本文通过对电火花线切割加工工艺规律的分析，选取影响工艺效果的主要因素：工件厚度、脉冲宽度、脉冲间隔、脉冲高度，作为输入向量。
By analyzing the law of WEDM processing, this article selects the main factors affecting process: the thickness of the work-piece, pulse width, pulse interval, pulse height, as the input vectors.
该方法具有以下优点：无需知道工件齿形，可同时获得刀具宽度、半径等参数。
The advantages of the method are that the tooth profile of the workpiece is not necessary and the width and radius of the disc cutter can also be given at the same time.
介绍了工件退刀槽宽度小于机床退刀行程的内凹齿轮的齿形加工方法，解决了传统加工方法不易实现的难题之一。
Tooth profile machining of mid-concave gear with narrow run-out groove is introduced, which solves a difficult problem using traditional machining.
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