Method of and apparatus for electroerosively machining a 3D cavi

Details Method of and apparatus for electroerosively machining a 3D cavi Method of and apparatus for electroerosively machining a 3D cavi

1980-09-25

1982-12-21

Shaw, C. C.

Electric heating

Metal heating

Cutting or disintegrating

219 69V, 219 69C, B23P 112

Patent

active

043651330

ABSTRACT:
A method of and an apparatus for electroerosively machining a 3D cavity in a workpiece using a slender tool electrode, e.g. in the form of a wire or thin rod, which is generally independent of desired cavity in shape and axially juxtaposed with the workpiece to define a liquid-flooded machining gap therebetween. The slender tool electrode and the workpiece are relatively displaced three-dimensionally along mutually orthogonal three independent axes so that the slender tool electrode moves in a scanning manner over the workpiece surface while an ultrasonic vibration is imparted to the scanning slender tool electrode. A machining wear of the electrode is sensed in response preferably to the vibration signal and the wear-compensation feed is effected to axially advance the slender electrode independently of the three-dimensional cavity-forming movement to the tool electrode and the workpiece.

REFERENCES:
patent: 3072777 (1963-01-01), McKechnie
patent: 3591761 (1971-07-01), Bederman
patent: 3673372 (1972-06-01), Veroman et al.

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