Hole Quality Analysis in Helical Milling of CFRP

Abstract

Carbon fiber reinforced plastics (CFRP) are highly promising materials for the applications in the aerospace industries, but they are typical difficult-to-cut material. In order to improve the quality, helical milling technology was developed. In this study, helical milling experiments were conducted in the machining center about CFRP materials. The hole quality including the surface roughness, the diameter error and the roundness error are analyzed. The result shows that the hole quality was improved corresponding to drilling technology.