Parametric analysis of pulsed Nd：YAG laser texturing process

According to the investigation and analysis of pulsed laser parameters,we put forward a new principle of laser texturing of a new roll surface roughness profile (slight protuberance similitude of spherical cap) and successfully achieve the optimization predesign 3D surface roughness profile and size. In the experiment,based on the new principle of laser texturing,the laser parameters,such as pulse waveform,pulse energy,pulse duration,defocusing,are primely selected and matching. Consequently,the surface roughness profile and size have been successfully obtained. Furthermore,the influence rules between pulsed laser parameters and main profile parameters of roll have been analyzed and investigated. The results show the magnitude and space distribution of single pulse energy are the key factors of producing the new surface roughness profile and size.