Friction Properties in Titanium Macbining

We have some troubles due to characteristics of titanium when it is machined. Only little troubles however is shown at outside lathe turning of titanium from our study. But, surface of titanium rubbed against metals is very bad, and also wear of metals are remarkable. This bad condition due to friction is happened between tool and titanium at boring of it. Friction properties between titanium and tool materials by abrasion tester (Okosi type) and lathe, and tool material with largest resistance for wear are found out. The results of experiments are mentioned in this paper.