GB612280A - Working of high tensile sheet metal - Google Patents

Working of high tensile sheet metal

Info

Publication number
GB612280A
GB612280A GB15595/46A GB1559546A GB612280A GB 612280 A GB612280 A GB 612280A GB 15595/46 A GB15595/46 A GB 15595/46A GB 1559546 A GB1559546 A GB 1559546A GB 612280 A GB612280 A GB 612280A
Authority
GB
United Kingdom
Prior art keywords
dimpling
sheets
pressure
metal
high tensile
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
GB15595/46A
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.)
Engineering & Res Corp
ENGINEERING AND RESEARCH Corp
Original Assignee
Engineering & Res Corp
ENGINEERING AND RESEARCH Corp
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 Engineering & Res Corp, ENGINEERING AND RESEARCH Corp filed Critical Engineering & Res Corp
Publication of GB612280A publication Critical patent/GB612280A/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
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/04—Stamping using rigid devices or tools for dimpling

Abstract

612,280. Dimpling; punching. ENGINEERING & RESEARCH CORPORATION. May 23, 1946, No. 15595. Convention date. May 31, 1945. [Class 83 (iv)] A method of dimpling magnesium or other sheet metal which tends to crack when worked cold, consists in forcing a dimpling-tool against the metal with a pressure insufficient to dimple it while cold, maintaining such pressure and momentarily heating the metal at and adjacent the area of contact of the tool so that the pressure applied will effect the desired dimpling. High tensile sheets 30 are placed on a member 42 in electrical connection with a contact 44 and above an anvil 20 surrounding a punch 22. An upper dimpling die 2 connected to the other pole of a source of electrical energy is brought down on to the work and maintained at a given pressure until the heating effected by the flow of current softens the sheets in the area of the die which then descends on to the anvil causing the punching and dimpling of the sheets.
GB15595/46A 1945-05-31 1946-05-23 Working of high tensile sheet metal Expired GB612280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US612280XA 1945-05-31 1945-05-31

Publications (1)

Publication Number Publication Date
GB612280A true GB612280A (en) 1948-11-10

Family

ID=22034451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15595/46A Expired GB612280A (en) 1945-05-31 1946-05-23 Working of high tensile sheet metal

Country Status (1)

Country Link
GB (1) GB612280A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330182A (en) * 1997-10-08 1999-04-14 T & N Technology Ltd Manufacture of gaskets

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330182A (en) * 1997-10-08 1999-04-14 T & N Technology Ltd Manufacture of gaskets
GB2330182B (en) * 1997-10-08 2001-09-05 T & N Technology Ltd Manufacture of gaskets
US6390479B1 (en) 1997-10-08 2002-05-21 Federal-Mogul Technology Limited Manufacture of gaskets

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