PVD涂层与未涂层硬质合金刀具切削力的对比试验研究

Experimental Investigation on Contrasting Cutting Forces of Coated-PVD Cemented Carbides Inserts with Non-Coated Cemented Carbides Inserts

应用同型号未涂层、TiN涂层和TiCN涂层硬质合金刀具进行切削试验 ,用KISTLER三向测力仪、电荷放大器和PC机组成的切削力数据采集系统进行三向切削力采集。试验表明在切削过程中PVD涂层硬质合金刀具的切削力随刀具进给量、切削深度、切削速度的变化规律与未涂层硬质合金刀具相同 。

The cutting experiments were done in which the non coated, coated TiN and coated TiCN cemented carbides inserts were used to turn 42CrMo steel workpieces. The cutting forces were picked up with data acquisition system that was consisted of the KISTLER a measuring instrument for cutting forces in three distances, a charge amplifier and a computer. The experiment results showed that the change regularity of the coated cutter's cutting force with the cutting depth, cutting speed and feed rate is same as the non coated'. But the cutting force of the coated cutter is obviously smaller than the non coated'.