Process for manufacturing a cross-slot head punch

Details Process for manufacturing a cross-slot head punch Process for manufacturing a cross-slot head punch

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.

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