Method for the initial cutting of a workpiece by electrical disc

Details Method for the initial cutting of a workpiece by electrical disc Method for the initial cutting of a workpiece by electrical disc

1992-03-20

1993-06-15

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

219 6917, B23H 702, B23H 720, B23H 704

Patent

active

052201465

ABSTRACT:
A method for the initial cutting of a workpiece by electrical discharge cutting by a wire electrode, in which the values for the specific cutting parameters are reduced along an introduction path in the workpiece at least in part as compared with the values of the cutting parameters for the actual cutting contour, and at least some of the reduced values of the cutting parameters are continuously changed until the values intended for the actual cutting contour are reached.

REFERENCES:
patent: 4291220 (1981-09-01), Lessmann et al.
patent: 4868760 (1989-09-01), Obara
patent: 5136139 (1992-08-01), Gilliland
patent: 5185507 (1993-02-01), Yasui
Patent Abstracts of Japan, vol. 11, No. 175, Jun. 1987 for Janpanese Patent Publication 62-6798.
Patent Abstracts of Japan, vol. 9, No. 245, Aug. 1985 for Japanese Patent Publication 60-99480.
Patent Abstracts of Japan, vol. A, No. 240, Nov. 1984 for Japanese Patent Publication 59-20368.
Ryabov et al, "Local Hardening of Components of Aluminium Alloys", Welding International 1988, No. 6, pp. 510-513.

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