Wire cut electric discharge machining control method

Details Wire cut electric discharge machining control method Wire cut electric discharge machining control method

1980-09-15

1982-12-28

Shaw, C. C.

Electric heating

Metal heating

Cutting or disintegrating

219 69W, B23P 108

Patent

active

043663591

ABSTRACT:
A command average machining current It(n) corresponding to change of a workpiece thickness is given by the following equations: ##EQU1## wherein the reference Ia(n) designates an actual average machining current Ia(n) at the workpiece thickness (Tn); It(n) designates an average machining current of the control command; Fn designates an actual machining feed rate; Ia(o) designates an actual average machining current at the initiation of the machining; S(o) designates a machining width; and To designates a workpiece thickness.
The command average machining current It(n) is compared with the actual average machining current and the electric condition is changed and controlled to approach the actual average machining current to the command average machining current It(n) thereby controlling the work groove width to be constant in an electric discharge machining of the workpiece with a wire electrode.

REFERENCES:
patent: 4052583 (1977-10-01), Inoue

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