Marjorie C. Ballun

TL;DR: In this article, the basic principles of friction stir welding (FSW) are discussed, including terminology, material flow, joint configurations, tool design, materials, and defects, with an emphasis on recent advances in aerospace, automotive, and ship building.

TL;DR: In this paper, weaved FSW and pulsed FSW were evaluated to determine the potential impact of these variant technologies on weld strength, and a more traditional flat shoulder tool geometry operated with a tilt angle was compared to a tapered shoulder tool configuration operated at a 0° tilt angle, which offers the possibility of simplifying robotic welding operations.

TL;DR: In this article, a pinless friction stir spot welding tool with a scrolled convex shoulder is used to create spot welds on aluminum alloy plates, and the effects of rotation rate, the dwell time, the plunge depth and the plunge rate have on the spot welding process are investigated.

TL;DR: An attempt is made to exploit sealant presence to reduce necessary robotic path planning procedures and demonstrate a new level of interaction between sealants and robotic control.