Refill Friction Stir Spot Welding of Similar and Dissimilar Alloys:A Review

• 来源期刊: 金属学报（英文版）
• 年，卷（期）: 2020,（1）
• 页码范围: 30-42
• 页数: 13页
• 语种: 英文

摘要

Refill friction stir spot welding,also known as friction spot welding (FSpW),is a solid-state welding process suitable for spot joining of lightweight materials.Through the efforts of improving joint quality for similar and dissimilar materials,for example,aluminum and magnesium,this joining technology is well developed.The joining mechanism and process characteristics of FSpW have been widely studied.However,the application of FSpW in industry has not been entirely successful.In this review article,the research of similar and dissimilar material joints,such as,A1/Cu,A1/Ti,Al/Mg and A1/Steel,is summarized.The microstructural features and mechanical properties of the joints,welding tool and the application development are discussed in detail.