GB557125A - Improvements relating to the shaping of cupped metal articles - Google Patents

Improvements relating to the shaping of cupped metal articles

Info

Publication number
GB557125A
GB557125A GB1250842A GB1250842A GB557125A GB 557125 A GB557125 A GB 557125A GB 1250842 A GB1250842 A GB 1250842A GB 1250842 A GB1250842 A GB 1250842A GB 557125 A GB557125 A GB 557125A
Authority
GB
United Kingdom
Prior art keywords
blank
bulge
cupped
head
cartridge
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
GB1250842A
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.)
Pressed Steel Co Ltd
SPS Technologies LLC
Original Assignee
Pressed Steel Co Ltd
Standard Pressed Steel 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 Pressed Steel Co Ltd, Standard Pressed Steel Co filed Critical Pressed Steel Co Ltd
Priority to GB1250842A priority Critical patent/GB557125A/en
Publication of GB557125A publication Critical patent/GB557125A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00Making hollow objects
    • B21D51/16Making hollow objects characterised by the use of the objects
    • B21D51/54Making hollow objects characterised by the use of the objects cartridge cases, e.g. for ammunition, for letter carriers in pneumatic-tube plants

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

557,125. Heading cartridge cases &c. DAVENPORT, S., and PRESSED STEEL CO., Ltd. Sept. 4, 1942, No. 12508. [Classes 83 (ii) and 83 (iv)] In the production of headed cartridge cases and like articles from cupped blanks, the blank is subjected at an early stage in the drawing operations to a single indenting operation that forms an axially projecting bulge round the border of the under surface of the head and also tapers the end of the case adjacent the head. After two draws from a circular disc the cupped blank is indented by a punch 11, Fig. 2, in a ring die 12 enclosing a counter die 13 to form an axial bulge 18 and a taper 15. At the same time a central indentation is formed to receive the pressure cap &c. The blank then undergoes a number of drawing and annealing operations to reduce the walls of the cartridge to finished form after which a single heading operation transfers the metal of the bulge 18 to form the flange 20, Fig. 3, and produces an inturned indent 30 so that burring is eliminated in the subsequent drilling and tapping.
GB1250842A 1942-09-04 1942-09-04 Improvements relating to the shaping of cupped metal articles Expired GB557125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1250842A GB557125A (en) 1942-09-04 1942-09-04 Improvements relating to the shaping of cupped metal articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1250842A GB557125A (en) 1942-09-04 1942-09-04 Improvements relating to the shaping of cupped metal articles

Publications (1)

Publication Number Publication Date
GB557125A true GB557125A (en) 1943-11-04

Family

ID=10005890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250842A Expired GB557125A (en) 1942-09-04 1942-09-04 Improvements relating to the shaping of cupped metal articles

Country Status (1)

Country Link
GB (1) GB557125A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3327171A1 (en) * 1983-02-25 1984-08-30 Simmel S.p.A., Castelfranco Veneto, Treviso BOTTLE FOR TECHNICAL GAS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3327171A1 (en) * 1983-02-25 1984-08-30 Simmel S.p.A., Castelfranco Veneto, Treviso BOTTLE FOR TECHNICAL GAS

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