Abstract
We investigated the amount of wear to cemented carbide tools by cutting a difficult-to-cut titanium alloy material (Ti-6Al-4V) using minimum quantity lubrication (MQL), and obtained results comparable to those using the conventional wet cutting processes. We also experimentally investigated tool coatings suitable for the MQL cutting of titanium alloys and found that the newly developed TiBON coating increases tool life, probably because it has a low coefficient of friction at high temperatures, and therefore provides improved lubricating properties that result in reduced adhesive wear.
