Tool shoulder and pin geometry's effect on friction stir welding: A study of literature

• Published in: Materials today : proceedings Vol. 39; pp. 1565 - 1569
• Main Authors: Sunnapu, Chandrasekhar, Kolli, Murahari
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-01-2021
• Subjects: Alluminum alloy 5083; Friction Stir Welding (FSW); Tool pin geometry; Tool pin profile; Tool shoulder surfaces; Alluminum alloy 5083; Tool pin profile; Tool pin geometry; Tool shoulder surfaces; Friction Stir Welding (FSW)
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2020.05.601

The Friction Stir Welding (FSW) is a solid-state joining method. FSW can be used for comprehensive joining of sensitive materials such as aluminum (Al), copper and magnesium etc. Fusion welding is hard to connect to the alloys and their composites. The geometry of tools and equipment are the main parameters of FSW. This method relies primarily on tool elements such as the diameter of the shoulders, the angle of the shoulder surface, the tool structure with its shape and dimensions and the potential for surfaces of the equipment. Some researchers have defined cross and rotational speeds as the key process parameters for perfect welding performance. Tool geometry is a critical parameter affecting the weld quality and joint properties. The paper examines the progression of different pin profiles and their effects on the weld joint microstructure.