一般高速钢车刀用坏以后,常常把大车刀改成小车刀。实际上这并不是一种很好的办法。因为车刀体积减小,散热不良,强度就会降低了。我把高速钢车刀(尖刀或偏刀)的两对面上磨了两个刀头(如附图所示),轮流使用,效果良 After the general high-speed steel turning tool is worn, the turning tool is often changed into a turning tool. In fact this is not a good idea. Because the turning tool reduces the volume, poor heat dissipation, strength will be reduced. I put two high-speed steel turning tools (sharp knife or partial knife) on both sides of the ground two heads (as shown in the figure), use turns, the effect is good