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两端不通凹半圆弧(如常用的阀体锻模,见图1)的加工,过去我厂在无电脉冲机床时,是在立铣床上进行的。在加工时由于“赶”刀而形成圆弧,因此要求工人具有熟练的技术,劳动强度也较大。加工后还需要钳工修整,所费工时很多,质量也难保证。有了电脉冲机床后,上述情况已有很大改善。但是,电蚀加工仍存在不少缺点:第一,辅助工时太多,因为做一套电极模具所需工时比电蚀加工一个工件还多;第二,加
Not open at both ends of the semi-circular arc (such as the commonly used valve forging die, see Figure 1) processing, in the past I plant in the absence of pulse machine, is the milling machine. In the processing of “catch” the knife and the formation of arcs, requiring workers with skilled technology, labor-intensive. After the fitter also need fitter dressing, the time and labor costs, quality is difficult to guarantee. With the electric pulse machine, the above situation has been greatly improved. However, there are still many shortcomings of the electric erosion machining: First, the auxiliary working time is too much because the working time required to make one set of electrode mold is more than one part of the electric erosion machining. Second,