Laser-Assisted Cutting Technology

This chapter primarily discusses the research on laser-assisted machining (LAM) of difficult-to-cut alloy materials. In order to facilitate the subsequent exposition of LAM processes, an introduction is provided on the generation of lasers and the mechanisms of interaction between lasers and materials. A detailed overview of the current research status of LAM technology is then presented. The primary application of LAM currently lies in the realm of laser heating-assisted machining. By harnessing the ability of lasers to induce material softening and removing the material during this phase, the cutting zone temperature experiences a significant rise. In comparison to traditional machining methods, laser heating-assisted cutting proves highly effective in processing aerospace-grade metal materials that are challenging to machine. It not only reduces cutting forces but also greatly enhances cutting efficiency. Furthermore, the surface quality achieved after laser heating-assisted machining surpasses that of traditional methods. Additionally, this process contributes to improved tool longevity due to reduced cutting loads. Presently, some studies explore the use of laser-induced material modification to facilitate machining, such as laser-induced oxidation-assisted machining. By leveraging laser-induced material oxidation, this approach enhances machinability while mitigating the adverse effects of high temperatures on diamond tools.