GB1208730A - A method of forming sheet or plate material - Google Patents

A method of forming sheet or plate material

Info

Publication number
GB1208730A
GB1208730A GB1206867A GB1206867A GB1208730A GB 1208730 A GB1208730 A GB 1208730A GB 1206867 A GB1206867 A GB 1206867A GB 1206867 A GB1206867 A GB 1206867A GB 1208730 A GB1208730 A GB 1208730A
Authority
GB
United Kingdom
Prior art keywords
die
gas
forming
sheet
dec
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
GB1206867A
Inventor
Roger David Butler
Cedric Charles Edward Colley
Ian Bowers
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.)
Pressed Steel Fisher Ltd
Original Assignee
Pressed Steel Fisher 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 Pressed Steel Fisher Ltd filed Critical Pressed Steel Fisher Ltd
Priority to FR1548977D priority Critical patent/FR1548977A/fr
Priority to DE19671602531 priority patent/DE1602531A1/en
Publication of GB1208730A publication Critical patent/GB1208730A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/053—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure characterised by the material of the blanks
    • B21D26/055—Blanks having super-plastic properties

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

1,208,730. Making dies; stamping; working at specified temperatures. PRESSED STEEL FISHER Ltd. 18 Dec., 1967 [23 Dec., 1966], No. 57755/66. Headings B3A, B3Q and B3V. A method of forming a superplastic alloy plate or sheet comprises heating the sheet to within the superplastic temperature range, forming it using at least one die, passing a gas through the die to cool the formed sheet to a temperature at which it is sufficiently rigid not to be permanently deformed during stripping, and increasing the gas pressure to strip the formed workpiece from the die. Apparatus for performing the method may be as described in Specification 1,208,729, and include on the die (19) a steel sealing flange (23) having radial gas-exhaust slots. Alternatively a porous die may be used. Compressed-air may be passed through the ducts during the forming operation to act as a gas cushion on the die-surface. At the end of a forming operation, the pressure of the gas cushion is allowed to fall for the cooling stage, after which it is increased for ejection.
GB1206867A 1966-12-23 1966-12-23 A method of forming sheet or plate material Expired GB1208730A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1548977D FR1548977A (en) 1966-12-23 1967-12-20
DE19671602531 DE1602531A1 (en) 1966-12-23 1967-12-21 Process for shaping sheet or sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5775566 1966-12-23

Publications (1)

Publication Number Publication Date
GB1208730A true GB1208730A (en) 1970-10-14

Family

ID=10479959

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1206867A Expired GB1208730A (en) 1966-12-23 1966-12-23 A method of forming sheet or plate material

Country Status (1)

Country Link
GB (1) GB1208730A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110076216A (en) * 2019-04-26 2019-08-02 四川凡立美科技有限公司 A kind of stainless steel plate pressure calibration devices of detectable finishing defect
CN115365361A (en) * 2022-09-16 2022-11-22 吉林大学 7075-T6 aluminum alloy contact heating forming method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110076216A (en) * 2019-04-26 2019-08-02 四川凡立美科技有限公司 A kind of stainless steel plate pressure calibration devices of detectable finishing defect
CN115365361A (en) * 2022-09-16 2022-11-22 吉林大学 7075-T6 aluminum alloy contact heating forming method

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees