【摘要】 通过与常规切削、激光辅助切削和超声辅助切削方法的切削力和表面质量进行对比分析得出，激光超声复合切削过程中的切深抗力（F_y）、主切削力（F_z）以及进给抗力（F_x）平均切削力分别减小了约48.70%、50.87%、44.32%,40.01%、47.57%、35.79%,26.94%、19.36%、19.75%。此外，表面粗糙度Ra值分别减小了约70.96%,49.51%和57.61%，证明激光超声复合切削更有利于加工硬质合金。通过正交试验分析可知，激光超声复合切削过程中的切削力随激光功率的增大而减小，随着切削速度的增大先减小后增大，与进给量和切削深度呈正相关。更多还原

【Abstract】 Through comparison and analysis of the cutting force and surface quality between conventional cutting,laser-assisted cutting, and ultrasonic-assisted cutting methods, it has been determined that the cutting depth resistance(F_y), main cutting force(F_z) and feed resistance(F_x) in laser ultrasonic compound cutting are reduced by approximately 48. 70%, 50. 87%, 44. 32%; 40. 01%, 47. 57%, 35. 79%; 26. 94%, 19. 36%, 19. 75%, respectively. In addition,the surface roughness Ra values are reduced by approximately 70. 96%, 49. 51%, and 57. 61%, proving that the lase ultrasonic compound cutting method is more advantageous for processing hard alloys. Through orthogonal experimental analysis, it is observed that the cutting force in the lase ultrasonic compound cutting process decreased with the increase in laser power. As the cutting speed increased, the cutting force initially reduced and then increased again, showing a positive correlation with the feed rate and cutting depth.更多还原