Laser machining technology with the effect of thermal soften and thermal stress

Conventional laser machining used high temperature to melt and gasify the material to achieve the machining purpose. But the thermal soften and thermal stress is harmful to machining in conventional laser machining. Two kinds of unconventional laser machining technologies including laser assisted machining (LAM) and 3-dimensional laser forming (3DLF) that used thermal soften and thermal stress effect were indicated. It was expatiated on the temperature field changes, cutting chips deformation and the machined surface roughness of LAM of ceramic. And explained on the transmitting of temperature field, stress field, deformation performances and scanning strategy planning in 3DLF. The theoretical analysis models of two kinds of laser machining technology were founded, and the experimental systems for the above two machining technologies were established. The simulation results were verified against experimental data and a reasonable correlation was found. The experimental results show the well machining performances and are beneficial to the industry application.