Method of manufacturing gear with double teeth patterns involving forging and cold extrusion processes

摘要

The present invention is relating to the method of manufacturing gear with double teeth patterns involving forging and two stage cold extrusion process, a component to be applied in power transmission systems, and more particularly to be used in motor cycles; wherein the whole structural features of said gear, along with its double teeth pattern therein, is achieved during the forging and cold extrusion processes followed by various sub processes.