The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2014
Filed:
Dec. 14, 2011
Hiroka Miyazaki, Itami, JP;
Hideki Moriguchi, Itami, JP;
Yoshiharu Utsumi, Itami, JP;
Hidetoshi Fujii, Suita, JP;
Yoshiaki Morisada, Osaka, JP;
Hiroka Miyazaki, Itami, JP;
Hideki Moriguchi, Itami, JP;
Yoshiharu Utsumi, Itami, JP;
Hidetoshi Fujii, Suita, JP;
Yoshiaki Morisada, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Osaka University, Osaka, JP;
Osaka Municipal Technical Research Institute, Osaka, JP;
Abstract
There is provided a tool for friction stir welding having excellent wear resistance and chipping resistance. The tool for friction stir welding according to the present invention is a tool for friction stir welding used in friction stir welding processing, wherein the tool for friction stir welding includes a base material, the base material includes a first hard phase and a binder phase, and has a thermal conductivity of 45 W/m·K or less, the first hard phase is formed by WC particles, and the binder phase is formed by an iron group metal and is included in the base material at a volume ratio of 8% by volume or more and 28% by volume or less.