Manufacturing method of a molded gear

Details Manufacturing method of a molded gear Manufacturing method of a molded gear

2006-03-23

2009-11-03

Evans, Geoffrey S (Department: 3742)

Electric heating

Metal heating

Cutting or disintegrating

Reexamination Certificate

active

07612310

ABSTRACT:
A gear piece having a hollow portion of the same shape as a molded gear is formed by performing electrical discharge-machining with respect to a metal member that is smaller in thickness than a tooth width dimension of the molded gear, using a first discharging electrode; a chamfer-application piece having a recess portion of the same shape as the chamfered portions of the molded gear is formed by performing electrical discharge-machining by only a predetermined depth with respect to other metal member, using a second discharging electrode; a molding die is assembled by according the hollow portion of the gear piece with the recess portion of the chamfer-application piece; and the molded gear is manufactured by forming a gear member using the molding die.

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patent: 2000-158449 (2000-06-01), None
patent: 2003-90413 (2003-03-01), None

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