Refill Friction Stir Spot Joining for aerospace aluminum alloys
Boldsaikhan, Enkhsaikhan Fukada, Shintaro Fujimoto, Mitsuo Kamimuki, Kenichi Okada, Hideki Duncan, Brent Bui, Phuonghanh Yeshiambel, Michael Brown, Brian M. Handyside, Alan Bruce
Boldsaikhan, Enkhsaikhan
Fukada, Shintaro
Fujimoto, Mitsuo
Kamimuki, Kenichi
Okada, Hideki
Duncan, Brent
Bui, Phuonghanh
Yeshiambel, Michael
Brown, Brian M.
Handyside, Alan Bruce
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2017
Type
Conference paper
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Keywords
Refill friction stir spot joining,Aerospace aluminum alloy,Robotic spot welding
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Citation
Boldsaikhan E. et al. (2017) Refill Friction Stir Spot Joining for Aerospace Aluminum Alloys. In: Hovanski Y., Mishra R., Sato Y., Upadhyay P., Yan D. (eds) Friction Stir Welding and Processing IX. The Minerals, Metals & Materials Series. Springer, Cham
Abstract
Refill Friction Stir Spot Joining (RFSJ) developed by Kawasaki Heavy Industries (KHI) is a derivative technology of friction stir spot welding for joining aerospace aluminum alloys. The aerospace aluminum alloys were previously considered not weldable using conventional fusion welding methods. RFSJ does not consume any filler materials so that no additional weight is introduced to the assembly. As the solid-to-liquid phase transition is not involved in RFSJ in general, there is no lack of fusion or material deterioration caused by liquefaction and solidification. Unlike the conventional friction stir spot welding, RFSJ produces a spot joint with a perfectly flush surface finish without a key/exit hole. KHI has advanced the original friction stir spot welding concept and developed a robotic system that is capable of producing refill friction stir spot joints. The goal of this study is to demonstrate process parameter optimization of RFSJ for baseline aerospace aluminum alloys.
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Springer
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Friction Stir Welding and Processing IX;
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2367-1181