Effect of μEDM Milling Process Parameters on Surface Roughness During Machining Ti-6Al-4V

摘要

Micro-electric discharge milling (μEDM milling) is one of the important nontraditional micro-manufacturing processes which has the capabilities to make three-dimensional micro-components on difficult to machine materials like Ti-6Al-4V. In this study, the effect of various μEDM milling process variables on surface finish (Ra value) has been studied by adopting the Box-Behnken design of response surface methodology. Capacitance, voltage, electrode rotational speed and feed rate as well as their level of significance on surface roughness has been studied with analysis of variance. Results showed that capacitance is the important process variable which influences the responses.