Research on unconventional laser machining

Conventional laser machining achieve the purpose by using the high temperature to melt and gasify the material, but the heat affecting zones and micro-crack in machined areas are the main problems. The coupling technique of laser and water-jet, and the machining performances in the process of water-jet guided laser machining (WJGLM) were mainly discussed. The transmitting of temperature field and stress field in the process of volumetric heat laser machining glass (VHLMG), multi-layer glasses laser cutting and laser cutting in curve paths with VHLMG were carried out. The two kinds of unconventional laser machining technologies including WJGLM and VHLMG were analyzed and simulated in theory. The key technology of two unconventional laser machining were explained, and the experimental systems for the above two machining technology were established. Many experimental results show the well machining performances. The theoretical analysis and simulation results are verified by experimental data and a reasonable correlation is found. It establishes a theoretical and experimental foundation for actual machining.