Cutting toolclearance Angle influence plow chip curl situation as well as fin chip superficial situation, but these two conditions are decision flyaway plow chip heat control abilities.
刀具的后角影响犁削片的卷曲情况以及翅状犁削片的表面情况，而这两个条件是决定翅状犁削片的热控制能力。
2
Clearance Angle. This is the Angle between the machined surface and the underside of the tool called the flank face.
这是机加工面与被称为后侧面的刀具底面夹角。
3
Enlarging the clearance of gear shaping cutter can improve efficiently its cutting condition, the gear surface quality and tool life.