Comprehensive study of chip morphology in turning of Ti-6Al-4V

In machining of Ti-6Al-4V alloy, the formation of saw tooth chips takes place at relatively low cutting speeds in comparison to other materials such as hardened steels. Study of chip morphology is important to understand the cutting force variation, surface integrity and chip breakability of the alloy. In this work, an attempt has been made to study the effect of cutting speed, feed rate and depth of cut on saw tooth geometry in terms of peak height, valley height, tooth height, segmentation degree, tooth pitch, localized shear angle, bulge angle and chip segmentation frequency, to get better insight about the machinability characteristics of Ti-6Al-4V alloy.