Electrical machining apparatus

Details Electrical machining apparatus Electrical machining apparatus

1980-10-30

1983-10-04

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219 69V, 219 69D, 2041297, B23P 108

Patent

active

044081138

ABSTRACT:
An electrical machining (e.g. EDM) apparatus having a worktank for containing a machining liquid and having a workpiece immersed therein; and a tool electrode positionable to be juxtaposed with the workpiece in the worktank to define an electrical machining gap therebetween filled with the machining liquid. The apparatus includes an ultrasonic assembly disposed in the worktank and comprises a head member and a support member. The head member is constituted by a housing having an ultrasonic transducer element supported therein and an opening for permitting only one of the two opposite surfaces of the transducer element to be held in contact with the machining liquid and to communicate with the region of the machining gap via the machining liquid. The head member is supported in the worktank by the support member, which may include a flexible multi-joint pipe or linkage, so that the opening is directed selectively towards the region of the machining gap. The transducer is energized by a power supply to provide ultrasonic vibrations, preferably in excess of 50 kHz and up to 10 MHz, which are transmitted by the machining liquid preferentially to the machining gap region.

REFERENCES:
patent: 3378473 (1968-04-01), Inoue

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