Parametric Investigation of Process Parameters for Laser Cutting Process

摘要

Laser cutting is energy based unconventional process used to cut complicated shapes of various types of materials. The objective of this paper is to investigate the effects of parameters associated with CO2 laser cutting of Aluminium plate of 6 mm thickness. The experiment was designed and carried out on the basis of standard L9 Taguchi’s orthogonal array in which the four laser cutting parameters viz. laser power, cutting speed, assist gas pressure, and stand-off distance were arranged at three levels. The width of laser cut or kerf, quality of the cut edges are affected by laser power, cutting speed, assist gas pressure, and stand-off distance between nozzle and the work-piece material. The relations between the input parameters and the response were investigated. The result showed that the parameters like power, cutting speed and stand-off distance have major impact over surface roughness and kerf width.