GB1429054A - Forming of metal panels - Google Patents

Forming of metal panels

Info

Publication number
GB1429054A
GB1429054A GB3529373A GB3529373A GB1429054A GB 1429054 A GB1429054 A GB 1429054A GB 3529373 A GB3529373 A GB 3529373A GB 3529373 A GB3529373 A GB 3529373A GB 1429054 A GB1429054 A GB 1429054A
Authority
GB
United Kingdom
Prior art keywords
sheets
facing
interior sheet
sheet
forming
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
GB3529373A
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.)
British Aircraft Corp Ltd
Original Assignee
British Aircraft Corp 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 British Aircraft Corp Ltd filed Critical British Aircraft Corp Ltd
Priority to GB3529373A priority Critical patent/GB1429054A/en
Priority to US490887A priority patent/US3924793A/en
Publication of GB1429054A publication Critical patent/GB1429054A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

1429054 Making composite panels; stamping BRITISH AIRCRAFT CORP Ltd 23 July 1974 [24 July 1973] 35293/73 Headings B3A and B3Q [Also in Division E1] A method of forming a panel comprises positioning a metal facing sheet 1, 2 on each side of an interior sheet 3 of an alloy which exhibits superplastic behaviour, attaching spaced regions of the interior sheet alternately to each facing sheet, heating the assembly of sheets to a temperature at which the interior sheet exhibits superplasticity, and moving the facing sheets apart so that the interior sheet extends from one facing sheet to the other in alternate sequence. In one embodiment, the facing sheets are sealed one to the other to form an inflatable envelope assembly. The sheets are subjected to a welding operation around their peripheries at a region 8, Fig. 8. Spacer portions 4 in the form of strips, or portions 5 in the form of discs, are diffusion bonded to the sheets, and upon the moving apart of the sheets 1, 2 by inert gas under pressure a corrugated interior sheet or a dimpled interior sheet is formed. In a further embodiment, Figs. 4-6 (not shown), the welded regions are in the form of lines (6) or spots (7). To maintain flat outer surfaces, the sheets 1, 2 may be moved apart against press platens and the interior sheet may be of thinner gauge material than the facing sheets. The sheets 1, 2 may also be of a superplastic alloy, thus facilitating the forming of a non-flat panel.
GB3529373A 1973-07-24 1973-07-24 Forming of metal panels Expired GB1429054A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3529373A GB1429054A (en) 1973-07-24 1973-07-24 Forming of metal panels
US490887A US3924793A (en) 1973-07-24 1974-07-22 Forming metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3529373A GB1429054A (en) 1973-07-24 1973-07-24 Forming of metal panels

Publications (1)

Publication Number Publication Date
GB1429054A true GB1429054A (en) 1976-03-24

Family

ID=10376081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3529373A Expired GB1429054A (en) 1973-07-24 1973-07-24 Forming of metal panels

Country Status (2)

Country Link
US (1) US3924793A (en)
GB (1) GB1429054A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421014A1 (en) * 1978-03-30 1979-10-26 Wuppermann Gmbh Theodor
US5143276A (en) * 1988-09-09 1992-09-01 British Aerospace Plc Domed structures and a method of making them by superplastic forming and diffusion bonding
US5287918A (en) * 1990-06-06 1994-02-22 Rolls-Royce Plc Heat exchangers
US5330093A (en) * 1991-08-14 1994-07-19 British Aerospace Public Limited Company Manufacture of articles by diffusion bonding and superplastic forming
US5385204A (en) * 1989-08-25 1995-01-31 Rolls-Royce Plc Heat exchanger and methods of manufacture thereof
US5505256A (en) * 1991-02-19 1996-04-09 Rolls-Royce Plc Heat exchangers and methods of manufacture thereof

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304821A (en) * 1978-04-18 1981-12-08 Mcdonnell Douglas Corporation Method of fabricating metallic sandwich structure
GB2030480B (en) * 1978-09-29 1982-08-04 British Aerospace Method of making a stiffened panel
US4292375A (en) * 1979-05-30 1981-09-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Superplastically formed diffusion bonded metallic structure
US4393987A (en) * 1981-09-30 1983-07-19 The Boeing Company Superplastically formed structure and method of making
US4538756A (en) * 1981-10-15 1985-09-03 Texas Instruments Incorporated Process for producing reinforced structural members
US4769968A (en) * 1987-03-05 1988-09-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Truss-core corrugation for compressive loads
JP2686340B2 (en) * 1990-04-03 1997-12-08 三菱重工業株式会社 Composite material molding method
US5118571A (en) * 1990-12-21 1992-06-02 Ltv Aerospace And Defense Company Structure and method for forming structural components
US5641422A (en) * 1991-04-05 1997-06-24 The Boeing Company Thermoplastic welding of organic resin composites using a fixed coil induction heater
US5624594A (en) * 1991-04-05 1997-04-29 The Boeing Company Fixed coil induction heater for thermoplastic welding
US5645744A (en) * 1991-04-05 1997-07-08 The Boeing Company Retort for achieving thermal uniformity in induction processing of organic matrix composites or metals
US5420400A (en) * 1991-10-15 1995-05-30 The Boeing Company Combined inductive heating cycle for sequential forming the brazing
US7126096B1 (en) * 1991-04-05 2006-10-24 Th Boeing Company Resistance welding of thermoplastics in aerospace structure
US5793024A (en) * 1991-04-05 1998-08-11 The Boeing Company Bonding using induction heating
US5710414A (en) * 1991-04-05 1998-01-20 The Boeing Company Internal tooling for induction heating
US5410132A (en) * 1991-10-15 1995-04-25 The Boeing Company Superplastic forming using induction heating
US5723849A (en) * 1991-04-05 1998-03-03 The Boeing Company Reinforced susceptor for induction or resistance welding of thermoplastic composites
US5728309A (en) * 1991-04-05 1998-03-17 The Boeing Company Method for achieving thermal uniformity in induction processing of organic matrix composites or metals
US5808281A (en) * 1991-04-05 1998-09-15 The Boeing Company Multilayer susceptors for achieving thermal uniformity in induction processing of organic matrix composites or metals
US5587098A (en) * 1991-04-05 1996-12-24 The Boeing Company Joining large structures using localized induction heating
US5437936A (en) * 1991-05-13 1995-08-01 Johnson; Jeffrey D. Honeycomb core structure and method and apparatus relating thereto
GB9121107D0 (en) * 1991-10-04 1991-11-20 British Aerospace Improvements relating to diffusion bonded/superplastically formed cellular structures
US5705794A (en) * 1991-10-15 1998-01-06 The Boeing Company Combined heating cycles to improve efficiency in inductive heating operations
US6087640A (en) * 1991-10-15 2000-07-11 The Boeing Company Forming parts with complex curvature
US5914064A (en) * 1991-10-15 1999-06-22 The Boeing Company Combined cycle for forming and annealing
US5687900A (en) * 1995-03-28 1997-11-18 Mcdonnell Douglas Corporation Structural panel having a predetermined shape and an associated method for superplastically forming and diffusion bonding the structural panel
US5994666A (en) * 1996-01-12 1999-11-30 The Boeing Company Multisheet metal sandwich structures
EP0923452B1 (en) 1996-01-12 2006-05-17 The Boeing Company Metal sandwich structure with integral hardpoint
US5955207A (en) * 1997-11-24 1999-09-21 Mcdonnell Douglas Corporation Structural panel having boron reinforce face sheets and associated fabrication method
EP0962268A1 (en) * 1998-06-02 1999-12-08 Solistor B.V. A method for manufacturing a storage vessel for storing a medium, as well as a storage vessel manufactured in accordance with this method
US6337471B1 (en) * 1999-04-23 2002-01-08 The Boeing Company Combined superplastic forming and adhesive bonding
US6914225B2 (en) * 2003-06-18 2005-07-05 The Boeing Company Apparatus and methods for single sheet forming using induction heating
FR2913107B1 (en) * 2007-02-23 2009-05-08 Pierre Vironneau METHOD FOR PRODUCING A THERMAL EXCHANGER AND THERMAL EXCHANGER OBTAINED ACCORDING TO THIS METHOD
EP2110189A1 (en) * 2008-04-18 2009-10-21 ETH Zürich Method for dieless forming of sheet metal
CN103331513B (en) * 2013-07-03 2016-01-20 北京科技大学 A kind of manufacture method of superplasticity two phase stainless steel sandwich
GB201715791D0 (en) * 2017-09-29 2017-11-15 Rolls Royce Plc Blade and vanes for gas turbine engines and manufacture thereof
US11260952B2 (en) * 2019-09-26 2022-03-01 The Boeing Company Reinforced superplastic formed and diffusion bonded structures

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481046A (en) * 1947-11-13 1949-09-06 Western Engineering Associates Panel structure
US3200489A (en) * 1957-06-18 1965-08-17 George F Keeleric Method of making honeycomb core
US3206847A (en) * 1962-03-16 1965-09-21 George F Keeleric Method for joining metal pieces at spaced intervals
US3345735A (en) * 1963-02-25 1967-10-10 Augustus H Nicholls Honeycomb core construction through the application of heat and pressure
US3340101A (en) * 1965-04-02 1967-09-05 Ibm Thermoforming of metals

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421014A1 (en) * 1978-03-30 1979-10-26 Wuppermann Gmbh Theodor
US5143276A (en) * 1988-09-09 1992-09-01 British Aerospace Plc Domed structures and a method of making them by superplastic forming and diffusion bonding
US5385204A (en) * 1989-08-25 1995-01-31 Rolls-Royce Plc Heat exchanger and methods of manufacture thereof
US5287918A (en) * 1990-06-06 1994-02-22 Rolls-Royce Plc Heat exchangers
US5505256A (en) * 1991-02-19 1996-04-09 Rolls-Royce Plc Heat exchangers and methods of manufacture thereof
US5330093A (en) * 1991-08-14 1994-07-19 British Aerospace Public Limited Company Manufacture of articles by diffusion bonding and superplastic forming

Also Published As

Publication number Publication date
US3924793A (en) 1975-12-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19940722