From: Tool Temperature in Titanium Drilling Date of download: 12/31/2017 Copyright © ASME. All rights reserved. From: Tool Temperature in Titanium Drilling J. Manuf. Sci. Eng. 2007;129(4):740-749. doi:10.1115/1.2738120 Figure Legend: Ti chip at 73.2m∕min peripheral cutting speed (2350rpm rotational speed): (a) the spiral cone followed by the folded long ribbon chip morphology, (b) close-up view of the spiral cone chip at the start of drilling, and (c) chip cross section and chip thickness variation of ECT (C: chip close to the center of drill)