Invention Grant
- Patent Title: Friction stir welding machine and friction stir welding tool
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Application No.: US12923663Application Date: 2010-10-01
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Publication No.: US08025200B2Publication Date: 2011-09-27
- Inventor: Ryoji Ohashi , Mitsuo Fujimoto , Shinji Koga , Atsushi Kato
- Applicant: Ryoji Ohashi , Mitsuo Fujimoto , Shinji Koga , Atsushi Kato
- Applicant Address: JP Kobe
- Assignee: Kawasaki Jukogyo Kabushiki Kaisha
- Current Assignee: Kawasaki Jukogyo Kabushiki Kaisha
- Current Assignee Address: JP Kobe
- Agency: Oliff & Berridge, PLC
- Priority: JP2006-207214 20060728
- Main IPC: B23K20/12
- IPC: B23K20/12

Abstract:
A friction stir welding machine is provided that is adapted to perform solid phase welding on a welding portion of materials to be welded, by pressing a welding tool against the welding portion of the materials to be welded while rotating the welding tool, and forcing the welding tool to be advanced into a softened portion which is softened by a frictional heat while stirring the softened portion, wherein a coating made of aluminum nitride is formed on at least a region of the welding tool to be in contact with the materials to be welded.
Public/Granted literature
- US20110084116A1 Friction stir welding machine and friction stir welding tool Public/Granted day:2011-04-14
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