Laser micromachining of metals

摘要

Abstract: With the laser process of machining a controlled extraction of material at a superficial level is made. We are investigating this process on metal parts of stainless steel 521. For this purpose a Nd:YAG laser is pulsed way with Q- switch, and the fundamental emission wavelength, 1.06 $mu@m, has been used. With high enough moving rates, we can neglect losses by thermal conductivity and convection in the environment. Within this type of experiments two simultaneous physical mechanism are observed that take place: melting and evaporation. The results of this work permit to know the method of searching the optimum parameters for 2D and 3D micromachining.!5