The factors of craze and transfiguration are analysed when the workpiece is cutting by wire-EDM machine, at the same time, the particular preventive measures are proposed.

分析了异形工件在进行线切割加工时出现开裂变形的原因，并制定了详细的预防措施。

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Before EDM wire cutting die points of non_straight and non_arc lines, an arc for fitting the curve of the die point is necessary so as to calculate wire_cutting programming data.

电火花线切割非直线和非圆弧的模具刃口前，需先用圆弧拟合模具刃口曲线，以便计算线切割编程数据。

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Mitsubishi wire cutting machine, EDM, drilling machines, grinders, milling machines, drilling bed;

三菱线切割机、火花机、打孔机、磨床、铣床、鑚床；

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