Method for securing cut pieces in spark erosive cutting

Details Method for securing cut pieces in spark erosive cutting Method for securing cut pieces in spark erosive cutting

1986-02-14

1988-05-24

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

2041291, 219 69W, B23H 706

Patent

active

047467827

ABSTRACT:
In the spark erosive cutting of preprogrammed closed contours with the aid of a wire electrode, the electrode is angled in such a way at the end of a closed cutting curve, that a web is left between the workpiece and the fall-off piece. The web only takes up part of the height of cut or the workpiece height. As a result, fault-free surfaces can be obtained along the portion of the cutting curve that is completely cut around the closed contour, at least for a portion of the workpiece height, so that workpieces cut in accordance with this method can be used directly and without reworking.

REFERENCES:
patent: 3474219 (1969-10-01), Steigerwald et al.
patent: 3849624 (1974-11-01), Dulebohn et al.
patent: 4467166 (1984-08-01), Gano et al.
patent: 4484052 (1984-11-01), Inoue
patent: 4486642 (1984-12-01), Inoue
patent: 4598190 (1986-07-01), Balleys

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