Method and apparatus for electrically cutting work pieces with a

Details Method and apparatus for electrically cutting work pieces with a Method and apparatus for electrically cutting work pieces with a

1979-08-30

1982-02-23

Shaw, C. C.

Electric heating

Metal heating

Cutting or disintegrating

2041291, 219 69D, 219 69W, B23P 102

Patent

active

043170196

ABSTRACT:
A method of electrically cutting a work piece with a wire electrode in which while electric current is applied between the work piece and the wire electrode through a cutting liquid in a cutting gap formed therebetween. The work piece and the wire electrode are relatively moved to each other, to cut the work piece into an article having a desired configuration. The specific resistance of the cutting liquid is controlled to control the width of a groove cut in the work piece. Furthermore, an apparatus for practicing the method is disclosed, which comprises a cutting liquid mixing and supplying device for controlling the specific resistance of the cutting liquid to a desired value and supplying into a cutting gap.

REFERENCES:
patent: 3417006 (1968-12-01), Inoue
patent: 3440156 (1969-04-01), Dickson
patent: 3731044 (1973-05-01), Ullmann et al.

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