Electro-erosion machine tools and head assemblies therefor

Details Electro-erosion machine tools and head assemblies therefor Electro-erosion machine tools and head assemblies therefor

1977-04-26

1980-05-27

Reynolds, B. A.

Electric heating

Metal heating

Cutting or disintegrating

B23K 112

Patent

active

042052122

ABSTRACT:
A head assembly for an electro-erosion machine tool comprises, in a housing, a guide for guiding the moving filamentary or strip-form tool electrode and first contact means for supplying erosion energy to the electrode. The scavenging medium is fed into the housing so as to cool the contact means and guide, and leaves it by way of a nozzle through which also the electrode leaves the housing on its way to another head assembly arranged on the opposite side of the location where machining is performed, the scaverging medium being thereby fed to the machining location as an envelope coaxial to the electrode. Second contact means for contacting the workpiece to be machined are fixed to the nozzle and the connections to each contact means are arranged for low inductive energy loss.

REFERENCES:
patent: 2366509 (1945-01-01), Francisco
patent: 2905274 (1959-09-01), Cook
patent: 2968784 (1961-01-01), Mason
patent: 3070770 (1962-12-01), Mercier
patent: 3366771 (1968-01-01), Jackson et al.
patent: 3495258 (1970-02-01), Kholodnov et al.
patent: 3822374 (1974-07-01), Ullmann et al.
patent: 3928163 (1975-12-01), Ullmann et al.
patent: 3943322 (1976-03-01), Lehmann et al.
patent: 4052583 (1977-10-01), Inoue
AGIE Cut DEM 15, "Electrical Discharge Cutting Machine", 9/75.

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