金属切削工作者早就认识到增大铣刀的前角可以产生正效应。但在过去,出于机械及结构方面的考虑,前角度数的大小受到一定的限制。目前这些限制得到了很好克服,其方法是将正前角直接压制在刀片上,使刀片的前角在原有基础上再增大了若干度数。 Metalcutting workers have long recognized that increasing the rake angle of a milling cutter can have a positive effect. However, in the past, due to mechanical and structural considerations, the size of the front angle is subject to certain restrictions. At present, these limitations have been well overcome. The method is to press the positive anterior horn directly on the blade so that the rake angle of the blade increases a certain number of degrees on the original basis.