Effect of drill surface texturing on back burr height with solid lubricating sheet in titanium alloy drilling

Abstract

In this paper, we examined the effect of drill surface texturing with solid lubricating sheets on exit burr in drilling process of work pieces made of Ti-6Al-4V. As a result, drill with rough textured rake face shows high burr of Ti-6Al-4V in exit. On the other hand, drill with rough textured flank shows low burr height only if drilling with solid lubricating sheet. Moreover, the specific texturing by wire electric discharge machining causes decrease of burr height.