title: Machinability of an experimental Ti-Ag alloy in terms of tool life in a dental CAD/CAM system.
abstract: Titanium is difficult to machine because of its intrinsic properties. In a previous study, the machinability of titanium was improved by alloying with silver. This study aimed to evaluate the durability of tungsten carbide burs after the fabrication of frameworks using a Ti-20%Ag alloy and titanium with a computer-aided design and computer-aided manufacturing system. There was a significant difference in attrition area ratio between the two metals. Compared with titanium, the ratio of the area of attrition of machining burs was significantly lower for the experimental Ti-20%Ag alloy. The difference in the area of attrition for titanium and Ti-20%Ag became remarkable with increasing number of machining operations. The results show that the same burs can be used for a longer time with Ti-20%Ag than with pure titanium. Therefore, in terms of tool life, the machinability of the Ti-20%Ag alloy is superior to that of titanium.
authors.affiliation: School for Dental Laboratory Technicians, Tohoku University.
authors.forename: Ryoichi
authors.initials: R
authors.lastname: Inagaki
authors.forename: Masafumi
authors.initials: M
authors.lastname: Kikuchi
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Takahashi
authors.forename: Yukyo
authors.initials: Y
authors.lastname: Takada
authors.forename: Keiichi
authors.initials: K
authors.lastname: Sasaki
mesh_terms: D000497:Alloys / Q000737:chemistry*; D017076:Computer-Aided Design; D015921:Dental Implants; D017267:Dental Prosthesis Design / Q000379:methods*; D006801:Humans; D008422:Materials Testing; D012834:Silver / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
chemical_list: D000497:Alloys; D015921:Dental Implants; D012834:Silver; D014025:Titanium