B - Operations – Transporting – 23 – D
Patent
B - Operations, Transporting
23
D
76/3
B23D 3/00 (2006.01) A61F 13/20 (2006.01)
Patent
CA 1086099
PROCESS FOR MANUFACTURING A CROSS SLOT HEAD PUNCH Abstract of the Disclosure A process and an apparatus for manufacturing a cross- slot head punch. The punch is made from a cylindrical blank having a top end face with a flat turned cone and a flat bottom end face. The flat turned cone has an angle ? within the 124- 140° range and a cross-slot head is formed therein while the blank is in a cold state. This cross-head is carried out in one single step and the external diameter and length of the blank is not effected. To form the head, the cylindrical blank is placed in a bore of a holding fixture and the punch enters that bore and deforms the top end face. The blank is then ejected from the bore.
313487
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Sack & Kiesselbach
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