GB1495432A - Shaping of metallic materials - Google Patents

Shaping of metallic materials

Info

Publication number
GB1495432A
GB1495432A GB49975A GB49975A GB1495432A GB 1495432 A GB1495432 A GB 1495432A GB 49975 A GB49975 A GB 49975A GB 49975 A GB49975 A GB 49975A GB 1495432 A GB1495432 A GB 1495432A
Authority
GB
United Kingdom
Prior art keywords
temperature
forging
plate
hammer
pressing
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
GB49975A
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 Heavy Industries Ltd
Original Assignee
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 Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to GB49975A priority Critical patent/GB1495432A/en
Publication of GB1495432A publication Critical patent/GB1495432A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • 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
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)

Abstract

1495432 Pressing at specified temperatures; forging MITSUBISHI JUKOGYO KK 6 Jan 1975 499/75 Headings B3H B3Q and B3V Metallic material capable of undergoing solid state phase transformation with change in temperature is rendered superplastic by cyclic heating and simultaneously subjected to a light pressing or forging force. A triangular temperature-time cycle is used, with the temperature ranging between 50-200‹ C. of each side of a transformation point and a frequency of 3-5 cycles per minute for forming times of 5-8 minutes. For stainless-steel plate the temperature cycles between 1050-1150‹ C., for a eutectoid steel the temperature is 600-850 if AC1 is used or up to 950‹ C. if AC3 is jointly used. The plate is heated by resistance or H.F. induction, and cooled by compressed-air. Forming is effected between dies although in some case the weight of the plate is sufficient without pressure from the upper die. A hammer for noiselessly forging a workpiece 6 by the process comprises upper and lower dies 7, 8 which are connected (not shown) to an electric supply, and a surrounding chamfer 15 containing a cooler (not shown). The ram 2 is actuated by gas pressure in a chamber 1 and returned by posts 9. Springs 4 support the body 3 of the hammer and an ejector 10 is provided. Specification 1,495,431 is referred to.
GB49975A 1975-01-06 1975-01-06 Shaping of metallic materials Expired GB1495432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB49975A GB1495432A (en) 1975-01-06 1975-01-06 Shaping of metallic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB49975A GB1495432A (en) 1975-01-06 1975-01-06 Shaping of metallic materials

Publications (1)

Publication Number Publication Date
GB1495432A true GB1495432A (en) 1977-12-21

Family

ID=9705424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49975A Expired GB1495432A (en) 1975-01-06 1975-01-06 Shaping of metallic materials

Country Status (1)

Country Link
GB (1) GB1495432A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2435299A1 (en) * 1978-09-11 1980-04-04 Rockwell International Corp Combined superplastic forming and forging of metal preform - to produce articles of complex variable thickness
CN107825062A (en) * 2017-11-28 2018-03-23 镇江市高等专科学校 A kind of door panel irregular contour prosthetic device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2435299A1 (en) * 1978-09-11 1980-04-04 Rockwell International Corp Combined superplastic forming and forging of metal preform - to produce articles of complex variable thickness
CN107825062A (en) * 2017-11-28 2018-03-23 镇江市高等专科学校 A kind of door panel irregular contour prosthetic device

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee