目的 研究适用于碳纤维增强树脂基复合材料(CFRP)铣削加工的极限切削速度，并探讨切削参数与切削力、CFRP加工表面质量之间的关系。方法 基于正交试验，利用高速加工中心及自制的金刚石涂层立铣刀对T300 CFRP板进行铣削试验研究，并采用KISTLER测力仪及PG1000显微镜监测切削力及工件表面质量。结果 适度增加切削速度至300 m/min、进给量至400~600 mm/min，可有效减小切削力;通过极差分析可得出切削参数对主切削力的影响程度从大到小为:径向切削深度＞轴向切削深度＞主轴转速>进给量。当切削力较小且辅以合理的加工参数时(如:切削速度300 m/min、进给量800 mm/min、轴向切深1.5 mm、径向切深3 mm)，可有效避免CFRP工件表面产生毛刺、崩边等缺陷，并获得较高的材料去除率。结论 切削速度范围在264~300 m/min时，有助于改善CFRP工件的表面质量。超过此切削速度会导致切削力增大，增加工件损伤的风险。

Carbon fiber reinforced polymer (CFRP) composites exhibit anisotropic properties, high hardness, and low thermal conductivity, which often result in surface defects such as burrs, chipping, and delamination after milling. Many researchers have focused on high-speed dry cutting and milling methods to investigate the cutting force and surface quality of as-machined CFRP. The cutting velocities studied have typically ranged from 100 to 200 m/min. The work aims to employ super-hard diamond-coated tools to investigate whether higher cutting velocities, ranging from 260 to 380 m/min, can effectively enhance the surface quality of CFRP and also comprehensively analyze the relationship between cutting parameters, cutting force, and workpiece surface quality.