Dry-cut EDM with debris sweeping means

Details Dry-cut EDM with debris sweeping means Dry-cut EDM with debris sweeping means

1983-11-08

1986-05-20

Albritton, C. L.

Electric heating

Metal heating

Cutting or disintegrating

15 21R, 51273, 2041291, 219 69R, 219 69D, B23H 100, B23H 738

Patent

active

045903522

ABSTRACT:
An EDM system in which a tool electrode is spacedly juxtaposed with a workpiece to define a machining gap which is substantially open directly to a region of atmospheric air. A non-inflammable (e.g. water-based) machining liquid is injected into the machining gap while electrical discharges are effected therein to electroerosively remove stock from the workpiece and to permit the injected liquid to be at least partially decomposed with a resultant formation of machining products which, growing in amount, are accumulated in a pile as debris on a surface of the workpiece adjacent the machining gap. A brush is provided to sweep the debris, and to substantially remove the piled machining products adjacent the machining gap.

REFERENCES:
patent: 2427588 (1947-09-01), Burnett
patent: 2944465 (1960-07-01), Jones
patent: 3167260 (1965-01-01), Gibbons et al.
patent: 3460294 (1969-08-01), Stumpf
patent: 3476662 (1969-11-01), Inoue
patent: 3600546 (1971-08-01), Niwa et al.
patent: 3626137 (1971-12-01), Bertolasi
patent: 4208256 (1980-06-01), Inoue

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