PMMA surface structure within CO2 laser micro-machining

Abstract

This article presents some possibilities of laser micro-machining. Results of the laser micro-machining-surface quality of product and its utility in specific application-depend on the laser parameters and the polymer material type. From the obtained scientific knowledge it follows, that the character of surface machined by laser depends on thermal conductivity of polymer. The action of laser beam is best shown on specimens from PMMA, therefore tests were carried out with this material. Optimal parameters of CO2 laser for used material are presented in given study. Visual evaluation of action laser ray on surface of PMMA was made also. © (2014) Trans Tech Publications, Switzerland.