请教车削方牙螺纹的刀具

其实都是成型刀，至于刀具的具体加工方法跟各自的生产条件不同而有差异。所用材料和各种刀具的参数得根据实际加工件的材料和尺寸要求来确定。

根据曲线方程，用线切割将刀具切割成型，
因为锋钢刀具不易电火花线切割，硬质合金几乎不能线切割加工，
可以线切割出与牙形的吻合模型，据此手工刃磨出成型刀具。
The next generation keyboard, future keyboard!
challenge and subverting the global computer keyboard, keyboard music instruments in 25 years ago，
The pioneer of the Chinese people firstly entered this area. who sent it into the modern house of CEO of Microsoft?
To challenge AT&T of the United States by improving communication deficiencies
Improving communication deficiencies, Chinese people challenge AT&T of the United States.