GB1388159A - Moulding of superplastic alloy sheet - Google Patents

Moulding of superplastic alloy sheet

Info

Publication number
GB1388159A
GB1388159A GB2789172A GB2789172A GB1388159A GB 1388159 A GB1388159 A GB 1388159A GB 2789172 A GB2789172 A GB 2789172A GB 2789172 A GB2789172 A GB 2789172A GB 1388159 A GB1388159 A GB 1388159A
Authority
GB
United Kingdom
Prior art keywords
mould
moulding
minutes
moulded
sheet
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
GB2789172A
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.)
ISC Alloys Ltd
Original Assignee
ISC Alloys 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 ISC Alloys Ltd filed Critical ISC Alloys Ltd
Priority to GB2789172A priority Critical patent/GB1388159A/en
Priority to DE19732329778 priority patent/DE2329778C3/en
Priority to AU56848/73A priority patent/AU5684873A/en
Priority to FR7321549A priority patent/FR2187450B1/fr
Priority to JP48067311A priority patent/JPS4952123A/ja
Priority to US370035A priority patent/US3864176A/en
Publication of GB1388159A publication Critical patent/GB1388159A/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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/165—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon of zinc or cadmium or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Heat Treatment Of Nonferrous Metals Or Alloys (AREA)

Abstract

1388159 Moulding superplastic alloy sheets; making decorative panels ISC ALLOYS Ltd 30 May 1973 [14 June 1972] 27891/72 Headings B3A B3V and B3Q Superplastic alloy sheet conformed to a mould surface is removed from the mould and then, while suitably supported, subjected to a temperature of 180-220‹ C. to remove warping or distortion. In an example, a wall panel at 250‹ C. was moulded for 12 minutes using compressed air at 60 lbs. per square inch. The panel was distorted upon removal from the mould and was stored, being subsequently placed on a flat hot plate at 200‹ C. and free from distortions within 15-20 minutes; In a further example, a sheet was moulded for 6 minutes at 250‹ C. and at 150 lbs. per square inch air pressure. The moulding was removed by cooling it around the peripheral flange and allowing it to fall on to and be distorted by a lower platen. The distortion was removed by inverting the hot moulding and cooling it for 1 hour on another mould of complementary shape. Heat treatment of the moulded sheet preferably takes at least 10 minutes in an oven, or heat remaining after the moulding operation may be used. Either surface of a moulded sheet may be cooled by air or water to facilitate its removal from the mould after pressure or vacuum forming. Zinc-aluminium alloys are referred to containing 15-40 weight per cent Al, preferably 18-30%, with or without up to 0À5% of, for example, Cu or Mg. Methods of removing mouldings are acknowledged in which the formed component is heated above the superplastic range, e.g. by contact with a heated die at the end of forming. Alternatively, contact with a cold die may destroy superplasticity, or both the component and die are cooled.
GB2789172A 1972-06-14 1972-06-14 Moulding of superplastic alloy sheet Expired GB1388159A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB2789172A GB1388159A (en) 1972-06-14 1972-06-14 Moulding of superplastic alloy sheet
DE19732329778 DE2329778C3 (en) 1972-06-14 1973-06-12 Process for the heat treatment of workpieces made of superplasticizable zinc-aluminum alloys
AU56848/73A AU5684873A (en) 1972-06-14 1973-06-12 Moulding of superplastic alloy sheet
FR7321549A FR2187450B1 (en) 1972-06-14 1973-06-13
JP48067311A JPS4952123A (en) 1972-06-14 1973-06-14
US370035A US3864176A (en) 1972-06-14 1973-06-14 Moulding of superplastic alloy sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2789172A GB1388159A (en) 1972-06-14 1972-06-14 Moulding of superplastic alloy sheet

Publications (1)

Publication Number Publication Date
GB1388159A true GB1388159A (en) 1975-03-26

Family

ID=10266958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2789172A Expired GB1388159A (en) 1972-06-14 1972-06-14 Moulding of superplastic alloy sheet

Country Status (5)

Country Link
US (1) US3864176A (en)
JP (1) JPS4952123A (en)
AU (1) AU5684873A (en)
FR (1) FR2187450B1 (en)
GB (1) GB1388159A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2493967A (en) * 2011-08-25 2013-02-27 U Me Technology Co Ltd Method for forming a metal article

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001198B1 (en) * 1977-09-05 1980-08-20 Scal Societe De Conditionnements En Aluminium Process for the manufacture of articles by the thermoforming of aluminium or magnesium or of aluminium or magnesium base alloys
US4493737A (en) * 1980-05-21 1985-01-15 The United States Of America As Represented By The United States Department Of Energy Method for fabricating uranium alloy articles without shape memory effects
JPS62209805A (en) * 1986-03-10 1987-09-16 Agency Of Ind Science & Technol Molding method for composite magnetic material using zn-22al superplastic alloy powder
US7431196B2 (en) * 2005-03-21 2008-10-07 The Boeing Company Method and apparatus for forming complex contour structural assemblies

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1248253A (en) * 1968-03-21 1971-09-29 Pressed Steel Fisher Ltd A method of forming metal alloys
US3676115A (en) * 1968-05-03 1972-07-11 Nat Res Dev Zinc alloys
US3567524A (en) * 1968-12-13 1971-03-02 Ibm Method of producing moldings and the products of this method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2493967A (en) * 2011-08-25 2013-02-27 U Me Technology Co Ltd Method for forming a metal article
GB2493967B (en) * 2011-08-25 2014-08-27 U Me Technology Co Ltd Method for forming a metal article

Also Published As

Publication number Publication date
US3864176A (en) 1975-02-04
DE2329778A1 (en) 1974-01-10
AU5684873A (en) 1974-12-12
FR2187450B1 (en) 1975-08-22
JPS4952123A (en) 1974-05-21
FR2187450A1 (en) 1974-01-18
DE2329778B2 (en) 1976-05-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee