如何更有效地进行切削,始终是金属切削领域中的重要问题,对此,关键在于如何处理好刀具耐用度T 和生产率(金属切除率)R 之间的关系,要靠合理地选择切削用量来解决,这对于切削钛合金来讲更为重要。这是由于钛合金的导热性差,在切削时,刀具切削部分的温度很高,因此刀具耐用度极低。为了提高刀具耐用度,有时只能被迫降低切削用量,但这样生产率就降低了,反之,为了提高生产率就要增加切削用量,这样刀具耐用度就要下降,所以要确定一种既照顾到刀具耐用度又照顾到生产率恰到好处的合理切削用量就是本课题研 How to cut more effectively is always an important issue in the field of metal cutting. The crux of the problem is how to handle the relationship between the tool durability T and the productivity (metal removal rate) R. It depends on the reasonable choice of cutting amount Solved, which is more important for cutting titanium. This is due to the poor thermal conductivity of titanium alloy, the cutting part of the cutting tool temperature is high, so the tool durability is very low. In order to improve the durability of the tool, sometimes only to reduce the amount of cutting, but this productivity is reduced, on the contrary, in order to increase productivity will increase the amount of cutting, so that the tool durability will decline, so to determine a not only take care of the tool Durability and take into account the productivity just right cutting amount is the subject of research