Definition of Transition Time in Machining Titanium Metal Matrix Composites (Ti-MMCs)

Titanium metal matrix composites (Ti-MMCs) have broad applications in the biomedical and aerospaceindustries. Although reinforcing elements in MMCs matrix improves the physical, mechanical, and thermal properties;however, rapid tool wear and deteriorated surface finish are the common observations in machining MMCs. Inaddition, the interaction between the tool and abrasive reinforcing particles induces complex deformation in the MMCstructure. Initial wear, steady wear, and rapid wear are three wear zones. In this regard, a comprehensiveunderstanding of the estimated total time spent in each state called sojourn time, and the transition times between eachzone are helpful to achieve a better tool life. This work will study the transition time in machining Ti-MMC underdifferent cutting conditions and cutting tools.