EDM Method and apparatus utilizing successively displaced magnet

Details EDM Method and apparatus utilizing successively displaced magnet EDM Method and apparatus utilizing successively displaced magnet

1980-05-16

1982-12-28

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219123, 219 69E, 219 69G, 204156, 2041292, B23P 108, B23K 908

Patent

active

043663583

ABSTRACT:
Electrical discharge machining with a tool electrode juxtaposed with a workpiece electrode to form a machining gap therebetween in the presence of a machining liquid and wherein a succession of electrical pulses are applied between the tool and workpiece electrodes to produce successive electrical discharges across the machining gap, thereby electroerosively removing material from the workpiece. As material removal proceeds the tool and workpiece electrodes are advanced relatively towards one another in a predetermined feed direction to form a cavity in the workpiece electrode. A magnetic field is applied to the machining gap over a preselected localized area of juxtaposition between the tool and workpiece electrodes; the field is displaced progressively over the entire region of juxtaposition.

REFERENCES:
patent: 1711151 (1929-04-01), Lincoln
patent: 3710067 (1973-01-01), Ullmann et al.

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