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由于产品结构上的需要,工件加工面的形状往往有筋、非圆形或带有孔、槽等,因而在机械加工中出现了断续切削。这种断续切削给机械加工带来很大的困难。主要是切削过程中,工件-机床系统受到冲击,使工件的加工质量恶化,机床精度下降以及刀具极易损坏和崩刃.尤其当提高切削速度时容易产生很大的噪声.断续切削通常遇到两种情况:一种是切削过程中,刀具从切入到离开工件的时间或距离是有规律性的,如等分筋、等分槽等。另一种是刀具从切入到离开工件的时间或距离无规律性的,如不规则的毛坯孔、浇
Due to the structural requirements of the product, the shape of the workpiece surface often have ribs, non-circular or with holes, slots, etc., which appeared in the machining intermittent cutting. This kind of intermittent cutting brings great difficulty to the machining. Mainly in the cutting process, the workpiece - the impact of the machine tool system, the workpiece processing quality deterioration, the decline in machine accuracy and the tool is extremely vulnerable to damage and chipping, especially when increasing the cutting speed is prone to loud noise. To two situations: one is the cutting process, the cutting tool from the time to leave the workpiece or the distance is regular, such as equalization bars, such as sub-slot. The other is the cutting tool from the time to leave the workpiece or irregular distance, such as irregular rough hole, pouring