Electric heating – Metal heating – Cutting or disintegrating
Patent
1987-04-16
1988-11-01
Pellinen, A. D.
Electric heating
Metal heating
Cutting or disintegrating
219 69W, B23H 100, B23H 710
Patent
active
047822031
ABSTRACT:
A wire guide directs a wire electrode from a refeed mechanism in an electrical discharge machine EDM to a workpiece. The wire guide has ceramic inserts defining a precision guide slot for the electrode and wherein one of the inserts is carried by a deflectable member spring biased to damp the electrode so as to maintain concentricity of holes formed by the electrode and thereby closely control the hole diameter.
REFERENCES:
patent: 3517153 (1970-06-01), Check
patent: 3943322 (1976-03-01), Lehmann et al.
patent: 4205212 (1980-05-01), Ullmann et al.
patent: 4364812 (1982-12-01), Inoue
patent: 4605834 (1986-08-01), Inoue
patent: 4611107 (1986-09-01), Inoue
patent: 4613740 (1986-09-01), Ichikawa
patent: 4686344 (1987-08-01), Nakayama
Barbulescu George
Check John M.
Johnson Myron
Evans Geoffrey S.
Evans John C.
Pellinen A. D.
Raycon Textron Inc.
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