IMPROVEMENT OF TECHNOLOGICAL PARAMETERS AT SURFACE FINISHING THROUGH LASER BEAM MACHINING

摘要

The paper deals with improvement of technological parameters in order to obtain a superior quality of surface through laser beam machining (LBM) finishing. The process is based on superficial layer melting, i.e. micropeaks belonging to surface profile, which fill the microvalleys, contributing to roughness decreasing. Some experimental data concerning machining of different materials, illustrating the technological solutions about the improvement of working parameters are also presented. On this basis, the roughness could be improvement with up to 70% at a single passage of laser spot on machined surface.