EP0846505A3 - Closed-die forging process and rotationally incremental forging press - Google Patents

Closed-die forging process and rotationally incremental forging press Download PDF

Info

Publication number
EP0846505A3
EP0846505A3 EP97121484A EP97121484A EP0846505A3 EP 0846505 A3 EP0846505 A3 EP 0846505A3 EP 97121484 A EP97121484 A EP 97121484A EP 97121484 A EP97121484 A EP 97121484A EP 0846505 A3 EP0846505 A3 EP 0846505A3
Authority
EP
European Patent Office
Prior art keywords
press
die
movable die
indexing
workpiece
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.)
Withdrawn
Application number
EP97121484A
Other languages
German (de)
French (fr)
Other versions
EP0846505A2 (en
Inventor
Hugo E. Delgado
Timothy E. Howson
Jack M. Hyzak
Paul D. Antaya
Thomas F. Doherty
Paul J. Gargolinski
Peter R. Jepson
Martin M. Morra
James E. Shannon, Iii
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.)
Wyman Gordon Co
Original Assignee
Wyman Gordon Co
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 Wyman Gordon Co filed Critical Wyman Gordon Co
Publication of EP0846505A2 publication Critical patent/EP0846505A2/en
Publication of EP0846505A3 publication Critical patent/EP0846505A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B21K1/32—Making machine elements wheels; discs discs, e.g. disc wheels
    • 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
    • B21J5/008—Incremental forging
    • 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
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging

Abstract

A forging press (20) includes a die set having a stationary die (22), a movable die (24) in facing-but-spaced-apart relation to the stationary die (22) along a press axis (30) and defining a workpiece volume (36) therebetween, and an exterior constraint (34) extending circumferentially around the workpiece volume (36). The movable die (24) has a base level region (46) lying generally in a workpiece plane (48) perpendicular to the press axis (30), and three rotationally symmetric segments (50) raised above the base level region (46). Each of the segments (50) forms an angular segment of a disk having an included segment angle and that is angularly separated from the other segments (50). A press mechanism (44) includes a axial drive operable to move the movable die (24) in a direction parallel to the press axis (30), and an indexing drive operable to rotate the movable die (24) about the press axis (30) by an indexing rotational angle. In operation, the axial drive performs a press stroke and retracts, the indexing drive rotates the movable die (24) by the indexing rotational angle of less than the included segment angle, and the axial drive performs another press stroke. By repeating these steps, the entire workpiece (32) is forged incrementally.
EP97121484A 1996-12-06 1997-12-06 Closed-die forging process and rotationally incremental forging press Withdrawn EP0846505A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US33250 1993-03-16
US3325096P 1996-12-06 1996-12-06
US3849397P 1997-02-24 1997-02-24
US38493 1997-02-24
US91980297A 1997-08-29 1997-08-29
US919802 1997-08-29

Publications (2)

Publication Number Publication Date
EP0846505A2 EP0846505A2 (en) 1998-06-10
EP0846505A3 true EP0846505A3 (en) 1999-12-08

Family

ID=27364351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121484A Withdrawn EP0846505A3 (en) 1996-12-06 1997-12-06 Closed-die forging process and rotationally incremental forging press

Country Status (3)

Country Link
EP (1) EP0846505A3 (en)
CN (1) CN1074692C (en)
FR (1) FR2756759B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005014201A1 (en) * 2003-08-11 2005-02-17 Washi Kosan Co., Ltd. Method of producing wheel and the wheel
CN101912889B (en) * 2009-06-17 2013-07-31 苏州昆仑先进制造技术装备有限公司 Distributive extrusion process method and distributive extrusion mold thereof
WO2010145551A1 (en) * 2009-06-17 2010-12-23 苏州昆仑先进制造技术装备有限公司 Distribution extruding forming device and distribution extruding forming method
CN101941039B (en) * 2010-09-15 2011-11-23 中南大学 High-strength aluminum alloy isothermal direction-change open die forging method and device
CN102172755B (en) * 2011-03-30 2013-05-08 重庆长征重工有限责任公司 Connecting rod manufacturing method capable of improving surface quality of connecting rod of medium-speed/high-speed diesel engine
CN116274807A (en) * 2023-03-31 2023-06-23 嘉兴晨人一信仪表有限公司 Impeller forging method, impeller manufactured by using method and centrifugal pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638471A (en) * 1969-11-28 1972-02-01 United States Steel Corp Heavy press forging apparatus and method
US4286454A (en) * 1978-07-28 1981-09-01 Langenstein & Schemann Aktiengesellschaft Apparatus for forging shaft flanges
US4433568A (en) * 1980-05-21 1984-02-28 Kabushiki Kaisha Wako Precision closed-die forging method
JPS61232029A (en) * 1985-04-05 1986-10-16 Komatsu Ltd Metal die device for closed incremental forging
WO1995016528A1 (en) * 1993-12-17 1995-06-22 Wyman-Gordon Company Stepped, segmented, closed-die forging

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413496A (en) * 1979-01-12 1983-11-08 Diemer Donald J Method of making flanged track tractor roller for off-highway equipment
US4907436A (en) * 1988-10-11 1990-03-13 Efco, Inc. Step forging press

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638471A (en) * 1969-11-28 1972-02-01 United States Steel Corp Heavy press forging apparatus and method
US4286454A (en) * 1978-07-28 1981-09-01 Langenstein & Schemann Aktiengesellschaft Apparatus for forging shaft flanges
US4433568A (en) * 1980-05-21 1984-02-28 Kabushiki Kaisha Wako Precision closed-die forging method
JPS61232029A (en) * 1985-04-05 1986-10-16 Komatsu Ltd Metal die device for closed incremental forging
WO1995016528A1 (en) * 1993-12-17 1995-06-22 Wyman-Gordon Company Stepped, segmented, closed-die forging

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 076 (M - 569) 7 March 1987 (1987-03-07) *

Also Published As

Publication number Publication date
EP0846505A2 (en) 1998-06-10
FR2756759B1 (en) 2001-01-12
CN1190608A (en) 1998-08-19
FR2756759A1 (en) 1998-06-12
CN1074692C (en) 2001-11-14

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