新型键槽铣刀键槽的铣削加工是应用广泛的加工方法之一。传统的键槽铣刀如图１所示。这种铣刀虽已沿用多年，但在加工中仍存在以下缺点与不足：（１）因铣刀侧刃较少（仅为二刃）．加工出的键槽侧面的表面粗糙度较差，一般仅为Ｒ．１３．１５～６．３μｍ。（２）传统键槽... The new keyway milling cutter keyway milling is one of the widely used processing methods. The traditional keyway cutter shown in Figure 1. Although this milling cutter has been used for many years, it still has the following shortcomings and deficiencies in the processing: (1) Due to the fewer milling cutter (only two blades). Surface roughness of the machined keyway flanks is poor, generally only R. 13.15 ~ 6.3μm. (2) Traditional keyway ...