Journal ArticleDOI
Formation of the periodic material flow behaviour in friction stir welding
Hao Su,Tao Wang,Chuansong Wu +2 more
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In this paper, a two-dimensional computational fluid dynamics model is established to verify the correlation between periodic material flow and tool eccentricity during friction stir welding (FSW) process.Abstract:
A two-dimensional computational fluid dynamics model is established to verify the correlation between periodic material flow and tool eccentricity during friction stir welding (FSW) process. In the...read more
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Elucidation of intermetallic compounds and mechanical properties of dissimilar friction stir lap welded 5052 Al alloy and DP590 steel
Peihao Geng,Masashi Morimura,Hong Ma,Yunwu Ma,Ninshu Ma,Hui-hua Liu,Yasuhiro Aoki,Hidetoshi Fujii,Guoliang Qin +8 more
TL;DR: In this article , a friction stir lap welding (FSLW) was employed to join the dissimilar 5052 Al alloy and DP590 steel, and the fracture mode of the FSLW-formed 5052/DP590 joint was converted from the semi-brittle fracture into the fullbrittle fractures.
Journal ArticleDOI
Effect of tool eccentricity on the periodic material flow in friction stir welding process
Hao Su,Ji Chen,Chuansong Wu +2 more
TL;DR: Wang et al. as discussed by the authors investigated the effect of tool eccentricity during FSW process by numerical simulation based on computational fluid dynamics (CFD) to investigate the formation mechanism of the periodic feature.
Journal ArticleDOI
Material flow and viscous slips during stationary shoulder friction stir welding of Ti6Al4V
TL;DR: In this paper , the first derivative of the dividing line at the boundary of SZ was extracted to investigate material flow, and the material experienced different viscous slips when rotating around the pin, which disengaged pin at larger slip and adhered to pin at a smaller slip.
Journal ArticleDOI
Material flow and microstructure evolution on the flow path of friction stir lap welded aluminium alloy
TL;DR: In this paper , the authors investigated vertical material flow and microstructure evolution during friction stir lap welding of 6061-T6 aluminium alloys from a new perspective: various angles of keyhole obtained by emergency stop technique.
Journal ArticleDOI
Deciphering the interdependent impact of process parameters in friction stir welding - Part I: an overview of the challenges and way forward
TL;DR: In this article , the authors analyse the linkages in selecting apt process parameters vis-à-vis the FSW tool and workpieces' properties, highlighting linkages within the process parameters, workpiece properties, and the ensued joint properties.
References
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Book
Friction Stir Welding and Processing
Rajiv S. Mishra,Zongyi Ma +1 more
TL;DR: Friction stir welding (FSW) is a relatively new solid-state joining process that is used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding as discussed by the authors.
Journal ArticleDOI
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
Review: friction stir welding tools
TL;DR: Friction stir welding (FSW) is a widely used solid state joining process for soft materials such as aluminium alloys because it avoids many of the common problems of fusion welding as mentioned in this paper.
Journal ArticleDOI
On the formation of onion rings in friction stir welds
TL;DR: In this paper, the formation of onion rings is found to be a geometric effect due to the fact that cylindrical sheets of material are extruded during each rotation of the tool and the cutting through the section of the material produces an apparent "Onion Rings".
Journal ArticleDOI
Development of grain structure during friction stir welding
TL;DR: In this paper, a stop-action friction stir weld has been prepared in Al-Li 2195 to “freeze in” the dynamic deformation field surrounding the FSW tool.