Journal ArticleDOI
Projection friction stir spot welding: a pathway to produce strong keyhole-free welds
TLDR
In this paper, projection friction stir spot welding is used to produce keyhole-free friction stir welds based on a pinless tool method involving using a specially designed pin-less tool.Abstract:
This paper introduces a novel facile method, called projection friction stir spot welding, to produce a keyhole-free friction stir welds based on a pinless tool method involving using a specially dread more
Citations
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Journal ArticleDOI
The impact of macro/microstructure features on the mechanical properties of refill friction stir spot–welded joints of AA2219 alloy with a large thickness ratio
Yangfan Zou,Wenya Li,Qiang Chu,Zhikang Shen,Feifan Wang,Huawei Tang,Achilles Vairis,Liyuan Liu +7 more
TL;DR: In this paper, AA2219 aluminium alloy plates of large thickness ratios were successfully produced by refill friction stir spot welding (RFSSW) method, and the maximum tensile-shear strength reached 7.2 kN, corresponding to the rotation speed of 2000 rpm, welding time of 3.6 s and plunge depth of 2.2 mm.
Journal ArticleDOI
Influence of Tool Geometry and Process Parameters on the Properties of Friction Stir Spot Welded Multiple (AA 5754 H111) Aluminium Sheets.
Danka Labus Zlatanovic,Danka Labus Zlatanovic,Sebastian Balos,Jean Pierre Bergmann,Stefan Rasche,Milan Pecanac,Saurav Goel,Saurav Goel,Saurav Goel +8 more
TL;DR: In this article, two convex tools with different edge radii were used to weld four ultrathin sheets of AA5754-H111 alloy each with 0.3 mm thickness.
Journal ArticleDOI
Comparative Study of Classification Algorithms for Quality Assessment of Resistance Spot Welding Joints From Pre- and Post-Welding Inputs
TL;DR: In this paper , the use of tree ensemble models as classifiers dominated the classification results in terms of accuracy, F-measure and area under the receiver operating characteristic curve metrics.
Journal ArticleDOI
Comparative study of classification algorithms for quality assessment of resistance spot welding joints from preand post-welding inputs
TL;DR: In this paper , the use of tree ensemble models as classifiers dominated the classification results in terms of accuracy, F-measure and area under the receiver operating characteristic curve metrics.
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
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
Critical review of automotive steels spot welding: process, structure and properties
TL;DR: In this article, the fundamental understanding of structure-properties relationship in automotive steels resistance spot welds is discussed. And a brief review of friction stir spot welding, as an alternative to RSW, is also included.
BookDOI
Resistance welding : fundamentals and applications
Hongyan Zhang,Jacek Senkara +1 more
TL;DR: WELDING METALLURGY Solidification in Resistance Spot Welding Phase Transformations in RSW Cracking References ELECTROTHERMAL Processes of WELDING Introduction Electrical Characteristics of Resistance Welding Thermal Characteristics and Electrode Life Lobe Diagrams References WELD DISCONTINUITIES Classification of Discontinuities as mentioned in this paper.