Method of and apparatus for manufacturing a gear

Details Method of and apparatus for manufacturing a gear Method of and apparatus for manufacturing a gear

B - Operations, Transporting

21

K

26/174, 78/2

B21K 1/30 (2006.01) B21J 5/06 (2006.01) B21K 21/08 (2006.01)

Patent

CA 1294463

ABSTRACT OF THE DISCLOSURE A gear is manufactured by heating a blank up to a warm working temperature range, upsetting and piercing the blank through warm forging, forming gear teeth on the blank through warm extrusion to produce an intermediate blank which is substantially of a gear shape, and then finishing the gear teeth accurately through cold sizing. The gear can be manufactured highly accurately with a good yield without requiring other intermediate processes such as normalizing and shot blasting.

571907

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