Study on the coupling effect of laser and diamond tool

• Published in: Journal of physics. Conference series 2021-01, Vol.1750 (1), p.12053
• Main Authors: Mingqiang, Xia, Guangfeng, SHI, Jiaolong, BI, Jiyu, GAO, Dawei, YU, Guoquan, SHI
• Format: Article
• Language: English
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/1750/1/012053

In the process of turning hard and brittle materials with laser in-situ assisted diamond tools, the energy of the laser beam will be lost and the laser heat absorbed by the diamond tools will produce temperature fields and thermal deformations, which will affect the machining accuracy. In order to study the interaction between laser and diamond tool during laser in-situ assisted turning, a finite element model of laser and diamond tool transmission was established using COMSOL Multipysics, and the energy deposition formed on the rake face under different incident conditions was analyzed. The temperature field changes and the rule of tool tip deformation of diamond tools during laser irradiation are shown. Studies have shown that the greater the negative rake angle of the tool, the greater the power density deposited by the laser on the rake face. When the incident angle of the laser is 20°, the power density of the laser on the rake surface reaches the maximum. Under the laser irradiation, the temperature and the deformation of the tool tip increase with time, and finally reach a steady state. The research provides theoretical basis for improving the precision of laser in-situ assisted diamond processing.