In this paper,an improved method from produce practice on slotting is introduced to the difficulty.And this method has got a satisfied effect in machine processing.

• 本文结合采煤机零件的生产实践,介绍了通过改进插削方法等措施,实现了插削加工高精度深内孔键槽的制造方法,并经生产实践的验证效果很好。