GB909837A - Method of and apparatus for expanding passageway panels on one side - Google Patents

Method of and apparatus for expanding passageway panels on one side

Info

Publication number
GB909837A
GB909837A GB2811/59A GB281159A GB909837A GB 909837 A GB909837 A GB 909837A GB 2811/59 A GB2811/59 A GB 2811/59A GB 281159 A GB281159 A GB 281159A GB 909837 A GB909837 A GB 909837A
Authority
GB
United Kingdom
Prior art keywords
pressure
expansion
holding
panel
liquid
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
GB2811/59A
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.)
Reynolds Metals Co
Original Assignee
Reynolds Metals Co
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 Reynolds Metals Co filed Critical Reynolds Metals Co
Publication of GB909837A publication Critical patent/GB909837A/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
    • B21D26/021—Deforming sheet bodies
    • B21D26/027—Means for controlling fluid parameters, e.g. pressure or temperature
    • 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
    • B21D26/059—Layered blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49366—Sheet joined to sheet
    • Y10T29/49369—Utilizing bond inhibiting material
    • Y10T29/49371—Utilizing bond inhibiting material with subsequent fluid expansion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

909,837. Making heat-exchanger panels; stamping. REYNOLDS METALS CO. Jan. 26, 1959 [Jan. 29, 1958], No. 2811/59. Classes 83 (2) and 83 (4). A method for expanding a pressure-welded passageway panel on one side comprises applying a holding liquid under pressure against one face of an unexpanded panel to press its other face tightly against a rigid surface, introducing an expansion liquid under higher pressure into the panel to expand its passageway system on the said one face while the other panel face is held against the said surface thereafter reducing the pressure of the expansion liquid until it reaches a value neutralizing the pressure of the holding liquid and then simultaneously releasing both liquid pressures. Apparatus for carrying out the method comprises an expansion press having an upper flat movable platen 3 and a lower stationary platen 4 provided with a holding pressure cavity encircled by a sealing ring 5; an hydraulic system having a motor 6 for opening and closing the press and, for expanding the panel, a processing section including means for supplying holding and expansion liquid pressure; and a control system having (a) a manually-actuated electrical closing circuit for closing the press, (b) a holding circuit operating, in response to the hydraulic pressure which holds the press closed, means for supplying the holding liquid pressure to the cavity, (c) an expansion circuit, responsive to a predetermined holding pressure, to supply expansion liquid pressure to the passageway system of the panel, (d) an electrical timer circuit arranged to be closed and energized in response to a predetermined expansion pressure and to operate when energized by ticking off a predetermined time interval, e.g. 2 to 3 seconds before terminating the expansion operation, and (e) means for thereafter releasing the hydraulic pressures according to the invention by operating a dump valve 26 to reduce the expansion pressure (approximately 3000 p.s.i.) to the holding pressure (approximately 1000 p.s.i.) whereupon a check valve 30 connects both systems together, thus causing them to lose pressure at the same time. Reference has been directed by the Comptroller to Specification 795,099.
GB2811/59A 1958-01-29 1959-01-26 Method of and apparatus for expanding passageway panels on one side Expired GB909837A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US711882A US2966730A (en) 1958-01-29 1958-01-29 Method of and apparatus for expanding passageway panels on one side

Publications (1)

Publication Number Publication Date
GB909837A true GB909837A (en) 1962-11-07

Family

ID=24859910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2811/59A Expired GB909837A (en) 1958-01-29 1959-01-26 Method of and apparatus for expanding passageway panels on one side

Country Status (2)

Country Link
US (1) US2966730A (en)
GB (1) GB909837A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127860A (en) * 1959-06-23 1964-04-07 Olin Mathieson Fabrication of hollow articles
US3180011A (en) * 1960-09-01 1965-04-27 Olin Mathieson Hollow article manufacture by fluid pressure
US3103193A (en) * 1960-09-29 1963-09-10 Reynolds Metals Co Method of and apparatus for inflating laminated sheets

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1561312A (en) * 1925-02-20 1925-11-10 Cutler Arthur Edward Apparatus for forming or shaping articles from sheet material
US2522915A (en) * 1946-11-08 1950-09-19 Standard Thomson Corp Apparatus for producing bellows folds in tubing
US2690002A (en) * 1949-11-18 1954-09-28 Olin Ind Inc Method of making hollow sheet metal fabrications having a plurality of interconnected passageways
US2662273A (en) * 1950-03-24 1953-12-15 Gen Motors Corp Method of making heat exchange structures
US2728317A (en) * 1951-10-23 1955-12-27 Walton S Clevenger Apparatus for hydraulic die forming
US2866429A (en) * 1955-12-09 1958-12-30 Reynolds Metals Co Semi-automatic apparatus for expanding a pressure welded passageway panel

Also Published As

Publication number Publication date
US2966730A (en) 1961-01-03

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