Machining the spark plug hole and counter bore at a compound Angle.

加工火花塞孔与反孔的复合角度。

Using once counter bore grinding technology can overcome these weakness, and its accuracy is able to achieve technical request of finished product and satisfy productive needs.

一次锁口磨削工艺过程能够克服上述缺点，而且它在各项精度方面都能达到成品零件的技术要求，满足生产需要。