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EP4477334A1 - Laminoir, système et procédé de laminage d'un profil orienté longitudinalement - Google Patents

Laminoir, système et procédé de laminage d'un profil orienté longitudinalement Download PDF

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Publication number
EP4477334A1
EP4477334A1 EP23179424.9A EP23179424A EP4477334A1 EP 4477334 A1 EP4477334 A1 EP 4477334A1 EP 23179424 A EP23179424 A EP 23179424A EP 4477334 A1 EP4477334 A1 EP 4477334A1
Authority
EP
European Patent Office
Prior art keywords
profile
rolling
workpiece
shaft
region
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
EP23179424.9A
Other languages
German (de)
English (en)
Inventor
Lutz Kitzing
Stanley Neumann
Imre Galow
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.)
Profiroll Technologies GmbH
Original Assignee
Profiroll Technologies GmbH
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 Profiroll Technologies GmbH filed Critical Profiroll Technologies GmbH
Priority to EP23179424.9A priority Critical patent/EP4477334A1/fr
Publication of EP4477334A1 publication Critical patent/EP4477334A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/027—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls by rolling using reciprocating flat dies, e.g. racks

Definitions

  • the invention relates to a rolling machine for rolling a longitudinal profile, in particular a spline on a shaft-shaped or hollow shaft-shaped workpiece. Furthermore, a system and a method for rolling a longitudinal profile and a shaft-shaped or hollow shaft-shaped workpiece as a process product are described.
  • a device for cold rolling axially parallel profiles, for example gears, on rod-shaped workpieces with rotary-driven profile rollers that are conical in their inlet area and arranged parallel to the workpiece axis and at a fixed distance, between which the freely rotatable workpiece is continuously conveyed in the axial direction by a feed device that is independent of the roller drive.
  • a Such a process is referred to as a push-through rolling process in the context of the present disclosure.
  • Push-through rolling processes are particularly suitable for producing long profiles and/or profiles on hollow shafts, since the pressure on the workpiece is relatively low due to the relatively short contact area between the profile rollers and the workpiece.
  • the two opposing rollers have a cylindrical roller part with a constant profile cross-section and a conical inlet area, in which all profiles taper towards the inlet side, whereby the tip and root diameters of the rolled profile become smaller.
  • the cylindrical part can be followed by a further conical profiling in the outlet area with the same shape as in the inlet area in order to improve detachment even at high roller speeds and high feed rates of the workpiece. It is described in DE 1 013 612 B a roller drive and an independently designed feed drive.
  • round tools are not designed for the arrangement with two rollers in DE 1 013 612 B
  • three or more rolling tools can be arranged around a workpiece to apply a profile to a workpiece, see for example DE 803 232 A1 .
  • the invention aims to provide a rolling machine, a system and a method for rolling a longitudinal profile, in particular a spline on a workpiece, which on the one hand enables long service lives due to a wear-reduced working method and on the other hand decouples the workpiece geometry to some extent from the process requirements. Furthermore, it is an object of the invention to provide a novel shaft- or hollow-shaft-shaped workpiece.
  • the object is achieved by a rolling machine, a system and a method for rolling a longitudinal profile, in particular a spline on a workpiece, according to the features of the independent claims. Furthermore, the object is achieved by a shaft- or hollow shaft-shaped workpiece according to the Features of the independent patent claim. Advantageous embodiments are characterized by the features of the subclaims.
  • a rolling machine for rolling a longitudinal profile, in particular a spline, on a shaft-shaped or hollow shaft-shaped workpiece comprises at least one, preferably two, three or four similarly designed rolling tools and an electromechanical control device, in particular a CNC control, which is designed to enable a radial feed of the rolling tool to the workpiece and an axial feed movement of the workpiece relative to the rolling tool.
  • the abbreviation CNC stands for "Computerized Numerical Control”.
  • the CNC-controlled machine has good drive technology to carry out the desired feed movement on instructions from the machine control.
  • CNC-controlled rolling machines that use flat tools or flat jaws as well as rolling machines for round tools or round jaws.
  • the rolling tool or the workpiece is moved during the radial feed of the rolling tool to the workpiece.
  • the rolling tool is moved here.
  • the workpiece and/or the rolling tool can move.
  • the rolling tool comprises at least one rolling disk having a profile region, wherein the profile region has at least one inlet region, a calibration region and a relief region, wherein the calibration region is arranged downstream of the inlet region and the relief region is arranged downstream of the calibration region, specifically downstream with respect to an axial feed direction of the workpiece.
  • the transitions between the individual tool regions are preferably rounded.
  • the components referred to as disks in the context of the present disclosure can be components of a rolling beam as well as of a round rolling tool.
  • the axial feed direction can, but does not necessarily have to, coincide with a main or rotational axis of the rolling disk.
  • the axial feed direction runs perpendicular to the movement of the rolling beam in the rolling process.
  • the device is set up to be able to carry out a push-through rolling process in the sense described above.
  • the invention can be used for rolling both short and long workpieces, in particular for example for producing toothed shafts, gears, rotor shafts and the like.
  • the invention is particularly suitable for forming external gears on gear wheels or gear shafts. Helical or spiral gears and the like can also be produced using the tool according to the invention.
  • the workpieces can also be solid or hollow. Due to the relatively low pressure on the workpiece, the invention is particularly suitable for rolling hollow workpieces and/or long profiles.
  • the profile of the rolling disk can be homogeneous, i.e. of the same type. Alternatively, particularly when designed as a rolling beam, an incremental profile shape can also be provided within the transverse plane.
  • a transverse plane is a plane that is perpendicular to the axial feed direction.
  • the profile of the rolling disk can be selected appropriately; for example, serrations or involute teeth can be created on the workpiece.
  • the rolling disk therefore includes an inlet area for rolling the workpiece.
  • the inlet area comes into contact with the workpiece and is mainly stressed by it, i.e. most of the forming work on the workpiece is carried out by the inlet area.
  • the calibration area downstream of the inlet area is characterized by a consistent profile.
  • the calibration area is characterized, for example, by a consistent profile height, in particular consistent tooth height and tooth shape, along the feed direction.
  • the relief area downstream of the calibration area is characterized by a profile change, preferably by a profile reduction.
  • a profile change preferably by a profile reduction.
  • a constant profile depth with the profile being set back at an angle can preferably be provided.
  • a reduction in the profile depth or a change in the profile shape can be provided so that the workpiece gradually meshes less with the tool during the feed.
  • the relief region is arranged after the calibration region with respect to the feed direction.
  • the inlet area is larger than the relief area.
  • a flatter and longer inlet area compared to conventional push-through rolling tools is crucial for reducing wear on the rolling disk, as the feed force is distributed over a wider area.
  • the inlet area is therefore preferably larger than the calibration area.
  • the inlet region forms 50% or more, preferably 60% or more, even more preferably 70% or more, of the profile area.
  • the inlet area advantageously has a profile depression or a chamfer on the front side, preferably a profile depression.
  • a chamfer is understood to mean that in this area the profile rises from the front side towards the calibration.
  • the teeth become deeper and deeper until they approach the final tooth shape.
  • a profile depression is understood to mean that it has a uniform profile depth along the feed direction, but the uniform profile depth is machined at an angle with respect to the feed direction, so that the workpiece only gradually meshes with the workpiece during axial feed.
  • a chamfer angle characterizing the bevel or a profile depression angle of the profile characterizing the profile depression is as small as possible in the inlet region, preferably ⁇ 30°, more preferably ⁇ 15°, particularly preferably ⁇ 10° and even more preferably ⁇ 5°.
  • the depth of the chamfer or profile depression in the inlet area is selected so that there is no contact with the pre-rolling diameter of the workpiece at the edge of the chamfer.
  • the length and angle of the inlet chamfer can be designed independently of the workpiece geometry and can also be flexibly designed with regard to the calibration and run-out lengths as well as the tool width, whereby the feed force acting on the tool can continue to be distributed as the length of the inlet area increases.
  • the relief area and the inlet area are designed with opposing rise directions.
  • the relief area can therefore also be used to form a profile inlet on the workpiece, for example a threading bevel, as is described in more detail below.
  • the usable profile length or toothing length on the workpiece is advantageously not limited by the width of the rolling disk.
  • a plunge rolling process is carried out at one end of a workpiece area to be profiled with radial feed of the rolling disk to the workpiece, then a push-through rolling process from one end of the workpiece area to be profiled to another end of the workpiece area to be profiled with axial feed of the workpiece to the rolling tool or with axial feed of the rolling tool to the workpiece, and finally a chamfering rolling process at the other end of the workpiece area to be profiled for producing a profile run-in, in particular a threading chamfer on the workpiece with further radial feed of the rolling tool to the workpiece.
  • the process therefore provides three essential steps for rolling the finished workpiece profile, starting with the plunge rolling process at the end of the workpiece area to be profiled, followed by the push-through rolling process until the full profile length is reached on the workpiece and a final process step for rolling the profile inlet on the workpiece.
  • the method can be carried out in particular with the rolling machines described above.
  • the features which were disclosed with reference to the rolling machine are accordingly also to be seen as disclosed with reference to the method and vice versa.
  • At least one run-in region and one calibration region preferably also a relief region of the rolling disk mesh with the workpiece, wherein the calibration region forms at least a part of a central section of the profile and the relief region forms a profile run-out of the workpiece.
  • the tool and the workpiece are positioned in relation to one another in such a way that the transition from the calibration to the relief area is at the end of the workpiece profile length to be rolled.
  • the relief area is oriented towards the profile end of the workpiece.
  • the tool run-out is designed with the relief area in such a way that a profile run-out geometry of the workpiece is reproduced in the area where the relief area engages the workpiece.
  • the relief area is preferably designed with a chamfer, a radius or a combination of these, with the tool profile being created according to this contour.
  • the run-out length on the tool side can be limited by a required profile length on the workpiece and, if necessary, by a wave shoulder at the profile end of the workpiece.
  • the plunge rolling process is carried out with a feed movement directed radially towards the workpiece until the full profile depth is reached.
  • an axial feed rate is designed such that at least a calibration contact of each profile point on the workpiece formed by the inlet area with the calibration area occurs.
  • the task of the calibration area is the final shaping of the workpiece profile.
  • the length of the calibration area is preferably designed to suit the process and depending on the axial feed rate so that a defined number of calibration contacts with the workpiece is ensured, but at least one corresponding contact is made.
  • the length is also limited so that the rolling force that leads to unwanted changes in the cross-sectional shape, in particular roundness deviations, is not exceeded.
  • the tool is gently relieved of pressure from the workpiece by creating an increasing clearance between the tool and the workpiece by means of the relief area between the calibration profile that has fully penetrated the tool and the end of the run-out.
  • the push-through rolling process ends when the transition between the calibration area and the relief area has reached the workpiece profile beginning of the profile length to be rolled.
  • the relief area of the rolling disk and the workpiece are positioned relative to each other so that the geometry provided within the tool outlet, for example a profile lowered along a chamfer, is located on the workpiece along the profile inlet to be rolled.
  • the rolling of the profile inlet takes place with a movement directed radially towards the workpiece.
  • the relief area of the rolling machine meshes with the workpiece and forms the profile inlet of the workpiece. This advantageously allows one and the same tool to form a profile inlet that facilitates assembly, e.g. a threading chamfer, e.g. in gear profiles, and at the same time a run-out radius at the profile end of the workpiece.
  • a complete profile length in particular a complete toothing length of the spline of the workpiece, can be wider than a width of a rolling disk of the rolling tool forming the profile.
  • the method can also provide for the shaft- or hollow-shaft-shaped workpiece to have a shaft shoulder adjacent to the profiled area and for the plunge-rolling process to be carried out directly below the shaft shoulder.
  • the shaft shoulder is characterized by a diameter that is larger than the profiled area.
  • the method described above can also be referred to as a backward push-through rolling method. This is made possible by pushing the tools from the profile outlet in the direction of the profile inlet, i.e. opposite to the conventional push-through process.
  • the penetration takes place, for example, below a shaft shoulder or a shaft collar on the workpiece.
  • a shaft- or hollow shaft-shaped workpiece with a shaft shoulder is disclosed and with a warping-free longitudinal profile, in particular a spline, next to the shaft shoulder.
  • the warping-free longitudinal profile comprises a profile outlet adjacent to the shaft shoulder, a central section adjoining the profile outlet and a profile inlet connected to the middle section and away from the shaft shoulder.
  • the profile inlet is provided with a threading chamfer and the profile outlet is provided with a profile flattening.
  • the chamfering of the profile e.g. of the gearing on the workpiece, is called the threading chamfer.
  • the threading chamfer is used, for example, to improve the ability to plug together, for example with external splines of gear wheels or shafts that are inserted into a hub with opposing teeth.
  • the profiled section and the adjacent corrugated shoulder are made from one piece and the profile run-out is formed at a distance from the corrugated shoulder of less than 3 mm, preferably less than 2 mm, further preferably between 0.5 mm and 1 mm, up to the corrugated shoulder.
  • the threading chamfer and the profile flattening can be designed to be similar at least in sections, for example with the same angle in relation to the central section or with a similar radius. Since the relief area is also used to form the profile run-out on the workpiece in the method according to the invention, the threading chamfer and the profile flattening on the workpiece are designed to be similar at least in sections.
  • the rolled profile run-out follows the shape of the relief area immediately adjacent to the calibration area of the rolling tool until they are no longer in engagement.
  • a specific contour area within the relief area can be selected which is to be the shaping area.
  • free of warping refers to a completely continuous area without any warping. Without carrying out a push-through rolling process, particularly in the case of long, longitudinal hollow profiles, and long wave profiles, no warping-free profiles are created, since with each new approach, with axial displacement of the tool, a displacement into an area that has already been rolled takes place. In order to be warping-free, the process must be carried out without warping and requires a push-through in the sense of the present invention.
  • the length of the warping-free longitudinal profile is not limited by the dimensions of the profile area on the rolling disk(s) and can therefore be greater than 10 cm, greater than 20 cm, greater than 50 cm or even greater than 1 m.
  • the warping-free longitudinal profile can therefore also be formed on workpieces where plunge rolling without axial displacement is not possible due to the rolling force that can no longer be applied by a typical machine or an inadmissible change in cross-section.
  • the middle section is calibrated and has a profile cross-section that is the same over its length. This is achieved by designing the axial feed rate during the manufacture of the shaft- or hollow shaft-shaped workpiece using the backward push-through rolling process so that at least one calibration contact of each profile point on the workpiece formed by the inlet area with the calibration area occurs.
  • a system is disclosed with one of the previously described rolling machines for rolling a longitudinal profile and a shaft- or hollow shaft-shaped workpiece, which can in particular be designed as previously described.
  • the design of the rolling disk areas depends on the process, workpiece and tool.
  • the length of the relief area is preferably selected so that a specified distance between the fully developed profile and any adjacent shaft shoulder is maintained.
  • the length of the calibration area is preferably selected so that at least one calibration contact occurs with the axial feed used.
  • the remaining available tool width which can be changed by using other tool widths, defines the inlet length.
  • the inlet and calibration areas are designed to jointly exert a radial force during the plunge rolling process, which must not exceed a critical force that either represents the load limit of the machine or leads to an inadmissible change in the cross-section of the workpiece.
  • the invention is illustrated and described below using a round tool as an example. However, the invention can also be used with rolling bars as a rolling tool.
  • the invention is also illustrated by way of example using a rolling arrangement with two rolling tools or two rolling disks 1.
  • this is not limiting for the invention; for example, 1, 3, 4 or even more rolling tools can be provided, which act on the typically round workpiece 5 at different points.
  • Fig. 1 shows a rolling arrangement 10 of a rolling machine with two rolling tools arranged parallel and at a distance from one another, in particular round rolling tools, in a side sectional view, which define a clear width between them for receiving a workpiece 5.
  • a rolling disk 1 is shown with a profile arranged on it, of which a root circle and a tip circle can be seen.
  • the profile can be designed homogeneously or inhomogeneously over the circumference of the rolling tool. For example, incremental increases in the teeth over the circumference of the rolling tool are possible, as in DE 10 2007 039 959 A1 described. However, it is also possible that the profile is essentially the same over the circumference and that the tooth shape, height and/or size of the teeth change along the feed direction 8, as is described in more detail with reference to the other figures.
  • the teeth of the profile otherwise have a suitable shape; for example, they can be wedge-shaped, notched or involute in section. Reference is made to the knowledge of the person skilled in the art.
  • the workpiece 5 is mounted in a workpiece holder (not shown).
  • the workpiece 5 has a shaft shoulder 9.
  • Fig. 1 a positioning of the rolling disks 1 in relation to the workpiece 5 is shown, so that the transition between a calibration area 3 and a relief area 4 is located at the end of a workpiece profile length to be rolled.
  • the end of the relief area 4 can be positioned as close as desired below the shaft shoulder 9.
  • a first radial feed 11 of the rolling disks 1 to the workpiece 5 is shown, which defines a plunge rolling process.
  • the feed is variably regulated by CNC-controlled feed, and there is a successive feed up to the full profile depth.
  • the forming process is a combination of rolling, which in turn is a combination of sliding, rubbing and pressing, whereby in push rolling an additional directional component for the pressing is added.
  • the calibration area 3 and the relief area 4 in particular mesh with the workpiece 5.
  • the relief area 4 can in principle be designed quite freely and can be defined in such a way that the run-out profile 6 of the workpiece 5 is designed as desired.
  • Fig. 3 shows the rolling arrangement 10 at a later stage of the backward push rolling process.
  • the workpiece 5 was pushed through the rolling tools in the axial feed direction 8 via a CNC control, whereby the feed direction 8 coincides with the main axes of the rolling tools as an example but not as a limitation for the invention.
  • the feed is created by a relative movement between the workpiece 5 and the rolling tools, e.g. by displacement of the workpiece 5 relative to stationary rolling tools, or by displacement of the rolling tools relative to the stationary workpiece 5.
  • the feed can also take place at a continuous or variable speed.
  • the feed speed is set so that at least one calibration contact of each profile point on the workpiece is made with the calibration area 3. This ensures that the middle section is calibrated and has a profile cross-section that is the same over its length.
  • Fig. 4 The final chamfering rolling process is shown.
  • a further radial feed is carried out at the other end of the workpiece area to be profiled. 11 of the rolling tool to the workpiece 5.
  • the relief area 4 of the rolling machine meshes with the workpiece 5 at this point and forms the profile inlet 7.
  • the profile inlet 7 with the threading chamfer can be designed at least in sections in the same way as the profile outlet 6 with the profile flattening.
  • the threading chamfer and the profile flattening can have the same angle in relation to the middle section of the profile or a similar radius.
  • both the profile outlet 6 and the profile inlet 7 are designed with the same tool.
  • the undercut 13 shown is smaller than 3 mm, smaller than 2 mm or between 0.5 and 1 mm or not present at all if the groove was made with the rolling disks 4 directly below the shaft shoulder 9.
  • the threading bevel on the right can in principle be freely designed. It can be linear, as shown.
  • the threading bevel can have a radius or steps or can also be designed in the form of a double bevel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
EP23179424.9A 2023-06-15 2023-06-15 Laminoir, système et procédé de laminage d'un profil orienté longitudinalement Pending EP4477334A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP23179424.9A EP4477334A1 (fr) 2023-06-15 2023-06-15 Laminoir, système et procédé de laminage d'un profil orienté longitudinalement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23179424.9A EP4477334A1 (fr) 2023-06-15 2023-06-15 Laminoir, système et procédé de laminage d'un profil orienté longitudinalement

Publications (1)

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EP4477334A1 true EP4477334A1 (fr) 2024-12-18

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE308992C (fr) * 1917-09-11 1918-11-07
US1558086A (en) * 1922-12-23 1925-10-20 Charles O Gustavsen Machine for rolling gears
DE803232C (de) 1951-04-02 1951-04-02 Schoppe & Faeser Feinmechanik Vorrichtung zum Herstellen von Zahnraedern und verzahnten Teilen nach dem Warmrollverfahren
DE1013612B (de) 1953-03-12 1957-08-14 Pee Wee Maschinen Und Appbau I Einrichtung zum Kaltwalzen von achsparallelen Profilen, z.B. Verzahnungen
US2819632A (en) * 1955-06-27 1958-01-14 Reed Rolled Thread Die Co Device for rolling teeth
DE1073996B (fr) * 1958-01-29 1960-01-28
US2934980A (en) * 1955-11-11 1960-05-03 Grob Theodore Metal rolling machine
US4712408A (en) * 1985-09-23 1987-12-15 Anderson-Cook, Inc. Coarse pitch spline rolling
EP1270127B1 (fr) 2001-06-21 2004-06-09 The Gleason Works Outil de chanfreinage et d'ébavurage des extrémités frontales de dents des roues dentées
DE102007039959A1 (de) 2007-08-23 2009-02-26 Profiroll Technologies Gmbh Verfahren und Profilwalzmaschine zum Kaltwalzen von längsgerichteten Verzahnungen und Profilen bei langen wellenförmigen Werkstücken
EP2181783A1 (fr) * 2008-11-03 2010-05-05 Südsta AG Tige cannelée avec rebord d'extrêmité roulé et son procédé de fabrication
WO2019020619A1 (fr) * 2017-07-26 2019-01-31 Mag Ias Gmbh Procédé et dispositif pour la fabrication d'une denture sur une pièce cylindrique
KR20190028853A (ko) * 2017-09-11 2019-03-20 일륭기공(주) 샤프트 조인트 제조방법
WO2021156355A1 (fr) * 2020-02-07 2021-08-12 Profiroll Technologies Gmbh Outil de laminage et procédé de laminage d'un profilé

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE308992C (fr) * 1917-09-11 1918-11-07
US1558086A (en) * 1922-12-23 1925-10-20 Charles O Gustavsen Machine for rolling gears
DE803232C (de) 1951-04-02 1951-04-02 Schoppe & Faeser Feinmechanik Vorrichtung zum Herstellen von Zahnraedern und verzahnten Teilen nach dem Warmrollverfahren
DE1013612B (de) 1953-03-12 1957-08-14 Pee Wee Maschinen Und Appbau I Einrichtung zum Kaltwalzen von achsparallelen Profilen, z.B. Verzahnungen
US2819632A (en) * 1955-06-27 1958-01-14 Reed Rolled Thread Die Co Device for rolling teeth
US2934980A (en) * 1955-11-11 1960-05-03 Grob Theodore Metal rolling machine
DE1073996B (fr) * 1958-01-29 1960-01-28
US4712408A (en) * 1985-09-23 1987-12-15 Anderson-Cook, Inc. Coarse pitch spline rolling
EP1270127B1 (fr) 2001-06-21 2004-06-09 The Gleason Works Outil de chanfreinage et d'ébavurage des extrémités frontales de dents des roues dentées
DE102007039959A1 (de) 2007-08-23 2009-02-26 Profiroll Technologies Gmbh Verfahren und Profilwalzmaschine zum Kaltwalzen von längsgerichteten Verzahnungen und Profilen bei langen wellenförmigen Werkstücken
EP2181783A1 (fr) * 2008-11-03 2010-05-05 Südsta AG Tige cannelée avec rebord d'extrêmité roulé et son procédé de fabrication
WO2019020619A1 (fr) * 2017-07-26 2019-01-31 Mag Ias Gmbh Procédé et dispositif pour la fabrication d'une denture sur une pièce cylindrique
KR20190028853A (ko) * 2017-09-11 2019-03-20 일륭기공(주) 샤프트 조인트 제조방법
WO2021156355A1 (fr) * 2020-02-07 2021-08-12 Profiroll Technologies Gmbh Outil de laminage et procédé de laminage d'un profilé
EP4100186A1 (fr) 2020-02-07 2022-12-14 Profiroll Technologies GmbH Outil de laminage et procédé de laminage d'un profilé

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