Wear mechanisms analysis for turning Ti-6Al-4V—towards the development of suitable tool coatings

Abstract

Titanium alloys are materials of choice for a wide range of applications. Their high strength and low density make them suitable for aerospace applications. Titanium-based alloys also exhibit excellent corrosion resistance and are bio-compatible, making them suitable for prosthetic applications like orthopedic transplants. The reactivity as well as heat resistance of titanium-based alloys, however, renders them difficult to machine. Based on previous research involving the development of a wear map for Ti-6Al-4V alloy, this research aims to identify the wear mechanisms associated with tool deterioration across different regions of the wear map. The characterization of wear mechanisms with respect to machining conditions and tool wear rate would ultimately help in the development of suitable tool coatings for machining titanium-based alloys.