1. “Study on Machinability of Pure Titanium”;TAKEYAMA;J. of JSPE,1962
2. “Zerspanbarkeit der Titanwerkstoffe”;Kreis;Ind.-Anz,1974
3. METAL CUTTING;TRENT,1977
4. Machining Data Handbook, 3 rd Edition, vol 1, Machinability Data Center, 1980
5. “Thermal Damage of Diamond”;TANAKA;J. of JSPE,1970