Modelling and prediction of the laser cutting of PMMA

Abstract

The paper deals with possibilities of using the laser in technologies, below it describes problems of laser cutting accuracy for the specific technological conditions. Laser, one of the greatest inventions in modern physics, is a quantum amplifier of electro magnetic wave motion based on mutual interaction of mass and radiation. The commercial CO2 laser Mercury L-30 was applied for micro-cutting of the PMMA. This laser machine can be used for machining, cutting and engraving of variety of materials (for example plastics, rubber, leather, coated metal, stone, wood, and ceramics). This type of laser machine is preferably intended for commercial usage. Input parameters were changed step by step. The output parameters were evaluated as the entering data for the optimization by artificial neural networks. In order to interpret complicated dependencies between technological characteristic of laser cutting and output parameters was used NeuroSolution 3.0 for Excel 1.02.