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前言自从线切割机床15年前在市场上出现以来,其加工性能在切割速度,几何精度,允许工件尺寸、锥度切割等诸方面已取得长足的进步。最近的机床增加了断丝情况下自动回到起始点的功能。然而,穿丝一定要在程序的起始点进行,同时不可避免地损失由起始点返回到实际断丝区域所需要的时间。更严重的是,在工件表面留下了一个不允许的永久性的痕迹。断丝是因为在加工过程中电极丝上负载过大而引起的。这个负载可认为是由以下两部分组成,一是为达到要求精度而在丝上所
Foreword Since the appearance of wire saws on the market 15 years ago, their machinability has made great strides in terms of cutting speed, geometric accuracy, size of workpieces allowed, and taper cutting. Recent machines have added the ability to automatically return to the starting point in the event of a broken wire. However, threading must be done at the beginning of the routine, with the inevitable loss of time required to return from the starting point to the actual broken wire area. More seriously, there is a permanent, impermissible mark on the surface of the workpiece. Broken wire is because the electrode wire in the processing load is too large and caused. This load can be considered as the following two parts, one is to achieve the required accuracy on the wire