GB997811A - Method for forming articles from thin sheet material - Google Patents

Method for forming articles from thin sheet material

Info

Publication number
GB997811A
GB997811A GB13398/62A GB1339862A GB997811A GB 997811 A GB997811 A GB 997811A GB 13398/62 A GB13398/62 A GB 13398/62A GB 1339862 A GB1339862 A GB 1339862A GB 997811 A GB997811 A GB 997811A
Authority
GB
United Kingdom
Prior art keywords
sheet
thin
laminated
cupping
thick
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
GB13398/62A
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.)
ThyssenKrupp Budd Co
Original Assignee
Budd 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 Budd Co filed Critical Budd Co
Publication of GB997811A publication Critical patent/GB997811A/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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/201—Work-pieces; preparation of the work-pieces, e.g. lubricating, coating
    • 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
    • Y10T29/4981—Utilizing transitory attached element or associated separate material

Landscapes

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

Abstract

997,811. Cupping. BUDD CO. April 6, 1962 [April 19, 1961], No. 13398/62. Heading B3Q. A method of forming a thin metal sheet into deep-drawn configurations is characterized by the steps of bonding the thin metal sheet to a thick metal sheet to produce a laminated sheet, of forming the laminated sheet in a forming machine having a male die, and completely removing said thick sheet of said laminated sheet from the thin sheet article. The laminated sheet 10 is cupped in an hydraulic press comprising an hydraulic cylinder 14 which actuates an upper hold-down ring 16 to grip the sheet against a lower stationary ring 18 with sufficient pressure to prevent buckling during the cupping operation. A cupping die 26 is actuated by an hydraulic cylinder 22. After the cupping operation the thicker sheet 28 is removed by heating or chemical etching after the formed laminated sheet has been annealed to remove any internal stresses created by the cold working. In an embodiment the laminated sheet comprises a thin stainless steel sheet 27 bonded to a relatively thick carbon steel sheet 28 by soldering, brazing, welding or hot roll bonding. The thick sheet is at least five times the thickness of the thin sheet and the blank lying between the blank holders is lubricated to create a uniform coefficient of friction in the blank holders. The hold-down pressure is held constant by providing a draw bead groove and mating projection on the hold-down rings. The thin sheet maintains its original thickness during the deep drawing operation. In another embodiment a hemisphere is formed from a laminated blank comprising a sheet of stainless steel sandwiched between two supporting layers of carbon steel. Two such hemispheres may be welded together to form containers for rockets or missiles. Specification 871,269 is referred to.
GB13398/62A 1961-04-19 1962-04-06 Method for forming articles from thin sheet material Expired GB997811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US104169A US3135045A (en) 1961-04-19 1961-04-19 Method for forming articles from thin sheet material

Publications (1)

Publication Number Publication Date
GB997811A true GB997811A (en) 1965-07-07

Family

ID=22298998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13398/62A Expired GB997811A (en) 1961-04-19 1962-04-06 Method for forming articles from thin sheet material

Country Status (2)

Country Link
US (1) US3135045A (en)
GB (1) GB997811A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110479843A (en) * 2019-09-23 2019-11-22 北京航星机器制造有限公司 A kind of shaping dies and multi-step forming method of hemispherical member

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3418112A (en) * 1966-10-07 1968-12-24 United Aircraft Corp Method for forming seamless pressure vessels
US3520170A (en) * 1967-01-26 1970-07-14 O C Wilson Jr Louver or vane rail punching or stamping machine
DE2406226C3 (en) * 1973-02-20 1978-05-24 Edsger Wybe Van Utrecht Dijk (Niederlande) Method and machine for bending sheet metal around pipe sections
JPS5339183B2 (en) * 1974-07-22 1978-10-19
CN104624790A (en) * 2013-11-13 2015-05-20 哈尔滨建成集团有限公司 Air rectification cap deep drawing die with deep drawing beads
CN105149443B (en) * 2015-08-21 2017-04-12 哈尔滨建成集团有限公司 Rigid blank holder deep drawing die for thin-walled hemispheric high-pressure membrane with flange
CN114799001B (en) * 2022-03-30 2024-07-16 西安航天发动机有限公司 Thermal processing method for forming hemispherical blank of large-size storage tank by adopting single-action hydraulic press

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US200727A (en) * 1878-02-26 Improvement in methods of making copper bottoms for domestic boilers
US1060361A (en) * 1913-01-06 1913-04-29 Theodore W Foster & Bro Company Process of manufacturing plated goods.
GB180489A (en) * 1921-03-29 1922-06-01 Krupp Ag An improved process for further treating plate-shaped bodies, say, by pressing or drawing
US2302857A (en) * 1940-06-28 1942-11-24 Gen Motors Corp Drawing compound applicator
US2302953A (en) * 1940-07-23 1942-11-24 Hydraulic Dev Corp Inc Method of metal stretching, using blank-holder types of presses
US2409254A (en) * 1944-06-02 1946-10-15 Solar Aircraft Co Apparatus for die-forming sheet material
US2900943A (en) * 1953-10-19 1959-08-25 Smith Corp A O Cushioning means for double action presses
US2865626A (en) * 1955-02-09 1958-12-23 Niagara Machine & Tool Works Cushion for power presses
US3040684A (en) * 1955-07-18 1962-06-26 Hillgren Mfg Co Apparatus for drawing door knobs
US2989019A (en) * 1957-05-20 1961-06-20 Budd Co Method of deep drawing sheet material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110479843A (en) * 2019-09-23 2019-11-22 北京航星机器制造有限公司 A kind of shaping dies and multi-step forming method of hemispherical member
CN110479843B (en) * 2019-09-23 2020-10-02 北京航星机器制造有限公司 Forming die and multi-pass forming method of hemispherical component

Also Published As

Publication number Publication date
US3135045A (en) 1964-06-02

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