title: Machinability evaluation of titanium alloys (Part 2)--Analyses of cutting force and spindle motor current.
abstract: To establish a method of determining the machinability of dental materials for CAD/CAM systems, the machinability of titanium, two titanium alloys (Ti-6Al-4V and Ti-6Al-7Nb), and free-cutting brass was evaluated through cutting force and spindle motor current. The metals were slotted using a milling machine and square end mills at four cutting conditions. Both the static and dynamic components of the cutting force represented well the machinability of the metals tested: the machinability of Ti-6Al-4V and Ti-6Al-7Nb was worse than that of titanium, while that of free-cutting brass was better. On the other hand, the results indicated that the spindle motor current was not sensitive enough to detect the material difference among the titanium and its alloys.
authors.affiliation: Division of Dental Biomaterials, Graduate School of Dentistry, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. kikuchi@mail.tains.tohoku.ac.jp
authors.forename: Masafumi
authors.initials: M
authors.lastname: Kikuchi
authors.forename: Osamu
authors.initials: O
authors.lastname: Okuno
mesh_terms: D000497:Alloys; D000704:Analysis of Variance; D017076:Computer-Aided Design; D003300:Copper; D003722:Dental Alloys; D003775:Dental Polishing; D017267:Dental Prosthesis Design; D004560:Electricity; D008669:Metallurgy; D013674:Technology, Dental; D014025:Titanium; D019415:Torque; D015032:Zinc
chemical_list: D000497:Alloys; D003722:Dental Alloys; C070282:Ti-6Al-7Nb alloy; C048399:brass; C031462:titanium alloy (TiAl6V4); D003300:Copper; D014025:Titanium; D015032:Zinc