Experimental study on fiber laser beam machining

Abstract

Laser Beam Cutting (LBC) is one of the most widely used manufacturing techniques for generation of accurate and complex geometrical shapes on ferrous metal, non ferrous metal, stones, plastic and ceramics components with high dimensional accuracy. Fiber lasers are solid state laser technologies that offer a combination of high beam quality and a wavelength that is easily absorbed by metal surfaces. This work aims to evaluate the optimum laser cutting parameters for 0.5 mm thickness of mild steel sheets by using Fiber laser beam machine of 100 W power and oxygen as assist gas. Focus of work is mainly on output response parameters like Material Removal Rate (MRR), Kerf Width (KW) and Kerf Deviation (KD). Results are analysed using Analysis of Variance (ANOVA) technique. The effect of different input process parameters like feed rate, laser power, frequency and gas pressure is studied on the output responses.