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前角与后角是影响金属切削刀具性能的主要几何参数。对于图1所示带有螺旋槽的小规格棒铣刀(D≤14mm)周齿前后角的测量,一直是个棘手的问题.由于测量面小,在测角器上用样板看
The rake angle and relief angle are the main geometrical parameters that influence the performance of metal cutting tools. It has been a thorny problem to measure the anterior and posterior angles of the peripheral teeth of a small gauge rod mill (D ≤ 14 mm) with a spiral groove as shown in Fig. 1. Due to the small measuring surface,