of the second sections S 2 are arranged according to a second predetermined particle pattern PP 2 and at least partially oriented in a second defined projection PRO 2 ( FIG. 10C ).
  • the first and second predetermined particle pattern PP 1 , PP 2 are identical and the first and second defined projections PRO 1 , PRO 2 are cubic projections.
  • the first diamond particles 132 are arranged in the cubic projection in a first angular orientation AO 1 of 45° ( FIG. 10B ), and the second diamond particles 133 are arranged in the cubic projection in a second angular orientation AO 2 of 0° ( FIG. 10C ).
  • the first and second angular orientations AO 1 , AO 2 are defined with respect to the length direction 136 of the segment 130.
  • the first and second diamond particles 132, 133 may be oriented in a cubic, octahedral, or dodecahedral projection in order to take advantage of the particular mechanical properties of their crystal planes. Diamond particles oriented in a given projection may then be given preferred angular orientations to achieve the desired mechanical properties and cutting geometries.
  • the first bond material 131A and second bond material 131B are at least one of sintered, pressed, and infiltrated and characterized by at least one feature selected from a chemical composition, a powder morphology, and a degree of alloying.
  • FIGS. 11A-C show a third exemplary version of a segment 140 according to the present invention composed of a first bond material 141A that is at least one of sintered, pressed, and infiltrated, a second bond material 141B that is at least one of sintered, pressed, and infiltrated, a first plurality of diamond particles 142, and a second plurality of diamond particles 143 in a top view ( FIG. 11A ), in a first side view ( FIG. 11B ) and in a second side view ( FIG. 11C ).
  • the segment 140 has an outer shape including a height in a height direction 144, a width in a width direction 145, and a length in a length direction 146.
  • the outer shape of the segment 140 is similar to the segments 34, 35, 36 of the diamond blade 30 shown in FIGS. 2A , B.
  • the outer shape of the segment 140 differs from the segments 14, 15 and segments 54, the concept of orienting the first and second diamond particles 142, 143 with respect to the direction of orientation is applicable to all segments for abrasive power tools.
  • the first plurality of first diamond particles 142 is selected from a first distribution of diamond particles and the second plurality of second diamond particles 143 is selected from a second distribution of diamond particles, the first distribution and second distribution being characterized by features selected from a particle size, a crystal perfection, a toughness and/or a diamond growth morphology.
  • the first distribution and second distribution of diamond particles differ in at least one of their features particle size, crystal perfection, toughness and diamond growth morphology.
  • the first diamond particles 142 differ at least in the particle size from the second diamond particles 143.
  • the first plurality of first diamond particles 142 and the second plurality of second diamond particles 143 include at least one of the five types of the diamond particles 60, 70, 80, 90, 100 shown in the FIGS. 4A to E having at least one axis of rotational symmetry and having outer geometries being composed of cubic faces 61, 81, 91, 101 and/or of octahedral faces 72, 82, 92, 102.
  • the first diamond particles 142 of the first section S 1 are arranged according to a first predetermined particle pattern PP 1 and at least partially oriented in a first defined projection PRO 1 ( FIG. 11B ), and the second diamond particles 143 of the second sections S 2 are arranged according to a second predetermined particle pattern PP 2 and at least partially oriented in a second defined projection PRO 2 ( FIG. 11C ).
  • the first and second predetermined particle pattern PP 1 , PP 2 are identical and the first and second defined projections PRO 1 , PRO 2 are octahedral projections.
  • the first diamond particles 142 are arranged in the octahedral projection PRO 1 in a first angular orientation AO 1 of 60° ( FIG. 11B ), and the second diamond particles 143 are arranged in the octahedral projection PRO 2 in a second angular orientation AO 2 of 0° ( FIG. 11C ).
  • the first and second angular orientations AO 1 , AO 2 are defined with respect to the length direction 146 of the segment 140.
  • the first and second diamond particles 142, 143 may be oriented in a cubic, octahedral, or dodecahedral projection in order to take advantage of the particular mechanical properties of their crystal planes. Diamond particles oriented in a given projection may then be given preferred angular orientations to achieve the desired mechanical properties and cutting geometries.
  • the first bond material 141A and second bond material 141B are at least one of sintered, pressed, and infiltrated and characterized by at least one feature selected from a chemical composition, a powder morphology, and a degree of alloying.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Carbon And Carbon Compounds (AREA)
EP23191178.5A 2023-08-11 2023-08-11 Segment avec première et deuxième particules de diamant orientées et insert d'outil équipé des segments Pending EP4506105A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23191178.5A EP4506105A1 (fr) 2023-08-11 2023-08-11 Segment avec première et deuxième particules de diamant orientées et insert d'outil équipé des segments
PCT/EP2024/072472 WO2025036815A1 (fr) 2023-08-11 2024-08-08 Segment à première et seconde particules de diamant orientées et insert d'outil équipé des segments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23191178.5A EP4506105A1 (fr) 2023-08-11 2023-08-11 Segment avec première et deuxième particules de diamant orientées et insert d'outil équipé des segments

Publications (1)

Publication Number Publication Date
EP4506105A1 true EP4506105A1 (fr) 2025-02-12

Family

ID=87571936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23191178.5A Pending EP4506105A1 (fr) 2023-08-11 2023-08-11 Segment avec première et deuxième particules de diamant orientées et insert d'outil équipé des segments

Country Status (2)

Country Link
EP (1) EP4506105A1 (fr)
WO (1) WO2025036815A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453106A (en) * 1993-10-27 1995-09-26 Roberts; Ellis E. Oriented particles in hard surfaces
KR100556189B1 (ko) * 2004-12-30 2006-03-06 이화다이아몬드공업 주식회사 절삭공구용 절삭팁 및 절삭공구
US20060073774A1 (en) * 2004-09-29 2006-04-06 Chien-Min Sung CMP pad dresser with oriented particles and associated methods
US20090094902A1 (en) * 2007-08-28 2009-04-16 Jiaxiang Hou Grinding Tools that Contain Uniform Distribution of Abrasive Grits and Method of Manufacture Thereof
WO2016161170A1 (fr) * 2015-03-31 2016-10-06 Saint-Gobain Abrasives, Inc. Articles abrasifs fixes et leurs procédés de formation
WO2018080778A1 (fr) * 2016-10-25 2018-05-03 3M Innovative Properties Company Articles abrasifs liés comprenant des particules abrasives orientées et leurs procédés de fabrication

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453106A (en) * 1993-10-27 1995-09-26 Roberts; Ellis E. Oriented particles in hard surfaces
US20060073774A1 (en) * 2004-09-29 2006-04-06 Chien-Min Sung CMP pad dresser with oriented particles and associated methods
KR100556189B1 (ko) * 2004-12-30 2006-03-06 이화다이아몬드공업 주식회사 절삭공구용 절삭팁 및 절삭공구
US20090094902A1 (en) * 2007-08-28 2009-04-16 Jiaxiang Hou Grinding Tools that Contain Uniform Distribution of Abrasive Grits and Method of Manufacture Thereof
WO2016161170A1 (fr) * 2015-03-31 2016-10-06 Saint-Gobain Abrasives, Inc. Articles abrasifs fixes et leurs procédés de formation
WO2018080778A1 (fr) * 2016-10-25 2018-05-03 3M Innovative Properties Company Articles abrasifs liés comprenant des particules abrasives orientées et leurs procédés de fabrication

Also Published As

Publication number Publication date
WO2025036815A1 (fr) 2025-02-20

Similar Documents

Publication Publication Date Title
JP4860689B2 (ja) 切削工具用切削チップ及び切削工具
US20220055183A1 (en) Machining segment for a machining tool
JP2019505395A (ja) 電極黒鉛用カッターおよび酸化物セラミック加工用正面フライス
JPH03277412A (ja) ねじれ刃を有する切削工具及びその製造方法
EP4506105A1 (fr) Segment avec première et deuxième particules de diamant orientées et insert d'outil équipé des segments
KR100527395B1 (ko) 다이아몬드 공구
EP4506104A1 (fr) Segment avec première et deuxième particules de diamant orientées et insert d'outil équipé des segments
EP4506103A1 (fr) Segment avec particules de diamant orientées et insert d'outil équipé des segments
KR20020068171A (ko) 가공팁 및 이를 포함하는 절삭휠, 연마휠, 천공휠
EP4506102A1 (fr) Segments avec particules de diamant orientées et insert d'outil équipé des segments
US5190420A (en) Solid end mill for finishing the face or side of hard work
KR100680850B1 (ko) 다이아몬드 공구용 절삭팁 및 다이아몬드 공구
MXPA01011838A (es) Herramienta giratoria con accion combinada de abrasion y de fragmentacion para producir perfiles o cortes en hojas de material fragil tales como marmol, granito, piedra, vidrio.
EP0404298B1 (fr) Fraise à queue pour le finissage de pièces d'oeuvre dures
KR100337655B1 (ko) 세그먼트 타입 절삭팁을 갖는 다이아몬드 공구
JP2008229764A (ja) 回転工具及び加工方法
KR101126107B1 (ko) 가공팁
CN209850663U (zh) 一种基于石材加工打磨的磨片
KR100666714B1 (ko) 절삭공구
JP2015202529A (ja) 研削用砥石およびそれによって加工された切削工具
JP2008526526A (ja) 切削工具用切削チップ及び切削工具
US7021307B1 (en) Rotary cutting saw
JP4198824B2 (ja) 切削用チップの製造方法
JP3066996U (ja) 穿孔工具
KR100959022B1 (ko) 2단 입도 커터휠 및 그 제조방법

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR