GB1386702A - Forming hollow metallic parts - Google Patents

Forming hollow metallic parts

Info

Publication number
GB1386702A
GB1386702A GB2717672A GB2717672A GB1386702A GB 1386702 A GB1386702 A GB 1386702A GB 2717672 A GB2717672 A GB 2717672A GB 2717672 A GB2717672 A GB 2717672A GB 1386702 A GB1386702 A GB 1386702A
Authority
GB
United Kingdom
Prior art keywords
pipe
ram
upsetting
wall
june
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
GB2717672A
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.)
Mitsubishi Motors Corp
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Motors Corp
Mitsubishi Heavy Industries 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 Mitsubishi Motors Corp, Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Motors Corp
Publication of GB1386702A publication Critical patent/GB1386702A/en
Expired 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
    • B21K1/20—Making machine elements valve parts
    • B21K1/22—Making machine elements valve parts poppet valves, e.g. for internal-combustion engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

1386702 Making valves upsetting MITSUBISHI JIDOSHA KOGYO KK and MITSUBISHI JUKOGYO KK 9 June 1972 [10 June 1971] 27176/72 Headings B3A and B3H A method of forming from a metal pipe 1 a metallic part having a hollow stem and a projecting cup portion whose diameter is greater than that of the stem, e.g. an engine valve, comprises bending the wall of the pipe outwards at one end of the pipe, simultaneously or subsequently subjecting the said end of the pipe to a hot upsetting process by means of an anvil 2, and subjecting the pipe to a further forging operation to form the desired part. A pipe 1, having an electrode 3 clamped thereon, is placed between an electrode anvil 2 and a ram 4. The pipe end is then subjected to resistance heating after which the ram 4 is moved to bend the pipe wall outwards as shown at y in Fig. la, either before or during the start of an upsetting of the pipe wall. The pressure exerted by the ram 4 is gradually increased until the pipe end is upset as shown in Fig. 1b. Futher forging operation are effected to produce hollow cap or hollow body valves (Figs. 2a, 2b and 3a, 3b).
GB2717672A 1971-06-10 1972-06-09 Forming hollow metallic parts Expired GB1386702A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4054871A JPS5035024B1 (en) 1971-06-10 1971-06-10

Publications (1)

Publication Number Publication Date
GB1386702A true GB1386702A (en) 1975-03-12

Family

ID=12583487

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2717672A Expired GB1386702A (en) 1971-06-10 1972-06-09 Forming hollow metallic parts

Country Status (5)

Country Link
JP (1) JPS5035024B1 (en)
DE (1) DE2227915C3 (en)
FR (1) FR2140604B1 (en)
GB (1) GB1386702A (en)
IT (1) IT956959B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242378A (en) * 1990-03-26 1991-10-02 Honda Motor Co Ltd Forming engine valve
CN102652042A (en) * 2009-12-24 2012-08-29 三菱重工业株式会社 Method for manufacturing valve umbrella portion of hollow engine valve, press device of valve umbrella portion of hollow engine valve, and hollow engine valve
CN112921162A (en) * 2019-12-06 2021-06-08 现代自动车株式会社 Engine valve and preparation method thereof, engine and vehicle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574544U (en) * 1980-06-10 1982-01-11
DE4104707C2 (en) * 1991-02-15 1994-06-01 Bruno Jakob Brueck Device for upsetting flange-like thickenings on pipes
DE102011090203A1 (en) * 2011-12-30 2013-07-04 Continental Automotive Gmbh Design of a valve closing body

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242378A (en) * 1990-03-26 1991-10-02 Honda Motor Co Ltd Forming engine valve
US5054301A (en) * 1990-03-26 1991-10-08 Honda Giken Kogyo Kabushiki Kaisha Method of forming metallic product
GB2242378B (en) * 1990-03-26 1993-09-22 Honda Motor Co Ltd Method of forming metallic product
CN102652042A (en) * 2009-12-24 2012-08-29 三菱重工业株式会社 Method for manufacturing valve umbrella portion of hollow engine valve, press device of valve umbrella portion of hollow engine valve, and hollow engine valve
CN102652042B (en) * 2009-12-24 2014-09-17 三菱重工业株式会社 Method for manufacturing valve umbrella portion of hollow engine valve, press device of valve umbrella portion of hollow engine valve, and hollow engine valve
CN112921162A (en) * 2019-12-06 2021-06-08 现代自动车株式会社 Engine valve and preparation method thereof, engine and vehicle
EP3831967A1 (en) * 2019-12-06 2021-06-09 Hyundai Motor Company Preparing method of engine valve
US11597981B2 (en) 2019-12-06 2023-03-07 Hyundai Motor Company Preparing method of engine valve

Also Published As

Publication number Publication date
DE2227915A1 (en) 1973-01-11
DE2227915B2 (en) 1979-02-22
JPS5035024B1 (en) 1975-11-13
DE2227915C3 (en) 1979-10-25
FR2140604B1 (en) 1977-12-23
FR2140604A1 (en) 1973-01-19
IT956959B (en) 1973-10-10

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Legal Events

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