在大批量生产中,内六方套经常采用拉削工艺,在单件小批量生产中,尤其是在修配设备的内六方时,常采用的加工方法是在插床上分度插削,这种方法不仅加工效率低,而且难以保证工件的加工精度。我们提出用四边形弧刃插刀,采用展成法加工内六方的方法。这种方法在理论上是成立的。弧刃 In high-volume production, the internal hexagonal sets often use broaching process, in a single small batch production, especially in the equipment when the six-party, the processing method is often used in the slotted interpolation, this method Not only low processing efficiency, but also difficult to ensure the accuracy of the workpiece. We propose to use quadrilateral arc blade knife, the use of exhibition method of processing six methods. This method is theoretically established. Arc blade