Wirecut electrical discharge machine

Details Wirecut electrical discharge machine Wirecut electrical discharge machine

1992-01-17

1993-06-01

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

242 7544, B23H 710

Patent

active

052162176

ABSTRACT:
Accurate control of the tension of a wire electrode in a wirecut electrical discharge machine is achieved by eliminating a direct-current (DC) component from a speed difference signal between a braking section and a recovery section of the machine. The DC component of the speed signal which is eliminated is associated with the stretching of the wire electrode while under tension. As a result, the tension can be maintained constant dynamically as well as statically, thereby improving machining accuracy.

REFERENCES:
patent: 3781490 (1973-12-01), Phillips
patent: 4298781 (1981-11-01), Inoue

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