Study the effect of CNC milling parameter on surface roughness of POM material

Abstract

Polyoxymethylene (POM) belongs to a group of high-performance thermoplastic polymers, which has high specific properties as compared to conventional metallic materials. Due to its own properties and potential applications in various fields of structural components, it is necessary to investigate the machining of POM. This paper present the relationships between the cutting conditions (depth of cut, fee d rate and cutting speed). The researcher focuses on interaction effects between the controllable factors and responses during machining of POM material under dry machining condition. An experiment and analysis was conducted by using design of experiment method (DOE). The optimum parameter was determined by measuring the surface roughness (Ra ) of each work piece and analyse the result via an interaction of main effect by ANOVA. The researcher were successfully record the optimum parameters which is 4000 RPM of cutting speed, 0.25 mm/tooth for feed rate, 4 mm of dept h of cut. By using this parameter, the smallest value of surface roughness is measured -0.0286µm.