| 摘要 |
PROBLEM TO BE SOLVED: To improve the accuracy of taper machining with a wire electric discharge machine. SOLUTION: The preset reference wire correction amount d is set so as to correspond to the appropriate value of the wire diameter correction amount on a speed control surface, and an adjustment amount on the upper surface/lower surface of the workpiece is made to be proportional to (1-Lu/Lm), (1-L1/Lm). Lu, Lm, and L1 are the machining distances for the upper surface, the speed control surface, and the lower surface respectively. Reference adjustment amount e is previously set as a proportionality coefficient, and the wire diameter correction amounts for the upper surface/lower surface of the workpiece are d+e (1-L1/Lm) and d+e (1-L1/Lm) by making e (1-Lu/Lm) and e (1-L1/Lm) as the adjustment amount. Each axis is controlled to drive a workpiece mounting table, and an upper/lower wire guide so that the path shifting these wire diameter correction amount is taken by a wire electrode at the upper and lower surfaces of the workpiece. COPYRIGHT: (C)2007,JPO&INPIT
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