WO2003013758A1 - Outil, machine et procede de fromage a froid perfectionnes - Google Patents
Outil, machine et procede de fromage a froid perfectionnes Download PDFInfo
- Publication number
- WO2003013758A1 WO2003013758A1 PCT/FR2002/002821 FR0202821W WO03013758A1 WO 2003013758 A1 WO2003013758 A1 WO 2003013758A1 FR 0202821 W FR0202821 W FR 0202821W WO 03013758 A1 WO03013758 A1 WO 03013758A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- zone
- tool
- teeth
- penetration
- reference axis
- Prior art date
Links
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
- B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
- B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
- B21H7/187—Rolling helical or rectilinear grooves
-
- 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
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/04—Making by means of profiled-rolls or 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
- 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
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/04—Making by means of profiled-rolls or die rolls
- B21H3/042—Thread-rolling heads
-
- 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
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
-
- 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
- B21H5/005—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S72/00—Metal deforming
- Y10S72/703—Knurling
Definitions
- the invention relates to tools for forming, by revolution, parts from metal blanks, cold, in particular for forming grooves, or knurling.
- Cold forming means a deformation of the metal of the blank at room temperature or at mid-heat (up to a temperature of 300 to 500 ° C. depending on the metal of the blank), below its temperature. of fusion.
- penetration a first step in which the blank comes into engagement with at least one forming tool (generally two).
- calibration a second step, in which the blank is finally calibrated to the dimensions desired for the formed part.
- the blank is moved in relative rotation relative to the tool, while maintaining the blank under pressure against the tool.
- the useful surface of the tool comprises a plurality of teeth, of trapezoidal or prismatic shape, with straight or curvilinear sides, and capable of forming grooves or other desired part profile.
- the teeth of the tool are regularly spaced on a surface of the tool called "tooth bottom". They can be of different heights from the bottom of the tooth.
- the tooth bottom itself, can be of variable height with respect to a forming axis or reference plane, on the tool, which usually defines the positioning and / or displacement of the tool relative to the blank to be formed.
- the penetration zone comprises teeth, of increasing height relative to the forming reference axis.
- the Applicant has observed frequent wear of the first teeth.
- the present invention improves the situation.
- the invention relates in particular to a cold forming tool, intended to form a part by revolution substantially without axial displacement, that is to say that a blank is rotated and formed by the tool without it being s 'accompanied by a helical movement of the blank, which would have a significant axial component.
- the forming tool comprises teeth regularly spaced on a tooth bottom, defining, with respect to a forming reference axis that the tool comprises, at least one penetration zone followed by a calibration zone.
- the teeth of the tool from the penetration zone to the calibration zone, are of substantially increasing height, while the tooth bottom is at decreasing distance from the forming reference axis.
- the growth of the height of the teeth is faster than the decrease of the distance from the tooth bottom to the forming reference axis.
- the tops of the teeth are separated by a substantially increasing distance from the forming reference axis, from the start of the penetration zone to the start of the calibration zone.
- the tool comprises, at the start of the penetration zone, a plate wider than the teeth.
- the term “plate” is intended to mean a surface which marks the start of the penetration zone and which can be flat, in particular for a tool of the rack type, or else curved, in particular for a tool of the wheel type.
- the tooth base comprises this plate and the first teeth of the penetration zone follow the plate.
- the distance between the plate and the forming reference axis is substantially equal to an average distance of the teeth, halfway up, relative to the forming reference axis.
- the teeth, halfway up, and the forming reference axis are separated by a substantially constant distance, at least in the penetration zone.
- the tooth base is at maximum distance from the forming reference axis at the start of the penetration zone.
- the distance from the tooth bottom to the forming axis varies substantially continuously, at least from the start of the penetration area (A) to the start of the calibration area (B).
- the height of the teeth varies substantially continuously, at least in the penetration zone.
- the tool further comprises a starting zone which precedes the penetration zone and comprising a bottom line of increasing distance relative to the forming reference axis.
- the initiation zone is formed substantially by an input chamfer and it immediately precedes the penetration zone, so that the bottom line and the forming reference axis, at the end of the initiation zone , on the one hand, and the tooth bottom and the forming reference axis, at the start of the penetration zone, on the other hand, are separated by respective substantially equal distances.
- the height of the teeth is substantially constant, in the calibration zone.
- the distance from the tooth bottom to the forming reference axis is substantially constant, in the calibration zone.
- the teeth at least in said penetration zone, are of substantially trapezoidal shapes with straight or curvilinear sides.
- the calibration zone is followed by a decompression zone, in which, the teeth being in principle of constant profile, the distance between a given point of the profile of each tooth and the reference axis of forming is appreciably decreasing, which one can more simply express here in the form: the distance between the teeth and the axis of reference of forming is appreciably decreasing.
- the tool comprises a substantially planar useful surface, of the rack type, while the forming reference is substantially in the same direction as the large dimension of the rack.
- the forming reference, on a tool with a useful surface of the rack type can also be defined by a support plane of the rack.
- the tool comprises a substantially cylindrical useful surface, of the wheel type, while the forming reference axis substantially coincides with the axis of rotation of the wheel.
- the present invention also relates to a machine for cold forming which comprises at least one tool according to the invention.
- the machine comprises two tools, as well as means for moving the tools relative to one another, while keeping the useful surfaces of the tools facing each other.
- the machine advantageously comprises means for relative displacement of the tools, in translation and in opposite directions, along their respective reference axes.
- the machine advantageously comprises means for relative displacement of the tools, in rotation and in the same direction.
- the means for relative movement of the tools are arranged to be activated in accordance, so that the zones of penetration and calibration of one tool respectively coincide with the penetration and calibration zones of the other tool.
- the machine further comprises secondary means for moving the tools away from one another, and the secondary means are arranged to be activated at least after the calibration of the blank.
- the tool comprises a decompression zone in which the distance of the teeth, relative to the forming reference axis, is substantially decreasing.
- the present invention also relates to a process for cold forming a workpiece blank, comprising the following steps: a) providing at least one forming tool provided with a penetration zone, followed by a calibration zone, b) placing a blank to be formed under pressure against the tool, and c) relatively moving the blank relative to the tool, so that the blank comes into engagement with the penetration zone of the tool, until it calibration area, to form the blank.
- step a) provides a tool according to the invention and, in step c), the blank first comes into engagement with the start of the penetration zone of the tool.
- the tooth base of the tool comprises, at the start of the penetration zone, a plate that is wider than the teeth, and, in step c), the blank comes first in taken with this tray.
- the tool further comprises a starting zone which precedes the penetration zone and comprising a bottom line of increasing distance relative to the forming reference axis, and, in step b), the blank is positioned opposite the tool initiation area.
- step a) a second, homologous tool is provided, and, in step c), the blank is engaged against the beginnings of respective penetration zones of the tools.
- FIG. 1 schematically shows teeth for forming by revolution, cold, blanks of metal parts
- FIG. 2 schematically shows a tool of the prior art for cold forming (in the form of a toothed sector in the example shown);
- FIG. 3 schematically shows a tool according to the invention (in the form of a toothed sector in the example shown);
- FIG. 4 partially shows a machine with two forming tools, of the wheel type
- FIG. 5 partially shows a machine with two forming tools, rack type
- FIG. 6 schematically shows a tool according to the invention, of the rack or wheel type, in use
- FIG. 7 shows a forming tool of the wheel type, of the invention, according to a more detailed representation
- FIG. 7A is a detail view of the penetration area of the tool of Figure
- FIG. 7B is a detailed view of the calibration area of the tool of Figure 7;
- FIG. 7C is a detailed view of the decompression zone of the tool of Figure
- FIG. 8A and 8B illustrate an alternative embodiment of the teeth of the tool.
- the detailed description below and the drawings essentially contain elements of a certain nature. They can therefore not only serve to better understand the description, but also contribute to the definition of the invention, if necessary.
- a forming tool comprises teeth D, of variable height h, and regularly spaced apart by a pitch p on a bottom of tooth F.
- the bottom of tooth F s' extends over a substantially flat surface, for a tool of the rack type, or even over a substantially curved, convex surface, for a tool of the rotary, wheel type.
- the variation of the profile of the tooth bottom F is defined here with respect to the distance which separates it from a forming reference axis X.
- the forming reference axis X corresponds to the axis of rotation of the wheel.
- the tool is of the rack type. While, for a thumbwheel, the reference axis X is its axis of rotation, this one, for a rack in translation, is rejected in a plane at infinity.
- a forming reference a plane substantially parallel to the large dimension of the rack, or to its direction of movement.
- the profile of the tooth bottom F can also be defined with respect to the distance which separates it from a forming reference plane, this reference plane corresponding to a support plane of the rack (perpendicular to the plane of Figure 1 and including the X axis shown there).
- the teeth are of substantially trapezoidal shape.
- they may be of substantially prismatic shape, of triangular base.
- the teeth are of variable height h but remain substantially circumscribed in a trapezoid (shown in dotted lines), so that the pitch p between the teeth remains substantially constant and the angles of the flanks of the teeth remain substantially constant, relative to the bottom of tooth F.
- a "measurement” line is considered, passing substantially at mid-height of the calibration teeth. This line is extended in the penetration zone (at least), remaining at a substantially constant distance "v” from the axis or reference plane.
- tooth thickness the dimension "s" of each tooth along this line.
- this tooth thickness s is substantially constant in the penetration and calibration zones.
- the tool includes a first zone A called “penetration”, followed by a second zone B called “calibration”, as well as a third zone next C called “decompression”.
- the teeth D are of substantially constant height, regularly spaced on the bottom of the tooth F, the profile of which is defined by a substantially constant distance from the reference axis X (corresponding to the axis rotation of the toothed sector).
- the teeth D are of increasing height hp.
- the first tooth of the wheel is of height corresponding substantially to 50% of the height of the teeth D in the calibration zone B.
- the height of the teeth D remains substantially the same as the height of teeth in calibration area B.
- the tool profile therefore evolves radially to gradually penetrate the workpiece.
- the actual forming ends in the calibration area.
- the part finally formed has a profile homologous to that of the tool.
- the tool profile of the type represented in FIG. 2, for the formation of grooves has in particular the advantages of speed, of precision as for the state of the surface of the part (corresponding practically to the surface state of the tools same) savings in material since the external diameter of the finished part is, ultimately, greater than the diameter of the starting blank, as well as an increase in mechanical strength by work hardening phenomenon.
- two or more profiled tools engage against a blank to be shaped, between two diametrically opposite, or even circularly distributed, contact zones. These tools are in contact with the blank, in rotation, without sliding, and exert on the latter a progressive and deforming pressure to generate on the blank a profile combined with that of the tools.
- machines using cylindrical rollers with progressive profile machines using rectilinear tools (racks) with progressive profile, are used.
- the height of the teeth D remains substantially constant in the calibration zone B and the same applies to the distance which separates the tooth base F from the forming reference axis X, in the calibration zone B.
- the height of the teeth teeth D remains substantially constant in the decompression zone C, but the tooth base F is separated by a decreasing distance from the reference axis X, relative to the profile of the tooth base in the calibration zone B (line FC2 in dotted lines).
- the profile of the penetration zone A of the tool according to the invention is different from that of the prior art shown in FIG. 2.
- the height of the teeth D is appreciably increasing in the penetration zone A (profile of the apex of the teeth hp represented in dotted lines), while the bottom of the tooth F is separated by a decreasing distance from the axis forming reference X (compare to the distance separating the tooth base from the reference axis X in the calibration area B shown in dotted line FC1).
- the growth in the height of the teeth is faster (greater) than the decrease in the distance from the tooth bottom to the reference axis of forming.
- the curve hp passing through the tops of the teeth is therefore separated by an increasing distance from the forming reference axis X, from the start of the penetration area A to the start of the calibration area B.
- the present invention can be based on the definition of the height of the tooth, and the level of the tooth bottom, taken with respect to the axis or to the reference plane, or an element linked to these.
- the teeth are practically zero in height, but the tooth bottom F has a plate PL (or a convex curved surface) which immediately precedes the first teeth.
- the tooth base F is at maximum distance from the forming reference axis X at the start of the penetration zone A.
- the useful surfaces of the tools extend over limited angular ranges.
- these angular ranges are, in practice, larger, as will be seen below with reference to FIG. 7.
- the first teeth are more resistant, which makes it possible to ensure pressurization over a shorter area and thus better distribute the load over the following penetrating teeth.
- the life of the tools can thus be increased.
- the reduction in contact loss between the first teeth (due to the acceleration of pressurization) improves the quality of the division of the rolled parts.
- Document WO94 / 20238 discloses a tool, of the rack type, for the formation of gears, when cold, and whose profile begins with an increasing height of the gear teeth and a bottom of teeth of decreasing height.
- this start of the tool profile corresponds to both a penetration zone and a calibration zone, specific to gear forming.
- the teeth of the tool are defined to respect precise shapes and dimensions.
- the height of the teeth is, in this case, chosen both to penetrate the blank and in particular to calibrate the top and the bottom of the gear teeth to be formed.
- the flanks of the teeth must respect particular shapes and dimensions and the invention takes advantage of the height of the teeth in the penetration zone, gradually adapted to the minimum necessary for the displacement of the blank material.
- the first teeth of the tool have no particular calibration function for the bottom and the tooth tops.
- the tool of the present invention is profiled in such a way that the tooth bottom, in the penetration zone, does not substantially deform the blank and therefore does not participate in its deformation.
- the tool of the invention further comprises a primer zone AM whose profile is defined by a substantially increasing distance from the reference axis X and joins the tooth bottom of penetration zone A.
- the profile of the AM primer zone has the shape of a chamfer CH inlet, which is extended by the PL plate of the penetration zone A.
- the tool according to the invention can be directly used on one of the aforementioned machines, without modification thereof.
- the machine comprises, in the example, two tools 01 and 02, as well as means for the rotational movement of these tools, in the same direction, and around substantially parallel axes XI and X2, these axes defining the reference axes. respective forming tools.
- the machine comprises a support for the EB blank, so that it moves in rotation, in the opposite direction of the tools, around an axis substantially coplanar with the two axes of rotation XI and X2.
- the machine also comprises means for moving the two axes XI and X2 apart, which can be put into service before or during the process of forming the blank EB, as well as means for adjusting the agreement of the different zones of the tool. (penetration, calibration, decompression).
- FIG. 5 represents, according to the same principle of rotation of the blank EB, a machine comprising two tools 01 and 02, of the rack type, as well as means of translational movement along the axes XI and X2 of these tools .
- the axes XI and X2 are preferably parallel and correspond to the forming reference axes, the distance of which separates them from the useful surface of the tools makes it possible to define the profile of the tooth base of these tools.
- the machine here comprises means for moving the two axes XI and X2 apart.
- the respective zones of the tools are facing each other, as the tools move along their axes XI and X2, during the forming of the blank EB.
- Tool 01 is moved tangentially (arrow FI) relative to the blank EB, which is in contact, in pressure, against the useful surface of the tool Ol.
- the EB blank then adopts a rotational movement around its central axis.
- the surface of the blank EB first meets the entry chamfer CH in the starting zone of the tool 01, then the plate PL formed by the tooth bottom F in the beginning of the penetration zone A of the tool.
- the surface of the blank EB meets the first teeth D of the tool, of increasing height, while the bottom of tooth F is at decreasing distance from the forming reference axis (which can be materialized here by the arrow FI).
- the perimeter of the tool substantially comprises four zones:
- FIG. 7A - a penetration zone
- Figure 7B a calibration zone
- the penetration zone extends over an angular range of approximately 252 °.
- the calibration area extends over an angular area of 32 °.
- the decompression zone extends over an angular range of 16 °.
- a starting zone comprising an inlet chamfer CH, followed by a plate PL which the bottom of tooth F, in the beginning of the penetration zone.
- the teeth D are therefore of increasing height, while the tooth bottom is of decreasing distance relative to a forming reference axis (not shown).
- the teeth D are of trapezoidal shape, while in the calibration zone (FIG. 7B), the teeth are of substantially prismatic shape. (substantially triangular in a cross section of the teeth).
- the tooth bottom F, in the penetration zone is of substantially hollow trapezoidal shape.
- the profile of the tool is substantially continuous from the starting zone to the decompression zone.
- the distance from the tooth bottom to the forming axis varies substantially continuously and the height of the teeth also varies substantially continuously, at least in the region of penetration.
- the teeth are substantially of the same profile and are shown to scale in FIG. 7B.
- the tooth bottom is defined by the horizontal tangent t ( Figure 7B).
- the teeth keep the same height as in the calibration zone, but the tooth bottom F is separated by a decreasing distance from the reference axis X, which advantageously makes it possible to relax gradually the material of the formed part.
- the entry chamfer CH in the starting zone of the tool is immediately followed by a plate PL of the penetration zone presented by the tooth bottom F at the start of this penetration zone ( Figure 8A).
- the first teeth which follow the plate PL are then of increasing height, while the bottom of tooth F is of decreasing distance relative to a reference axis of forming in the tool (not shown here).
- the distance from the tooth bottom F to the forming reference axis decreases in proportions similar to the increase in the height of the teeth D in the penetration zone.
- the mid-height of the teeth in the penetration zone and up to the calibration zone (FIG. 8B) is at a substantially constant distance from the forming reference axis.
- the plate PL is separated by this same distance from the forming reference axis.
- the chamfer CH of the initiation zone and the plate PL define a continuous profile in the beginning of the zone of penetration, without abrupt variation of the height of the profile.
- FIG. 8B represents, to scale, the profile of the teeth D in the calibration zone. Referring to FIG. 7, a significant decrease in the distance separating the teeth from the forming reference axis is remarkable in the decompression zone C.
- the invention relates mainly to the profile of the penetration zone and that the tool according to the invention can be devoid of a decompression zone. Its useful surface ends, in this variant, with a calibration zone.
- FIG. 7B The dimensions referenced in FIG. 7B are given here by way of example and admit, of course, variations depending on the desired forming.
- the penetration zone begins with a plate PL.
- it can start with teeth of relatively small height, for example less than 10% of the height of the teeth in the calibration zone.
- the starting zone comprising the CH entry chamfer can be eliminated in simplified versions of tools.
- the teeth are of substantially trapezoidal shape with straight sides. Alternatively, their sides can be curvilinear.
- the teeth are of profile suitable for printing grooves in the parts to be formed.
- the present invention admits other variants as to the precise profile of the forming teeth.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Forging (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02779617A EP1439925A1 (fr) | 2001-08-07 | 2002-08-07 | Outil, machine et procede de fromage a froid |
US10/485,251 US7040131B2 (en) | 2001-08-07 | 2002-08-07 | Cold forming tool, machine and method |
KR10-2004-7001934A KR20040051583A (ko) | 2001-08-07 | 2002-08-07 | 냉간 성형 공구, 가공기 및 그 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0110551 | 2001-08-07 | ||
FR0110551A FR2828419B1 (fr) | 2001-08-07 | 2001-08-07 | Outil, machine et procede de formage a froid, perfectionnes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003013758A1 true WO2003013758A1 (fr) | 2003-02-20 |
Family
ID=8866349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/002821 WO2003013758A1 (fr) | 2001-08-07 | 2002-08-07 | Outil, machine et procede de fromage a froid perfectionnes |
Country Status (5)
Country | Link |
---|---|
US (1) | US7040131B2 (fr) |
EP (1) | EP1439925A1 (fr) |
KR (1) | KR20040051583A (fr) |
FR (1) | FR2828419B1 (fr) |
WO (1) | WO2003013758A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112005003630B4 (de) * | 2005-07-21 | 2013-04-11 | Gkn Driveline International Gmbh | Ziehmatrize, Verzahnungswalzwerkzeug und Verfahren zur Herstellung einer Verzahnung auf einem Bauteil einer Welle-Naben-Verbindung |
JP5401667B2 (ja) * | 2007-10-12 | 2014-01-29 | 有希 安藤 | 転造ネジ軸の製造方法 |
DE102011003252A1 (de) * | 2011-01-27 | 2012-08-02 | Hilti Aktiengesellschaft | Walzbacke |
CN102814435B (zh) * | 2012-08-24 | 2014-07-23 | 西安交通大学 | 一种中高频感应加热滚轧成形花键轴的方法 |
JP6307877B2 (ja) | 2013-12-27 | 2018-04-11 | アイシン精機株式会社 | 転造装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2886990A (en) * | 1954-08-30 | 1959-05-19 | Nat Broach & Mach | Apparatus for rolling gears |
CH376875A (de) * | 1959-08-08 | 1964-04-30 | Grob Ernst | Formwalze für Gewindewalzmaschinen |
DE2424033A1 (de) * | 1973-02-02 | 1975-11-27 | Ex Cell O Corp | Werkzeug zur herstellung von zahnprofilen |
US3979859A (en) * | 1974-02-19 | 1976-09-14 | Ex-Cell-O Corporation | Method of making tooth generating tool |
JPS62144835A (ja) * | 1985-12-20 | 1987-06-29 | Nachi Fujikoshi Corp | ころがり径の異なるねじとセレ−シヨンの同時転造方法及び工具 |
WO1994020238A1 (fr) * | 1993-03-04 | 1994-09-15 | Zf Friedrichshafen Ag | Outil et procede de realisation sans enlevement de copeaux de la denture exterieure de roue d'engrenage |
US5659955A (en) * | 1994-01-21 | 1997-08-26 | Plamper; Gerhard | Method of making powder metal helical gears |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2937547A (en) * | 1953-08-04 | 1960-05-24 | Landis Machine Co | Method of rolling workpieces |
US3201964A (en) * | 1963-01-21 | 1965-08-24 | Detroit Tap & Tool Company | Method and apparatus for rolling threads |
US3651678A (en) * | 1968-11-06 | 1972-03-28 | Reed Rolled Thread Die Co | Truncated through feeding thread rolling die |
US3626733A (en) * | 1969-03-26 | 1971-12-14 | Reed Rolled Thread Die Co | Truncated through feed thread rolling die for rolling flat rooted threads |
US4362045A (en) * | 1980-10-10 | 1982-12-07 | Ex-Cell-O Corporation | Tooth forming tools |
US4610154A (en) * | 1982-02-10 | 1986-09-09 | Ex-Cell-O Corporation | Tooth forming tool with toothless clamping section for splining tubular elements |
US4862718A (en) * | 1988-07-14 | 1989-09-05 | Sps Technologies, Inc. | Thread rolling dies |
CN2376875Y (zh) | 1997-07-18 | 2000-05-10 | 王心祖 | 多规格组合式医用牙科探针 |
US6779270B2 (en) * | 1999-07-13 | 2004-08-24 | The Penn States Research Foundation | Full form roll finishing technique |
US6324887B1 (en) * | 2000-05-02 | 2001-12-04 | Lake Erie Screw Corp. | Thread rolling dies and process for forming same |
-
2001
- 2001-08-07 FR FR0110551A patent/FR2828419B1/fr not_active Expired - Fee Related
-
2002
- 2002-08-07 WO PCT/FR2002/002821 patent/WO2003013758A1/fr not_active Application Discontinuation
- 2002-08-07 EP EP02779617A patent/EP1439925A1/fr not_active Withdrawn
- 2002-08-07 US US10/485,251 patent/US7040131B2/en not_active Expired - Fee Related
- 2002-08-07 KR KR10-2004-7001934A patent/KR20040051583A/ko not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2886990A (en) * | 1954-08-30 | 1959-05-19 | Nat Broach & Mach | Apparatus for rolling gears |
CH376875A (de) * | 1959-08-08 | 1964-04-30 | Grob Ernst | Formwalze für Gewindewalzmaschinen |
DE2424033A1 (de) * | 1973-02-02 | 1975-11-27 | Ex Cell O Corp | Werkzeug zur herstellung von zahnprofilen |
US3979859A (en) * | 1974-02-19 | 1976-09-14 | Ex-Cell-O Corporation | Method of making tooth generating tool |
JPS62144835A (ja) * | 1985-12-20 | 1987-06-29 | Nachi Fujikoshi Corp | ころがり径の異なるねじとセレ−シヨンの同時転造方法及び工具 |
WO1994020238A1 (fr) * | 1993-03-04 | 1994-09-15 | Zf Friedrichshafen Ag | Outil et procede de realisation sans enlevement de copeaux de la denture exterieure de roue d'engrenage |
US5659955A (en) * | 1994-01-21 | 1997-08-26 | Plamper; Gerhard | Method of making powder metal helical gears |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 011, no. 372 (M - 648) 4 December 1987 (1987-12-04) * |
Also Published As
Publication number | Publication date |
---|---|
KR20040051583A (ko) | 2004-06-18 |
US7040131B2 (en) | 2006-05-09 |
EP1439925A1 (fr) | 2004-07-28 |
FR2828419B1 (fr) | 2003-10-24 |
US20040173000A1 (en) | 2004-09-09 |
FR2828419A1 (fr) | 2003-02-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1162376B1 (fr) | Organe de fixation à empreinte d'extrémité dans une partie filetée | |
FR2938054A1 (fr) | Procede et calibre de controle d | |
CH688579A5 (fr) | Article manufacturé comportant un dispositif d'entra»nement. | |
WO2013038072A1 (fr) | Ensemble pour la réalisation d'un joint filete pour le forage et l'exploitation des puits d'hydrocarbures et joint filete resultant | |
FR2541409A1 (fr) | Poulies a gorges trapezoidales multiples faites de tole et leur procede de fabrication | |
FR2671151A1 (fr) | Joint homocinetique muni de surfaces d'appui sur la cage de dimensions reduites. | |
CA2514106A1 (fr) | Procede de fabrication de pieces constitutives d'une aube creuse par laminage | |
FR2567779A1 (fr) | Procede de fabrication d'un organe d'obturation pour un obturateur coulissant de cuve metallurgique | |
EP0331539B1 (fr) | Procédé de fabrication d'ébauches forgées en barre par refoulage, notamment pour aubes de compresseur et outillage de mise en oeuvre | |
FR2538729A1 (fr) | Procede de fabrication d'un element de cremaillere | |
WO2003013758A1 (fr) | Outil, machine et procede de fromage a froid perfectionnes | |
WO2004020871A2 (fr) | Actionneur mecanique incluant un ecrou a cames helicoidales | |
US8235771B2 (en) | Method and apparatus for honing a workpiece and a workpiece | |
FR2548933A1 (fr) | Corps en metal fritte muni d'au moins une denture | |
EP0281588B1 (fr) | Dent pour l'accouplement par denture de deux solides, denture en resultant et engrenages en faisant application | |
EP3083094A1 (fr) | Procede d'emboutissage de pieces presentant des angles saillants a faible rayon | |
FR2937568A1 (fr) | Procede de fabrication d'une piece de boulonnerie, outil pour la mise en oeuvre du procede, dispositif de vissage et de devissage d'une telle piece de boulonnerie | |
FR2491790A1 (fr) | Ensemble d'outils de formage de dents, tels que dents de cannelures ou d'engrenages | |
EP1473503B1 (fr) | Conduit souple à ondulations équipé d'au moins un anneau métallique de maintien et son procédé de fabrication. | |
WO2003092941A1 (fr) | Procede de rainurage de l'alesage d'un tube et porte outil de rainurage | |
EP0605332B1 (fr) | Procédé de réalisation d'éléments rotatifs et, particulièrement, de poulies à gorges multiples | |
EP3010675B1 (fr) | Ensemble de plaques obtenues par decoupe d'un bloc en materiau metallique ou composite | |
FR2763267A1 (fr) | Procede de fabrication d'engrenages sur un arbre creux de boite de vitesses | |
EP0916421B1 (fr) | Usinage d'une tôle sans enlévement de matiére, par écrasement | |
EP4005696B1 (fr) | Équipement et procédé de forgeage d'une denture d'engrenage sur un semi-produit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DE DM DZ EC EE ES FI GB GD GE GH HR HU ID IL IN IS JP KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NO NZ OM PH PL PT RU SD SE SG SI SK SL TJ TM TN TR TZ UA UG US UZ VN YU ZA ZM Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 10485251 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020047001934 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002779617 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: 2002779617 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: JP |