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在机械制造和修理中,经常碰到内四方孔和内六方孔等内多边形零件的加工。加工这类零件,常用钳工划线后在刨床上刨削或插床上插削,其加工效率和精度都较低。如果采用拉削方法加工,就需要有拉床和专用拉刀,而在产量少和机修能力低的情况下,订购价格昂贵的拉刀很不经
In the machinery manufacturing and repair, often encountered within the square hole and the six square hole and other polygon parts processing. Processing of such parts, commonly used after the fitter crossed the planer planing or slotted inserts, the processing efficiency and accuracy are lower. If you use the broaching method of processing, you need a broaching machine and a special broach, and in the case of less output and low mechanical capacity, ordering expensive broaches are not