Journal ArticleDOI
Advances in friction welding process: a review
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TLDR
In this article, the fundamental understanding of the process of friction welding is discussed, including the mechanism of the friction welding, types of relative motions, influence of parameters, heat generation in the process, understanding the deformation, microstructure and properties of similar and dissimilar welded materials.Abstract:
Friction welding is now well established as one of the most economical and highly productive methods in joining similar and dissimilar metals. It is widely used in automotive and aerospace industrial applications. Friction welding is often the only viable alternative in this field to overcome the difficulties encountered in joining the materials with widely varying physical characteristics. This process employs a machine that is designed to convert mechanical energy into heat at the joint to weld using relative movement between workpieces, without the use of electrical energy or heat from other sources. This review deals with the fundamental understanding of the process. The focus is on the mechanism of friction welding, types of relative motions of the process, influence of parameters, heat generation in the process, understanding the deformation, microstructure and the properties of similar and dissimilar welded materials.read more
Citations
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Journal ArticleDOI
Joining of dissimilar materials
TL;DR: Current and emerging joining technologies are reviewed according to the mechanisms of joint formation, i.e.; mechanical, chemical, thermal, or hybrid processes.
Journal ArticleDOI
Friction stir based welding and processing technologies - processes, parameters, microstructures and applications: A review
G.K. Padhy,Chuansong Wu,S. Gao +2 more
TL;DR: Friction stir welding (FSW) has achieved remarkable success in the joining and processing of aluminium alloys and other softer structural alloys, however, it has not been entirely successful in the manufacturing of different desired materials essential to meet the sophisticated green globe requirements as discussed by the authors.
Journal ArticleDOI
Linear and rotary friction welding review
TL;DR: In this paper, the current state of understanding and development of RFW and LFW is presented, focusing on the process parameters, joint microstructure, residual stresses, mechanical properties and their relationships.
Journal ArticleDOI
Improvement of weld temperature distribution and mechanical properties of 7050 aluminum alloy butt joints by submerged friction stir welding
TL;DR: In this article, the fracture surfaces of the tensile specimens were observed, and the microstructures at the fracture region were investigated, while the weld thermal cycles and transverse distributions of the microhardness of the weld joints were measured, and their tensile properties were tested.
References
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Journal ArticleDOI
Recent advances in friction-stir welding : Process, weldment structure and properties
TL;DR: In this article, the authors deal with the fundamental understanding of the process and its metallurgical consequences, focusing on heat generation, heat transfer and plastic flow during welding, elements of tool design, understanding defect formation and the structure and properties of the welded materials.
Journal ArticleDOI
Microstructural investigation of friction stir welded 7050-T651 aluminium
TL;DR: In this paper, the grain structure, dislocation density and second phase particles in various regions including the dynamically recrystallized zone (DXZ), thermo-mechanically affected zone (TMAZ), and heat-affected zone (HAZ) of a friction stir weld aluminum alloy 7050-T651 were investigated and compared with the unaffected base metal.
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Properties of friction-stir-welded 7075 T651 aluminum
TL;DR: Friction stir welding (FSW) was used to weld 7075 T651 aluminum, an alloy considered essentially unweldable by fusion processes as discussed by the authors, which exposed the alloy to a short time, high-temperature spike, while introducing extensive localized deformation.
Journal ArticleDOI
An analytical model for the heat generation in friction stir welding
TL;DR: In this article, the authors established an analytical model for heat generation by friction stir welding (FSW), based on different assumptions of the contact condition between the rotating tool surface and the weld piece.
Journal ArticleDOI
Three-dimensional heat and material flow during friction stir welding of mild steel
TL;DR: In this article, three-dimensional viscoplastic flow and heat transfer during friction stir welding of mild steel was investigated both experimentally and theoretically, and the equations of conservation of mass, momentum and energy were solved in three dimensions using spatially variable thermo-physical properties and a methodology adapted from well established previous work in fusion welding.