Machining of CFRP composites is usually described as a challenging process from tool life and surface quality perspectives. To achieve a flawless machined surface at reasonable cutting tool life/cost, an optimum combination of cutting tool material and geometry is the key. The cutting tool angles are of importance as these dictate the cutting mechanism as well as the cutting edge robustness and the introduction of vibration to the machining process opens up new horizons of improvement and stirs further research questions. This article investigates the effect of tools with different geometry possessing different rake angles when used in ultrasonic-assisted edge trimming operation dealing with multidirectional CFRP laminates. A full-factorial experimental design was adopted to analyze the effect of process parameters typically cutting speed, feed rate, rake angle, amplitude, and their interactions. Machining performance indicators were captured which were the cutting forces, tool wear, chip temperature, and surface roughness. The results showed that UAM mode contributed to an increase in the cutting forces, tool wear, and chip temperature compared to the conventional mode. On the other hand, UAM mode improved the quality of the machined surface. Additionally, the ultrasonic mode enhanced the material removal mechanism using a tool with a negative rake angle.

从刀具寿命和表面质量的角度来看，CFRP 复合材料的加工通常被描述为具有挑战性的过程。为了以合理的刀具寿命/成本获得完美的加工表面，刀具材料和几何形状的最佳组合是关键。刀具角度很重要，因为它们决定了切削机制以及切削刃的坚固性，并且将振动引入加工过程开辟了新的改进视野并引发了进一步的研究问题。本文研究了具有不同前角的不同几何形状的工具在用于处理多向 CFRP 层压板的超声波辅助修边操作时的影响。采用全因子实验设计分析工艺参数的影响，典型的切削速度，进给率、前角、振幅及其相互作用。加工性能指标包括切削力、刀具磨损、切屑温度和表面粗糙度。结果表明，与传统模式相比，UAM 模式有助于增加切削力、刀具磨损和切屑温度。另一方面，UAM 模式提高了加工表面的质量。此外，超声波模式使用具有负前角的刀具增强了材料去除机制。另一方面，UAM 模式提高了加工表面的质量。此外，超声波模式使用具有负前角的刀具增强了材料去除机制。另一方面，UAM 模式提高了加工表面的质量。此外，超声波模式使用具有负前角的刀具增强了材料去除机制。