B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
153/38
B21D 5/00 (2006.01) B21D 5/02 (2006.01)
Patent
CA 1199562
-9- A B S T R A C T "PLATE BENDING METHOD AND APPARATUS" This invention relates to a method of bending a plate, utilising a bending punch 2 and a die 5 into which the bending punch 2 penetrates to a greater or lesser extent depending on the bending angle .alpha.. According to the invention, the magnitude and variation of the bending force required during deformation of the plate unit are determined and utilised to determine the depth h of punch penetration. The invention also describes apparatus for carrying out the method.
429849
Frei Theo
Haenni Eduard
Hammerle Ag
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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