我们在切断大直径棒料和切深槽时,经常发生打刀现象,使零件报废和卡盘的损伤。打刀的主要原因是切断刀伸出较长,刀的力臂长,为距大,造成刀具和刀架刚性差,切断时引起零件和车刀的振动,使车刀产生变形,失去稳定切削条件。从实践中,我们找到了切断大直径棒料的方法,现介绍如下。 When we cut large diameter bars and cut deep groove, we often have the phenomenon of knives, parts scrapped and chuck damage. The main reason for striking the knife is that the cutting knife extends for a long time and the arm length of the knife is long, resulting in a large gap between the tool and the knife holder. As a result, the parts and the turning tool vibrate when the cutter is cut, causing the turning tool to deform and lose the stable cutting condition. In practice, we have found a way to cut large diameter bar material, are described below.