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
After analyzing the effect factors of the cutting force in peripheral milling, the paper establishes a steady cutting force allowance model.