GB695640A - A new or improved method of and apparatus for forming sheet metal structures - Google Patents

A new or improved method of and apparatus for forming sheet metal structures

Info

Publication number
GB695640A
GB695640A GB1987750A GB1987750A GB695640A GB 695640 A GB695640 A GB 695640A GB 1987750 A GB1987750 A GB 1987750A GB 1987750 A GB1987750 A GB 1987750A GB 695640 A GB695640 A GB 695640A
Authority
GB
United Kingdom
Prior art keywords
dies
sheets
pressure
nozzle
expansion
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
GB1987750A
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.)
JOHN WILLIAM RICHINGS
Original Assignee
JOHN WILLIAM RICHINGS
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 JOHN WILLIAM RICHINGS filed Critical JOHN WILLIAM RICHINGS
Priority to GB1987750A priority Critical patent/GB695640A/en
Publication of GB695640A publication Critical patent/GB695640A/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
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • B21D53/045—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal by inflating partially united plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F28F3/14—Elements constructed in the shape of a hollow panel, e.g. with channels by separating portions of a pair of joined sheets to form channels, e.g. by inflation

Landscapes

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

Abstract

695,640. Making heat-exchangers. RICHINGS, J. W. Aug. 10, 1951 [Aug. 10, 1950], No. 19877/50. Classes 83 (ii) and 83 (iv). Stamping; welding.-A process for making hollow sheet-metal structures, e.g. heat-exchangers, comprises applying welding pressure by means of a pair of cooperating dies to selected registering areas of the outer faces of two sheets placed between the dies so as simultaneously to weld the margins of the sheets together to render the space between the sheets fluid-tight and also to weld the sheets together inwards of the outer marginal seam to define the internal configuration of the structure and applying fluid pressure between the sheets to expand portions against which said welding pressure is not applied, the degree of expansion being controlled by cavities in the said co-operating dies. Apparatus for carrying out the invention comprises a pair of dies 10 and 11 and a nozzle 12 for injecting pressure fluid preferably air or other gas from a flexible pipe-line 13. A seating 16 and 17 of resilient material is interposed between the dies and their carrying members 14 and 15 of the press. The lower die 11 has pressure-plates 18 for limiting the inward travel of the dies and the dies are located laterally by dowels 19 and bushings 20. The metal sheets 25 and 26 are located between the dies by cylindrical posts 21 having conical outer ends 22 and rectangular posts 23. Each of the dies is provided with cavities 27 and raised portions 28 and 29. The nozzle 12 has a portion 30 of elliptical cross-section for withstanding the lateral pressure of the dies and initiates expansion of the metal sheets. The pressure-fluid passes through passageways 31 and 32 in the nozzle and a flange 33 seated in a recess in the dies retains the nozzle in position. The plates may be of aluminium or copper alloys or sheet steel and the dies may be heated by electric heating elements placed in passageways, 34 or by a heating medium passing through these passageways. The welding may either be effected simultaneously with the expansion of the sheets into the die cavities 27 or prior to the introduction of the pressure fluid to effect such expansion. Specification 695,628, [Group XIII], is referred to.
GB1987750A 1950-08-10 1950-08-10 A new or improved method of and apparatus for forming sheet metal structures Expired GB695640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1987750A GB695640A (en) 1950-08-10 1950-08-10 A new or improved method of and apparatus for forming sheet metal structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1987750A GB695640A (en) 1950-08-10 1950-08-10 A new or improved method of and apparatus for forming sheet metal structures

Publications (1)

Publication Number Publication Date
GB695640A true GB695640A (en) 1953-08-12

Family

ID=10136667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1987750A Expired GB695640A (en) 1950-08-10 1950-08-10 A new or improved method of and apparatus for forming sheet metal structures

Country Status (1)

Country Link
GB (1) GB695640A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882588A (en) * 1954-03-10 1959-04-21 Metal Specialty Company Simultaneous pressure welding and pressure forming
US2949875A (en) * 1954-07-22 1960-08-23 Olin Mathieson Apparatus for forming hollow sheet metal panels
DE1104917B (en) * 1954-12-09 1961-04-20 Perry J Rieppel Process for the production of hollow bodies by blowing layered metal parts
DE1110119B (en) * 1949-11-18 1961-07-06 Olin Mathieson Method for producing hollow sheet metal bodies
US3018543A (en) * 1955-07-13 1962-01-30 Stolle Corp Chambered sheet metal laminates and method of making
US3024002A (en) * 1957-10-17 1962-03-06 Stolle Corp Heat exchanger
US3045618A (en) * 1954-07-22 1962-07-24 Olin Mathieson Method for forming hollow sheet metal panels
US3095843A (en) * 1958-02-13 1963-07-02 Reynolds Metals Co Passageway panel expansion apparatus
FR2460179A1 (en) * 1979-07-05 1981-01-23 Bertucci Albert Bi-wall sheet metal heat exchanger - has outer jacket fixed by drilling stamping and locating sheets fixed by welded columns in drill holes
FR2500612A1 (en) * 1981-02-20 1982-08-27 Arbel Undustrie Sa Method of making heat exchanger - has two plates pinched together and pressurised to move them slightly apart

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110119B (en) * 1949-11-18 1961-07-06 Olin Mathieson Method for producing hollow sheet metal bodies
US2882588A (en) * 1954-03-10 1959-04-21 Metal Specialty Company Simultaneous pressure welding and pressure forming
US2949875A (en) * 1954-07-22 1960-08-23 Olin Mathieson Apparatus for forming hollow sheet metal panels
US3045618A (en) * 1954-07-22 1962-07-24 Olin Mathieson Method for forming hollow sheet metal panels
DE1104917B (en) * 1954-12-09 1961-04-20 Perry J Rieppel Process for the production of hollow bodies by blowing layered metal parts
US3018543A (en) * 1955-07-13 1962-01-30 Stolle Corp Chambered sheet metal laminates and method of making
US3024002A (en) * 1957-10-17 1962-03-06 Stolle Corp Heat exchanger
US3095843A (en) * 1958-02-13 1963-07-02 Reynolds Metals Co Passageway panel expansion apparatus
FR2460179A1 (en) * 1979-07-05 1981-01-23 Bertucci Albert Bi-wall sheet metal heat exchanger - has outer jacket fixed by drilling stamping and locating sheets fixed by welded columns in drill holes
FR2500612A1 (en) * 1981-02-20 1982-08-27 Arbel Undustrie Sa Method of making heat exchanger - has two plates pinched together and pressurised to move them slightly apart

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