Investigation on the Surface Roughness of Glass–ceramic by In-Situ Laser-Assisted Machining

Glass–ceramic is a widely used and difficult to machine material with high hardness and brittleness. For this reason, in-situ laser-assisted machining (LAM) of glass–ceramic was carried out with surface roughness as the characteristic value to study the machining quality of glass–ceramic. Orthogonal experiments on in-situ LAM were conducted using the Taguchi method (TM). The range of surface roughness reduction obtained by comparing in-situ LAM with conventional machining is 44.44–61.27