Boring as far as possible out smaller distances in boring bar clamping, but need to pay attention to the cutting edge length should meet the machining allowance, and is conducive to the chip.
镗刀在镗刀杆上装夹时应尽可能伸出较小的距离，但需要注意切削刃伸出长度应符合加工余量，并有利于排屑。
2
When machining vibratory drums on NC boring and milling machine, photoelectric edge detector instead of the original alignment method was used to achieve better result.
采用数控镗铣床加工振动轮时，利用光电式寻边器替代原有的校正方式可以取得比较好的效果。
3
The influences of flank surface and edge quality of PCD cutting tool on cutting surface quality when machining nonferrous metal are studied in this paper.