Electric heating – Metal heating – Cutting or disintegrating
Patent
1986-08-25
1989-07-11
Pellinen, A. D.
Electric heating
Metal heating
Cutting or disintegrating
B23H 104, B23H 900
Patent
active
048474649
ABSTRACT:
An electrode for use with electric discharge machining in forming a complex spinneret orifice having concentric annular passages is made of a plurality of concentric male segments formed to correspond to the configuration of the passages.
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E. I. Du Pont de Nemours and Company
Evans Geoffrey S.
Pellinen A. D.
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