Electric discharge machining of an injection molding cavity

Details Electric discharge machining of an injection molding cavity Electric discharge machining of an injection molding cavity

2006-08-08

2006-08-08

Evans, Geoffrey S. (Department: 1725)

Electric heating

Metal heating

Cutting or disintegrating

Reexamination Certificate

active

07087852

ABSTRACT:
A method for manufacturing an injection mold cavity is provided. A fixture, which has a hollow hole, is used by the method. The method comprises the following steps: first, fix the fixture on a non-machined cavity for forming an assembly; second, the non-machined cavity has a profile fitting approximately to the shape of the hollow hole, the fixture is fixed and position on the cavity; next, apply an electrical discharge machining procedure to the assembly with an electrode; next, applying a polishing procedure to the assembly; finally, removing the fixture from the assembly.

REFERENCES:
patent: 6448530 (2002-09-01), Fujita et al.
patent: 10-86158 (1998-04-01), None

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