EP0073985A2 - Procédé de forgeage - Google Patents
Procédé de forgeage Download PDFInfo
- Publication number
- EP0073985A2 EP0073985A2 EP82107610A EP82107610A EP0073985A2 EP 0073985 A2 EP0073985 A2 EP 0073985A2 EP 82107610 A EP82107610 A EP 82107610A EP 82107610 A EP82107610 A EP 82107610A EP 0073985 A2 EP0073985 A2 EP 0073985A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling
- head
- die
- forging
- faces
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005242 forging Methods 0.000 title claims abstract description 20
- 230000008878 coupling Effects 0.000 claims abstract description 56
- 238000010168 coupling process Methods 0.000 claims abstract description 56
- 238000005859 coupling reaction Methods 0.000 claims abstract description 56
- 238000005259 measurement Methods 0.000 claims abstract description 3
- 210000000078 claw Anatomy 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/12—Forming profiles on internal or external surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/762—Coupling members for conveying mechanical motion, e.g. universal joints
Definitions
- the invention relates to a method for the precision forging of forgings with at least one coupling surface serving for power transmission in cooperation with a counterpart, in particular claws or pockets having coupling parts or synchronizing parts with short teeth for manual transmissions, in which the parts are first forged and then cold calibrated .
- the invention relates to workpieces produced by the above method, namely coupling bodies for dog clutches, synchronous coupling bodies for manual transmissions or the like, coupling parts having short teeth or claws or pockets, and also ratchet bodies, gear; lenkwellenkör he p etc.
- the coupling claws or teeth have been adopted Form short gears with trailing flanks.
- the present invention is based on the object of designing a method of the type mentioned at the outset in such a way that workpieces, in particular coupling parts, can be produced with a negative backing of the load-transmitting coupling surface.
- This object is achieved in that, during the forging, parallel to the impact direction coupling surfaces with the adjacent head surfaces increasing allowance at least in the respective common edge of this Surfaces adjoining the edge area are produced and that during the cold calibration the head surfaces are forged precisely, in such a way that each finished coupling surface runs obliquely towards the head surface widened by the calibration.
- the backing of the clutch surfaces up to about 5 degrees.
- the calibration stroke with free, i.e. H. without any support from the die shape, deformation of the coupling surfaces until reaching an inclined position in the sense of the desired undercut.
- the material flow is first triggered by the measurement in the edge area before the pressure is distributed over the entire head surface. In this way, any convex shape of the coupling surfaces can be reliably avoided.
- the opposing tooth flanks of a tooth or claw forming the coupling surfaces are each negatively positioned in such a way that the tooth gaps widen towards the tooth base.
- the im Back area opposite surface can be formed straight or even with a positive position.
- the forged parts are only supported by the die during cold calibration between two die surfaces that are parallel to the direction of impact and run transversely to the coupling surfaces.
- the widening of the tooth tip surfaces is limited by supporting surfaces of the die arranged at a corresponding distance from the preform. It is sufficient if the support surfaces are only available within the radius described by the head surfaces.
- the dimensioning of the allowance is decisive for the angle reached by the positioning, as well as the flat shape of the coupling surface.
- the oversize volume per coupling surface is dimensioned according to its selected rear position or inclined position with respect to the head surface.
- the distribution of the allowance has a maximum in or near the coupling surface along a section running transversely to the coupling surface.
- the distribution of the allowance describes a course which decreases in a straight line or concave fashion in the edge region of the head surface adjoining the coupling surface.
- the preferred application of the method according to the invention relates to claw couplings, the load-transmitting flanks of the claws or pockets of the two interacting coupling parts corresponding to the coupling surfaces, with every or every second flank being placed behind.
- the method according to the invention can be applied to the short teeth known per se with pointed teeth, the undercuts previously produced by subsequent rolling or eroding being produced by the method according to the invention. This is not only suitable for producing undercuts on claws or pockets, but also on involute gears, both external and internal gears.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Measurement Of Force In General (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82107610T ATE11647T1 (de) | 1981-09-03 | 1982-08-20 | Schmiedeverfahren. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3134857A DE3134857C2 (de) | 1981-09-03 | 1981-09-03 | Verfahren zum Herstellen von Kupplungsteilen |
DE3134857 | 1981-09-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0073985A2 true EP0073985A2 (fr) | 1983-03-16 |
EP0073985A3 EP0073985A3 (en) | 1983-08-24 |
EP0073985B1 EP0073985B1 (fr) | 1985-02-06 |
Family
ID=6140754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82107610A Expired EP0073985B1 (fr) | 1981-09-03 | 1982-08-20 | Procédé de forgeage |
Country Status (7)
Country | Link |
---|---|
US (1) | US5870923A (fr) |
EP (1) | EP0073985B1 (fr) |
JP (1) | JPS5841645A (fr) |
AT (1) | ATE11647T1 (fr) |
CA (1) | CA1179871A (fr) |
DE (2) | DE3134857C2 (fr) |
GB (1) | GB2106435B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19624772A1 (de) * | 1996-06-21 | 1998-01-02 | Blw Praezisionsschmiede Gmbh | Klauenverzahnung für Schaltgetriebe oder dergleichen |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3134857C2 (de) * | 1981-09-03 | 1985-11-21 | Bayerisches Leichtmetallwerk Graf Blücher von Wahlstatt GmbH & Co KG, 8000 München | Verfahren zum Herstellen von Kupplungsteilen |
DE3427156C2 (de) * | 1984-07-24 | 1986-07-17 | Bayerisches Leichtmetallwerk Graf Blücher von Wahlstatt GmbH & Co KG, 8000 München | Verfahren zum Herstellen eines Synchronteils mit hinterschnittenen Zähnen |
DE19624774C2 (de) * | 1996-06-21 | 2000-06-08 | Blw Praezisionsschmiede Gmbh | Kupplungsverzahnung in einem Schaltgetriebe |
US7484611B2 (en) * | 2004-05-27 | 2009-02-03 | O-Oka Corporation | Speed change gear with dog clutch pawl, and method and device of manufacturing the same |
JP4502939B2 (ja) * | 2005-11-22 | 2010-07-14 | 本田技研工業株式会社 | ドッグクラッチ |
DE102011088864A1 (de) * | 2011-12-16 | 2013-06-20 | Cdp Bharat Forge Gmbh | Kaltkalibrierpresse für Monoblockschalträder mit einbaufertiger Kupplungsverzahnung |
US9120143B2 (en) * | 2013-01-15 | 2015-09-01 | National Machinery Llc | Cut-off end surface improvement |
CN114921683B (zh) * | 2022-05-29 | 2023-03-28 | 浙江倍泽新材料科技有限公司 | 一种钟形罩用自加压钢铜双金属及其节能型制造方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2448473A1 (de) * | 1973-11-01 | 1975-06-12 | Fahrzeuggetriebewerk Wilhelm F | Verfahren und vorrichtung zum spanlosen formen der stirnkontur, insbes. bei kupplungsverzahnungen |
DE2502306A1 (de) * | 1974-01-21 | 1975-07-24 | Politechnika Warszawska | Verfahren und vorrichtung zum formen der aussenflaeche von gegenstaenden aus verformbarem material |
DE2655205A1 (de) * | 1975-12-08 | 1977-06-30 | Marinus Johannes Smits | Verfahren zur herstellung von verzahnungen und zum durchfuehren dieses verfahrens geeignete matrize |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US874448A (en) * | 1907-12-24 | John R Keim Mills Inc | Method of making gear-wheels. | |
US600994A (en) * | 1898-03-22 | James w | ||
DE1250230B (fr) * | 1967-09-14 | |||
DE356109C (de) * | 1922-07-17 | Hermann Budde | Verfahren zur Herstellung von Grundringen fuer Vollgummireifen mit unterschnittenen flachen Nuten | |
US925028A (en) * | 1901-07-16 | 1909-06-15 | American Typographic Corp | Method of making ribbed plates. |
US822983A (en) * | 1904-11-14 | 1906-06-12 | Richard Rhoda | Valve. |
US1543608A (en) * | 1924-08-28 | 1925-06-23 | Leidecker Tool Company | Method of making spiral auger stems, bits, and substitutes |
US1597198A (en) * | 1925-09-15 | 1926-08-24 | Howell Edward Neverson | Automatic clutch-disconnecting means |
US1866315A (en) * | 1930-07-18 | 1932-07-05 | M B Skinner Co | Method of making a cutter |
US2843927A (en) * | 1955-03-03 | 1958-07-22 | Arthur J Stock | Method of manufacture of gear teeth |
GB1054317A (fr) * | 1962-12-19 | |||
CH415247A (de) * | 1963-04-24 | 1966-06-15 | Bayerisches Leichtmetallwerk K | Verfahren und Einrichtung zur Erzeugung von vorzugsweise mittigen Tragbildern an Zahnflanken konischer Zahnräder |
DE1265520B (de) * | 1964-03-25 | 1968-04-04 | Elmeg | Hydrodynamischer Drehmomentwandler |
DE1483707B2 (de) * | 1965-07-20 | 1969-11-06 | Sintermetallwerk Krebsöge GmbH, 5608 Krebsöge | Verfahren und Vorrichtung zum Entgraten von Sinterformteilen |
US3498100A (en) * | 1968-02-13 | 1970-03-03 | Arthur Gudish | Process for manufacturing retainer rings |
US3739664A (en) * | 1971-10-14 | 1973-06-19 | J Swanstrom | Tools and machine parts and methods from inverse draft forging |
US3780840A (en) * | 1972-05-19 | 1973-12-25 | Carter H | Gear selector for a transmission |
US3987539A (en) * | 1974-01-31 | 1976-10-26 | Consolidated Foods Corporation | Method of making a molded commutator |
US4362043A (en) * | 1975-09-17 | 1982-12-07 | Hanson Thomas A | Pipe unions |
ES451569A1 (es) * | 1976-09-16 | 1977-10-16 | Bendiberica Sa | Procedimiento para la fabricacion de rotores para valvulas rotativas de servodireccion de vehiculos automoviles. |
CA1105661A (fr) * | 1978-10-02 | 1981-07-28 | Microdot Inc. | Methode de faconnage d'un ecrou etancheisant |
US4216575A (en) * | 1979-02-01 | 1980-08-12 | Noranda Mines Limited | Method of reforming the fins of a finned tube |
DE3134857C2 (de) * | 1981-09-03 | 1985-11-21 | Bayerisches Leichtmetallwerk Graf Blücher von Wahlstatt GmbH & Co KG, 8000 München | Verfahren zum Herstellen von Kupplungsteilen |
-
1981
- 1981-09-03 DE DE3134857A patent/DE3134857C2/de not_active Expired
-
1982
- 1982-03-31 JP JP57051468A patent/JPS5841645A/ja active Granted
- 1982-08-20 AT AT82107610T patent/ATE11647T1/de not_active IP Right Cessation
- 1982-08-20 DE DE8282107610T patent/DE3262223D1/de not_active Expired
- 1982-08-20 EP EP82107610A patent/EP0073985B1/fr not_active Expired
- 1982-08-26 GB GB08224524A patent/GB2106435B/en not_active Expired
- 1982-09-02 CA CA000410711A patent/CA1179871A/fr not_active Expired
-
1996
- 1996-09-12 US US08/712,956 patent/US5870923A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2448473A1 (de) * | 1973-11-01 | 1975-06-12 | Fahrzeuggetriebewerk Wilhelm F | Verfahren und vorrichtung zum spanlosen formen der stirnkontur, insbes. bei kupplungsverzahnungen |
DE2502306A1 (de) * | 1974-01-21 | 1975-07-24 | Politechnika Warszawska | Verfahren und vorrichtung zum formen der aussenflaeche von gegenstaenden aus verformbarem material |
DE2655205A1 (de) * | 1975-12-08 | 1977-06-30 | Marinus Johannes Smits | Verfahren zur herstellung von verzahnungen und zum durchfuehren dieses verfahrens geeignete matrize |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19624772A1 (de) * | 1996-06-21 | 1998-01-02 | Blw Praezisionsschmiede Gmbh | Klauenverzahnung für Schaltgetriebe oder dergleichen |
US6044951A (en) * | 1996-06-21 | 2000-04-04 | Blw Praezisionsschmiede Gmbh | Claw toothing for a gearbox or the like |
DE19624772C2 (de) * | 1996-06-21 | 2000-06-29 | Blw Praezisionsschmiede Gmbh | Klauenverzahnung für Schaltgetriebe oder dergleichen |
Also Published As
Publication number | Publication date |
---|---|
DE3134857A1 (de) | 1983-03-17 |
GB2106435B (en) | 1985-08-14 |
US5870923A (en) | 1999-02-16 |
DE3134857C2 (de) | 1985-11-21 |
EP0073985B1 (fr) | 1985-02-06 |
JPS5841645A (ja) | 1983-03-10 |
ATE11647T1 (de) | 1985-02-15 |
GB2106435A (en) | 1983-04-13 |
DE3262223D1 (en) | 1985-03-21 |
EP0073985A3 (en) | 1983-08-24 |
CA1179871A (fr) | 1984-12-27 |
JPH0134696B2 (fr) | 1989-07-20 |
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Inventor name: SPIELMANN WERNER Inventor name: TAUSCHEK, GEORG Inventor name: EISEN, MANFRED |
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