船舶机械零件的深孔工艺及其改进方法

很多机械零件具有深孔，如车床主轴、液压传动轴的油缸等。加工深孔时，刀具细长，钻头容易将孔钻偏，使孔中心歪斜；切屑不易排出，散热能力较差，刀具易磨损；当工件精度和光洁度要求较高时，受刀具刚度的限制，需要采取适当措施，以保证工件质量和生产效率。

Deep-hole technique for ship mechanical parts and its improving method

Many mechanical parts such as principal axis and the cylinder of hydraulic transmission. When a deep hole is made, the reamer is so vimineous that the hole is easy to be slanting. At the same time, the scraps are hard to be removed, the heat is hard to be given off and the reamer is abraded easily. While the high precision and smoothness of a workpieee required, some proper measures should be taken to ensure the producing effect and the quality of the workpiece since the limit rigidily of the reamer exists.