title: Machinability of cast commercial titanium alloys.
abstract: This study investigated the machinability of cast orthopedic titanium (metastable beta) alloys for possible application to dentistry and compared the results with those of cast CP Ti, Ti-6Al-4V, and Ti-6Al-7Nb, which are currently used in dentistry. Machinability was determined as the amount of metal removed with the use of an electric handpiece and a SiC abrasive wheel turning at four different rotational wheel speeds. The ratios of the amount of metal removed and the wheel volume loss (machining ratio) were also evaluated. Based on these two criteria, the two alpha + beta alloys tested generally exhibited better results for most of the wheel speeds compared to all the other metals tested. The machinability of the three beta alloys employed was similar or worse, depending on the speed of the wheel, compared to CP Ti.
authors.affiliation: Department of Biomaterials Science, Baylor College of Dentistry, Texas A&M University System Health Science Center, 3302 Gaston Avenue, Dallas, Texas 75246, USA. iwtanabe@tambcd.edu
authors.forename: I
authors.initials: I
authors.lastname: Watanabe
authors.forename: S
authors.initials: S
authors.lastname: Kiyosue
authors.forename: C
authors.initials: C
authors.lastname: Ohkubo
authors.forename: T
authors.initials: T
authors.lastname: Aoki
authors.forename: T
authors.initials: T
authors.lastname: Okabe
mesh_terms: D000497:Alloys; D003735:Dental Casting Technique; D015921:Dental Implants; D003764:Dental Materials; D006244:Hardness; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D013674:Technology, Dental; D014025:Titanium
chemical_list: D000497:Alloys; D015921:Dental Implants; D003764:Dental Materials; C070282:Ti-6Al-7Nb alloy; C031462:titanium alloy (TiAl6V4); D014025:Titanium