| 摘要 |
PROBLEM TO BE SOLVED: To eliminate insufficient machining by correcting errors in straightness caused by consumption of a wire electrode. SOLUTION: The correction angleϕof errors in straightness caused by consumption of a wire electrode is obtained in advance. Correction quantities d1' and d2' on a program surface and an upper surface are obtained by the correction angleϕ. The correction quantities d1' and d2' are added to or subtracted from the wire diameter offset correction quantity of the wire electrode radius and the discharge gap quantity, and correction offset quantities d1 and d2 on the program surface and the upper surface are obtained thereby. A machining shape (a moving path) is corrected by the correction offset quantities d1 and d2, correction movement quantities dlo and dup in the offset direction of the lower and upper wire electrodes are obtained, and the movement instruction of the moving path is obtained for machining. COPYRIGHT: (C)2004,JPO
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