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WO2010105608A1 - Outil de coupe muni d'une plaquette de coupe interchangeable - Google Patents

Outil de coupe muni d'une plaquette de coupe interchangeable Download PDF

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Publication number
WO2010105608A1
WO2010105608A1 PCT/DE2010/000300 DE2010000300W WO2010105608A1 WO 2010105608 A1 WO2010105608 A1 WO 2010105608A1 DE 2010000300 W DE2010000300 W DE 2010000300W WO 2010105608 A1 WO2010105608 A1 WO 2010105608A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting insert
carrier
cutting
insert carrier
rotation
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.)
Ceased
Application number
PCT/DE2010/000300
Other languages
German (de)
English (en)
Inventor
Jochen Gruber
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.)
Guehring KG
Original Assignee
Guehring KG
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 Guehring KG filed Critical Guehring KG
Publication of WO2010105608A1 publication Critical patent/WO2010105608A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2205/00—Fixation of cutting inserts in holders
    • B23B2205/02—Fixation using an elastically deformable clamping member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/02—Connections between shanks and removable cutting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/50—Drilling tools comprising cutting inserts

Definitions

  • the present invention relates to a cutting insert carrier according to the preamble of claim 1, a cutting insert fastened thereto according to the preamble of claim 14, a rotationally driven cutting tool with such a cutting insert carrier and such a cutting insert and a mounting method for this cutting tool.
  • Cutting tools with exchangeable cutting inserts are known from the prior art, in which the cutting insert is inserted and fastened in a front-side slot of a cutting insert carrier.
  • the attachment of the cutting insert to the cutting insert carrier can be done in various ways.
  • the cutting insert z. B. by means of a screw directly to the support attach (EP 0 625 395 A1) or between the cheeks by means of grub screws clamp (DE 42 39 311 A1, DE 197 36 598 A1).
  • fastening screws leads to the weakening of the cutting tool and can be realized only to a limited extent, in particular with cutting tools with small diameters.
  • a cutting tool in which the tool head is also fixed via clamping surfaces with the carrier and additionally has a releasable snap connection, which additionally represents a fixation in the axial direction.
  • a reversible snap connection between the cutting insert and the tool carrier in the circumferential direction is known from EP 1 273 373 A1.
  • This snap connection is achieved either by radially elastic deflection of the cheeks of the wearer or provided in the carrier elastic pins.
  • the provision of elastic pins in the carrier not only increases the manufacturing effort and the associated complexity of the tool, but can lead to similar problems, especially with tools with small diameters as have been described above with respect to screw.
  • the snap connection should be made by radially deflecting the cheeks, they can not be made too rigid in order to realize the snap connection at all, but this means that these cheeks can then withstand no greater torques.
  • Object of the present invention is therefore to provide a cutting tool with a cutting insert carrier and secured against loosening replaceable cutting insert, which allows a fastening and releasing the cutting insert in a simple manner and yet withstand high cutting forces.
  • the cutting insert carrier according to the invention has a slot formed on the front side for receiving a replaceable cutting insert and a locking element in order to be able to form an elastically releasable positive connection in a fastening position with a locking element that is correspondingly complementary to the cutting insert.
  • the locking element is provided on a portion which is elastically deflectable for fastening and for releasing the cutting insert substantially perpendicular to the cutting direction of the cutting insert.
  • the connection between the cutting insert and the cutting insert carrier has no effect on the design of both parts with respect to the occurring cutting forces and moments. That is, the cutting insert carrier, in particular the strength of the cheek, can be designed so that it withstands the occurring cutting forces and moments.
  • the design of the elastic positive fit can be separated from the strength requirements of the cutting operation so that the provision of a resilient snap connection between the cutting insert carrier and the cutting insert does not weaken the tool.
  • the cutting insert carrier according to the invention can have at least two cheeks defined by the slot, each of which has an inner surface which comes into abutment with a corresponding side face of the cutting insert in the attachment position.
  • the locking element is in the form of a projection with an undercut step.
  • the positive connection between the cutting insert carrier and the cutting insert is advantageously achieved by means of an undercut step in a correspondingly formed locking element which engages the cutting insert.
  • the cutting insert is thus fixed in the circumferential direction, as in one direction of the cutting insert with a Side surface bears against the inner surface of the cheek and is held in the other direction on the positive connection of the locking elements.
  • the cutting surface and the cutting surface opposite side surface of the cutting insert on the cheek lies flat, so that the positive connection only a rotation of the cutting insert in the direction of rotation, ie against the cutting forces prevented.
  • the slot formed in the cutting insert carrier has a base surface for the axial support of the cutting insert.
  • the step is made with respect to the axis of rotation of the cutting insert carrier and extends in the feed direction of the tool carrier inwards. This ensures that the projection with the undercut step secures the cutting insert not only in the circumferential direction, but also in the axial direction against loosening, without having to make any other additional design measures, which in turn would bring increased manufacturing costs.
  • the angle which includes step and axis of rotation, in a range of 5 to 30 °, preferably 15 to 25 °, on the one hand to achieve the above-mentioned axial securing and on the other hand to have sufficient leverage to elastically deflect the projection perpendicular to the cutting direction or perpendicular to the inner surface of the cheek.
  • the front-side formed slot in the cutting insert carrier can be particularly easily finished when the inner surface of the cheeks including the projecting surface is parallel to the axis of rotation.
  • each cheek may have a slot substantially in the cutting direction of the cutting insert which divides the cheek into a smaller outer cheek portion and a larger inner cheek portion, the locking member being provided on the outer cheek portion.
  • the outer cheek portion is separated from the inner cheek portion, this can also much easier elastic deflect perpendicular to the cutting direction, so that the necessary force for attaching and releasing the positive connection force can be limited. Since the inner cheek portion for fixing and loosening the cutting insert does not need to be deflected, this can be held so rigid that it can withstand very high cutting forces and moments.
  • the slot should be at least as deep as the axial extent of the projection in order to ensure a deflectability of the entire locking element can.
  • the inner cheek section may preferably have a coolant channel with an end-side outlet opening in order to guide the coolant to the tool tip and to be able to ensure sufficient cooling of the cutters.
  • the inner cheek portion may have on its inside only a coolant groove, which forms a cooling channel in cooperation with the voltage applied to the inner surface cutting insert.
  • the base surface may have a cooling passage exit opening and a recess for establishing a coolant connection between the latter Cooling channel opening and a coolant groove in the inner cheek section have. If the cutting insert carrier has no helical coolant channels but only a central coolant channel, this recess, when the cutting insert in the attachment position sealingly covers this, ensures distribution of the coolant to the respective cutting edges.
  • the inner cheek section should have a recessed or flattened section on its inner surface.
  • the cheek not only serves to secure the cutting insert but can also form part of the cutting edge geometry.
  • the end face can serve as an open space of the tool and be designed such that it terminates radially and circumferentially flush with the cutting insert to be used.
  • the locking element which serves to form the elastically releasable positive connection with a correspondingly complementary locking element on the cutting insert carrier, is formed on the side surface in the form of a recess with an undercut step.
  • the cutting insert is in the inserted state on the one hand over the base surface and the others axially secured over the projection with the salaried stage.
  • the projection with the undercut step not only assumes the fixation in the circumferential direction, but also in the axial direction.
  • the step and axis of rotation may include an angle in a range of 5 to 30 degrees, preferably 15 to 25 degrees.
  • the positional fixation can take place exclusively via the interaction of the insert-side locking element with the carrier-side locking element, the side surfaces of the cutting insert together with the recess surface can run parallel to the axis of rotation, as a result of which the manufacture of the cutting insert can be greatly simplified overall.
  • the cutting insert may be rotationally symmetrical with respect to the axis of rotation.
  • the cutting insert can be a plate-shaped cutting blade with side surfaces that are plane-parallel to one another, wherein the cutting edges are offset by 180 ° relative to the axis of rotation.
  • the cutting insert is preferably made of hard metal and has at least partially a coating.
  • this coating may contain, for example, titanium nitrite or titanium aluminum nitrite.
  • the cutting insert has an end face which terminates in the fastening position radially and in the circumferential direction flush with a corresponding end face of the cutting insert carrier, the interaction of the cutting insert carrier and the cutting insert can be further improved.
  • the problem underlying the invention is solved by the features of claim 24.
  • the invention is for fastening and releasing the cutting insert a the locking element on the cutting insert carrier exhibiting portion elastically deflected substantially perpendicular to the cutting direction of the cutting insert. Since the interaction of cutting insert carrier and cutting insert is designed so that the carrier-side locking element is deflected only perpendicular to the cutting direction, the cutting tool can be designed in the cutting direction so that it can absorb large torques. Furthermore, this positive connection allows attachment of the cutting insert in the cutting insert carrier, which is practical even with cutting tools with small diameters and allows unimpeded coolant supply to the tool tip.
  • Objects of claims 25 and 26 are a method of mounting a replaceable cutting insert in a cutting insert carrier and a method of replacing such a cutting insert.
  • FIG. 1 shows a cutting tool with a cutting insert carrier and a cutting insert to be inserted therein according to a first embodiment of the invention
  • FIG. 2 shows the cutting tool with inserted cutting insert according to the first embodiment of the invention.
  • Fig. 3 is a side view of the cutting insert according to the first embodiment of the invention.
  • Fig. 4 is a side view of the cutting insert shown in Fig. 3;
  • Fig. 5A is a plan view of the cutting insert shown in Fig. 3;
  • Fig. 5B is a sectional view taken along the line BB in Fig. 3
  • Fig. 6 is a sectional view taken along the line AA in Fig. 3;
  • FIG. 7 is a cross-sectional view of the upper portion of a cutting insert carrier according to the first embodiment of the invention.
  • FIG. 8 is a plan view of the cutting insert carrier shown in FIG. 7; FIG.
  • FIG. 9 is a side view of the cutting insert carrier with inserted cutting insert.
  • FIG. 10 is a plan view of the cutting insert carrier shown in FIG. 9 with the cutting insert inserted; FIG.
  • FIG. 11 is a plan view of a cutting insert carrier with inserted cutting insert according to a second embodiment of the invention.
  • Fig. 12 is a perspective view of the cutting tool according to the second embodiment.
  • FIGs 1 and 2 show a cutting tool 2 according to the invention with a cutting insert carrier 4 and a cutting insert 6 to be fastened therein.
  • this is inserted axially into a slot 10 formed on the cutting insert carrier 4 at the front and then counter to the direction of rotation (ie in FIG 1) until the cutting insert 6 comes into contact with the inner sides of the cheek 12 defined by the slot 10 flatly.
  • an inlet tube 13 is connected between the cutting insert 6 and the cutting insert carrier.
  • 2 shows the cutting tool 2 according to the invention with the cutting insert 6 fastened in the cutting insert carrier 4 and the inlet tube 13 received therebetween.
  • the cutting insert Specifically, attached to the cutting insert carrier 4 and the feed tube 13 received therebetween will be described in detail below.
  • the cutting insert is a plate-shaped body 6 of rotational symmetry with respect to the axis of rotation A, with side surfaces 14 and outer surfaces 16 that are plane-parallel to one another.
  • the cutting insert further has a perpendicular to the axis of rotation A and serving for axial support in the slot 10 of the cutting insert carrier 4 Base surface 18 and two of the base 18 opposite free surfaces 20, which include a point angle ⁇ of about 150 ° and define a transverse cutting edge 22.
  • the side surfaces 14 have, on the side opposite the respective cutting edge 8, a recess 24 with a surface 26 which is plane-parallel to the side surface 14.
  • the surfaces 14 and 26 are separated by an undercut step 28 (Figure 6).
  • the straight step 28 is employed with respect to the axis of rotation by an angle ⁇ of about 20 ° and extends in the feed direction of the cutting insert 6 to the inside.
  • the recess 24 is located on the radially outer portion of the cutting insert 4 defined by the step 28.
  • the step 28 has, as already mentioned above, an undercut in order to be able to form a positive fit with a complementarily formed step on the cutting insert carrier 4.
  • the step 28 has an outer edge 30 and an inner edge 32, which, as shown in FIG. 6, are rounded.
  • a coaxial bore 70 extends to a substantially perpendicular to the axis of rotation
  • a running Stichkanalbohrung 72 which opens on both sides of the cutting insert 6 in the side surfaces 14.
  • the Stichkanalbohrung 72 does not run along a transverse axis B, but is employed to this by an angle ß of about 20 °, as shown in Fig. 5B can be seen.
  • the diameter of both components are correspondingly tight tolerated.
  • the diameter d a of the axial bore 70 is about the wall thickness w of the Einspeiserschreibchens 13 to be used greater than the diameter d r of the Stichkanalbohrung 72 so that the flow cross-section of the coolant at the transition from the feed tube 13 to Stichkanalbohrung 72 remains the same.
  • the cutting insert is made of solid carbide and has, depending on the application, a corresponding coating z.
  • a corresponding coating z As titanium nitrite or Aluminiumtitannitrit or the like.
  • the cutting insert carrier 4 has on its front side a slot 10, as best seen in FIG. 1, which extends transversely to the axis of rotation A.
  • the cutting insert carrier 4 also has two cheeks 12, which are defined next to the slot 10 by helically extending flutes 34 and the outer diameter of the Schneid donorstos 4.
  • Each cheek 12 has an inner surface 36 extending parallel to the axis of rotation A and a projection 38 which is plane-parallel to this inner surface 36.
  • the step 40 extending between the projection 38 and the inner surface 36 is set at the same angle ⁇ with respect to the axis of rotation A as the step described above 28 of the cutting insert 6.
  • each cheek 12 has a continuous slot 46 running perpendicular to the inner surface 36, which axis extends parallel to the axis of rotation and has a slot depth T which has at least the length L of the axial extent of the projection 38.
  • the slot 46 divides each cheek into an inner cheek section 48 and an outer cheek section 50, the projection 38 being formed on the outer cheek section 50.
  • the end faces 52 of the cheek 12 form the free surfaces of the cutting tool 2 according to the invention.
  • the slot 10 has a perpendicular to the axis of rotation base 54, which serves for the axial support of the cutting insert 6 in the cutting insert carrier 4. Furthermore, the cutting insert carrier 4 has a central coolant channel 56 with a enlarged end portion 57, in which the Einspeiserschreibchen 13 can be used accurately.
  • the diameter d e of the end section is greater than the diameter dk of the coolant channel 56 by the wall thickness w of the inlet tube 13 to be used, so that the flow cross-section of the coolant remains the same at the transition from the coolant channel 56 to the inlet tube 13 and their inner surfaces abut each other flush.
  • Semi-circular coolant grooves 60 are provided in the cheeks 12 through which the via the cutting insert 6, i. via the bores 70 and 72, radially outwardly guided coolant is guided in the direction of the tip of the cutting tool 2 (see Fig. 7).
  • Cutting insert carrier 4 and cutting insert 6 are correspondingly adapted to each other, so that the puncture channel bore 72 of the cutting insert 6 also opens into the coolant grooves 60 of the cutting insert carrier 4. Ideally, the diameter of the mouth openings corresponds to the width of the coolant grooves 60.
  • the upper portion of the cutting insert carrier 4 with inserted cutting insert 6 can be seen.
  • the side surfaces 14 of the cutting insert 6 come into planar contact with the corresponding inner surfaces 36 of the cheeks 12.
  • the side surfaces 14 cover the coolant grooves 60 of the cutting insert carrier 4 so that closed coolant channels are formed.
  • the attachment principle of the second embodiment of the cutting tool according to the invention is identical to that of the first embodiment.
  • the differences of the second embodiment from the first embodiment are only in the design of the cutting edge geometry, which will be discussed in detail below.
  • FIG. 11 shows a plan view of the end face of a cutting tool 2 according to the invention with a cutting insert carrier 4 and a cutting insert 6.
  • the following procedure is adopted:
  • the feed tube 13 is inserted into the end portion 57 of the coolant channel 56 of the cutting insert carrier 4.
  • the feed tube 13 has a length such that it projects approximately halfway from the base 58 of the slot 10.
  • the cutting insert 6 is axially inserted into the slot 10 provided for this purpose in the cutting insert carrier 4.
  • Fig. 11 the state is shown, in which the cutting insert 6 is already used, but not yet positively connected to the cutting insert carrier 4.
  • the cutting insert 6, as indicated by arrows in FIG. 11, must be rotated counter to the direction of rotation of the cutting insert carrier 4.
  • the rounded outer edges 30 and 42 of the cutting insert 6 and the cutting insert carrier 4 meet.
  • the outer cheek portion 50 Since the projections 38 are each formed on the outer cheek portion 50, and this cheek portion is separated from the inner cheek portion 48 due to the slot 46, the outer cheek portion 50, as indicated by the arrows and the dashed line, gives way momentarily perpendicular to the course of the slot then, when the outer edges 30 and 42 have slid past each other and the side surfaces 14 of the cutting insert 6 come into abutment with the inner surfaces 36 of the Schneid donorstos 4, to return to their original position and on the mutual engagement of the undercut steps 28 and 40 to form an elastically releasable positive connection.
  • the feed tube 13 plays a crucial role as it fixes the central position of the cutting insert 6 and prevents the cutting insert 6 from deflecting in a radial direction when twisted against the bias of the outer cheek sections 50.
  • the outer cheek portion 50 with the projection 38 formed thereon substantially perpendicular to the cutting direction SR of the cutting insert 6 elastically deflected. Therefore, the outer cheek portion 50 can be designed so that it is rigid in the cutting direction SR, but in a direction perpendicular to the necessary for the positive connection elastic deflection allowed. Since both outer cheek sections 50 want to return to their original position in the attachment position and move in opposite directions, an elastic positive connection is thereby formed.
  • the feeding tube 13 counteracts any radial forces occurring on the cutting insert 6 and centers the cutting insert 6 with respect to the cutting insert carrier 4.
  • the cheeks 12 In order to pivot the cutting insert 6 for attachment or release in the slot 10, the cheeks 12 must have a recessed or flattened portion 62.
  • the cutting insert 6 does not have straight but curved cutting edges 8 as in the first embodiment. Furthermore, the cutting insert 6 has a rake face 64 which merges flush into the flute 34 of the cutting insert carrier 4, as in FIG. 12 is clearly visible.
  • the cutting tool according to the invention has been described in relation to a drilling tool with a removable plate with two cutting edges.
  • the attachment according to the invention of a replaceable cutting insert in a cutting insert carrier is not limited to the described embodiments.
  • cutting inserts with three and more cutting edges can be used in cutting insert carriers with three or more cheeks according to the invention.
  • the cutting insert may have any tip angle and / or point ground.
  • the material of the cutting insert can be adapted to the particular application.
  • the angle of attack ⁇ of the undercut steps should be selected so that an axial securing of the cutting insert is ensured at the same time via the step and, on the other hand, sufficient lever for radially elastic deflection of the outer cheek section is made possible.
  • the axial coolant grooves may be provided not only on the cutting insert carrier, but additionally or instead on the side surfaces of the cutting insert, which in cooperation with the cheeks of the cutting insert carrier form closed coolant channels to guide the coolant to the tool tip.
  • MQL minimum quantity lubrication

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

L'invention concerne un outil de coupe (2) entraîné en rotation, comprenant un support de plaquette de coupe (4) et une plaquette de coupe (6) interchangeable sécurisée contre un détachement, laquelle est reçue dans une rainure (10) formée sur le côté frontal du support de plaquette de coupe, la plaquette de coupe et le support de plaquette de coupe présentant des éléments de verrouillage (24, 38) de forme complémentaire qui forment une liaison par complémentarité de forme élastiquement libérable dans la position de fixation. Selon l'invention, l'élément de verrouillage (38) sur le support de plaquette de coupe est prévu sur une section (50) qui peut être élastiquement déviée dans la direction radiale de manière essentiellement perpendiculaire à la direction de coupe SR de la plaquette de coupe pour fixer et libérer la plaquette de coupe.
PCT/DE2010/000300 2009-03-18 2010-03-18 Outil de coupe muni d'une plaquette de coupe interchangeable Ceased WO2010105608A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102009013780 2009-03-18
DE102009013780.7 2009-03-18
DE102009044994.9 2009-09-24
DE102009044994.9A DE102009044994B4 (de) 2009-03-18 2009-09-24 Schneidwerkzeug mit austauschbarem Schneideinsatz, Schneideinsatzträger, Verfahren zum Befestigen eines austauschbaren Schneideinsatzes, Verfahren zum Austauschen eines Schneideinsatzes

Publications (1)

Publication Number Publication Date
WO2010105608A1 true WO2010105608A1 (fr) 2010-09-23

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PCT/DE2010/000300 Ceased WO2010105608A1 (fr) 2009-03-18 2010-03-18 Outil de coupe muni d'une plaquette de coupe interchangeable

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DE (1) DE102009044994B4 (fr)
WO (1) WO2010105608A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011035774A1 (fr) * 2009-09-24 2011-03-31 Gühring Ohg Outil de coupe à insert de coupe interchangeable
EP3085480A1 (fr) * 2015-04-21 2016-10-26 Chengdu Fengyi Precision Tools Manufacture Co. Ltd Foret en alliage dur à tête remplaçable autobloquante
US11090737B2 (en) 2019-08-29 2021-08-17 Kennametal Inc. Rotary cutting tool with tunable vibration absorber assembly for suppressing torsional vibration
US11453063B2 (en) 2017-05-31 2022-09-27 Kennametal Inc. Multilayer nitride hard coatings

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9156095B2 (en) * 2009-11-09 2015-10-13 No Screw Ltd. Cutting tool, cutting tool holder, and a cutting insert therefor
DE102011051374B4 (de) * 2011-06-27 2021-08-26 Gühring KG Wechselplatten-Bohrwerkzeug

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US6506003B1 (en) * 2001-10-02 2003-01-14 Kennametal Inc. Cutting tool
WO2005115667A1 (fr) * 2004-05-24 2005-12-08 Iscar Ltd. Foret a tete de coupe montee liberable
WO2006046227A1 (fr) * 2004-10-28 2006-05-04 Iscar Ltd. Ensemble d'outil coupant et tete coupante associee
WO2008072840A2 (fr) * 2007-11-05 2008-06-19 Taegutec. Ltd. Fraise

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DE4239311C2 (de) 1992-11-23 1996-04-18 Guehring Joerg Dr Bohrer, insbesondere Spitzbohrwerkzeug mit austauschbarem Schneideinsatz
DE59300150D1 (de) 1993-05-10 1995-05-24 Stellram Gmbh Bohrwerkzeug für metallische Werkstoffe.
DE4435857A1 (de) 1994-10-07 1996-04-11 Kennametal Hertel Ag Bohrer mit einem Bohrspitzenteil
SE511429C2 (sv) 1996-09-13 1999-09-27 Seco Tools Ab Verktyg, skärdel, verktygskropp för skärande bearbetning samt metod för montering av skärdel till verktygskropp
IL120948A0 (en) 1997-05-29 1997-09-30 Iscar Ltd Cutting tool assembly
DE19736598C2 (de) 1997-08-22 1999-07-01 Guehring Joerg Dr Bohrer, insbesondere Spitzbohrwerkzeug, mit gegen Lösen gesichertem austauschbarem Schneideinsatz
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SE523205C2 (sv) 2001-06-06 2004-04-06 Sandvik Ab Roterbart verktyg med utbytbar skärspets vid verktygets spånavverkande fria ände

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Publication number Priority date Publication date Assignee Title
US6506003B1 (en) * 2001-10-02 2003-01-14 Kennametal Inc. Cutting tool
WO2005115667A1 (fr) * 2004-05-24 2005-12-08 Iscar Ltd. Foret a tete de coupe montee liberable
WO2006046227A1 (fr) * 2004-10-28 2006-05-04 Iscar Ltd. Ensemble d'outil coupant et tete coupante associee
WO2008072840A2 (fr) * 2007-11-05 2008-06-19 Taegutec. Ltd. Fraise

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011035774A1 (fr) * 2009-09-24 2011-03-31 Gühring Ohg Outil de coupe à insert de coupe interchangeable
EP3085480A1 (fr) * 2015-04-21 2016-10-26 Chengdu Fengyi Precision Tools Manufacture Co. Ltd Foret en alliage dur à tête remplaçable autobloquante
US20160311035A1 (en) * 2015-04-21 2016-10-27 Chengdu Fengyi Precision Tools Manufacture Co., Ltd Self-Locking Head-Replaceable Hard Alloy Drill Bit
US10081066B2 (en) * 2015-04-21 2018-09-25 Chengdu Fengyi Precision Tools Manufacture Co., Ltd Self-locking head-replaceable carbide drill
US11453063B2 (en) 2017-05-31 2022-09-27 Kennametal Inc. Multilayer nitride hard coatings
US11090737B2 (en) 2019-08-29 2021-08-17 Kennametal Inc. Rotary cutting tool with tunable vibration absorber assembly for suppressing torsional vibration
US11691205B2 (en) 2019-08-29 2023-07-04 Kennametal Inc. Rotary cutting tool with tunable vibration absorber assembly for suppressing torsional vibration
US12240046B2 (en) 2019-08-29 2025-03-04 Kennametal Inc. Rotary cutting tool with tunable vibration absorber assembly for suppressing torsional vibration

Also Published As

Publication number Publication date
DE102009044994B4 (de) 2025-09-11
DE102009044994A1 (de) 2010-09-23

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