Cold forming dies and cold forming process

Details Cold forming dies and cold forming process Cold forming dies and cold forming process

B - Operations, Transporting

21

D

113/70

B21D 37/08 (2006.01) B21C 23/03 (2006.01) B21K 21/10 (2006.01) H01M 2/30 (2006.01)

Patent

CA 2018372

COLD FORMING DIES AND COLD FORMING PROCESS ABSTRACT OF THE DISCLOSURE Progressive step and compound dies are employed in a cold working process to form a metallic preform of selected mass into a precision-finished, pore-free, annular bushing with a mass substantially equal to that of the preform for use as a battery terminal which allows the fracture free spin over connection of the stem of the bushing to a battery cover and the close fit of the bushing on the battery post when the cover is fitted to the battery casing. 24

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