Control method for novel process of laser micro-texturing

During the laser surface texturing, the high intensity of the laser beam pulse on the metal material surface results in the negative heat effect. A new processing approach of single pulse one time, repeating at intervals is presented in this paper. The movement control card and self-developed Qswitch card were programmed for coordinated control between laser system and movement control system. The new processing process was realized by the coordinated control and the technique of acoustic-optic Q-switched and servo control. The system was controlled by industrial computer. With the new approach, the micro-dimple and groove can be easily fabricated and the negative thermal effect can be reduced. The required micro-structures can be produced on the surface of friction units.