GB1340486A - Forging apparatus - Google Patents

Forging apparatus

Info

Publication number
GB1340486A
GB1340486A GB1340486DA GB1340486A GB 1340486 A GB1340486 A GB 1340486A GB 1340486D A GB1340486D A GB 1340486DA GB 1340486 A GB1340486 A GB 1340486A
Authority
GB
United Kingdom
Prior art keywords
die
punch
mandrel
workpiece
forging
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.)
Expired
Application number
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.)
GKN Forgings Ltd
Original Assignee
GKN Forgings Ltd
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 GKN Forgings Ltd filed Critical GKN Forgings Ltd
Publication of GB1340486A publication Critical patent/GB1340486A/en
Expired legal-status Critical Current

Links

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
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/03—Press-moulding apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Abstract

1340486 Forging dies GKN FORGINGS Ltd 19 April 1971 [12 Dec 1969] 60633/69 Heading B3H A forging die comprises a first punch 21 fixed to a base plate, a second punch 20 on which a die 24 is slidable and a mandrel 30 slidable in the first punch. The die is spring- biased away from the second punch and the mandrel is biased by a spring 31 towards the second punch. The punches, die and mandrel define a closed annular die cavity for a workpiece 23. During forging the workpiece flows to engage the die wall 25 and the mandrel surface and the die and mandrel move downwards with the workpiece during forging. Thus the friction between the die and mandrel and the workpiece is eliminated. The biasing may be hydraulic instead of springs. In a second embodiment, Fig. 3, the die (45) is slidably mounted on the fixed first punch (40). The workpiece may be a metal powder compact which may have been sintered.
GB1340486D 1969-12-12 1969-12-12 Forging apparatus Expired GB1340486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6063369 1969-12-12

Publications (1)

Publication Number Publication Date
GB1340486A true GB1340486A (en) 1973-12-12

Family

ID=10485851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1340486D Expired GB1340486A (en) 1969-12-12 1969-12-12 Forging apparatus

Country Status (1)

Country Link
GB (1) GB1340486A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085388A1 (en) * 1982-02-02 1983-08-10 MOTOMAK Motorenbau, Maschinen- und Werkzeugfabrik, Konstruktionen GmbH Method of making a metal socket starting from a cylindrical tubular piece
WO2000002683A1 (en) * 1998-06-29 2000-01-20 Eric Wirgarth Forging die
WO2009062592A2 (en) * 2007-11-13 2009-05-22 Ixetic Hückeswagen Gmbh Sintered rotor
CN113710390A (en) * 2019-04-26 2021-11-26 日立金属株式会社 Forging apparatus and method for manufacturing forged product
CN113710390B (en) * 2019-04-26 2024-05-03 株式会社博迈立铖 Forging apparatus and method for manufacturing forged product

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085388A1 (en) * 1982-02-02 1983-08-10 MOTOMAK Motorenbau, Maschinen- und Werkzeugfabrik, Konstruktionen GmbH Method of making a metal socket starting from a cylindrical tubular piece
WO2000002683A1 (en) * 1998-06-29 2000-01-20 Eric Wirgarth Forging die
US6457341B1 (en) 1998-06-29 2002-10-01 Eric Wirgarth Forging die
WO2009062592A2 (en) * 2007-11-13 2009-05-22 Ixetic Hückeswagen Gmbh Sintered rotor
WO2009062592A3 (en) * 2007-11-13 2009-08-20 Ixetic Hueckeswagen Gmbh Sintered rotor
CN113710390A (en) * 2019-04-26 2021-11-26 日立金属株式会社 Forging apparatus and method for manufacturing forged product
CN113710390B (en) * 2019-04-26 2024-05-03 株式会社博迈立铖 Forging apparatus and method for manufacturing forged product

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee