05740692 is referenced by 4 patents and cites 9 patents.

An apparatus, for forming a container body from a sheet metal component, comprises a punch 31, an annular die 10, axially aligned with the punch, and an annular blankholder 32 surrounding the punch so arranged that relative motion as between the blankholder 32 and an end face 12 of the die restrains the periphery of the sheet metal component as the punch enters the annular die; the die 10 has a spherical bearing surface 17 centered on the longitudinal punch axis, and a die holder 20 has an arcuate surface 22 to co-operate with the spherical surface 17 of the die to impose a restraining force on sheet metal between the die face 12 and the blankholder, 32.

Title
Containers
Application Number
8/643248
Publication Number
5740692
Application Date
May 2, 1996
Publication Date
April 21, 1998
Inventor
Paul Robert Dunwoody
Wantage
GB
Agent
Diller Ramik & Wight PC
Assignee
Carnaudmetalbox
DE, US
IPC
B21B 25/00
B21D 22/21
B21D 22/00
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