Journal ArticleDOI
Gap tolerance allowance and robotic operational window for friction stir butt welding of AA6061
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TLDR
In this paper, the effect of gap, i.e., the spacing between two sheets at the butt joint interface, on the joint quality of AA6061 was evaluated in terms of the welding defects, microstructure, hardness and bend performance.About:
This article is published in Journal of Materials Processing Technology.The article was published on 2013-04-01. It has received 30 citations till now. The article focuses on the topics: Butt welding & Welding.read more
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Recent progress on control strategies for inherent issues in friction stir welding
TL;DR: In this paper, a review of the control strategies for back support, weld thinning, and keyhole defects in friction stir welding (FSW) is presented, which are basically divided into self-supported FSW, non-weld-thinning FSW and friction stir-based remanufacturing.
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Investigation of weld defects in friction-stir welding and fusion welding of aluminium alloys
TL;DR: In this article, the authors present an overview of the key factors related to the formation of defects in welding methods commonly used with aluminium alloys, such as friction-stir welding, laser beam welding and arc welding.
Journal ArticleDOI
Machines and control systems for friction stir welding: A review
TL;DR: In this article, a literature review on the machine and control systems applied in friction stir welding (FSW) with a special focus on the new trends, i.e., using robots and force control is presented.
Journal ArticleDOI
Feature Extraction of Welding Seam Image Based on Laser Vision
TL;DR: The least square method based on the slope analysis method is used to detect the features of the image to obtain the feature information of the weld groove and the operation time of this paper is improved to 22 ms, which can meet the requirement of real time.
Journal ArticleDOI
Fatigue lifetime and tearing resistance of AA2198 Al–Cu–Li alloy friction stir welds: Effect of defects
TL;DR: In this paper, the fatigue strength and failure mechanisms of defect-free (sound) and flaw bearing friction stir butt-welds of 3.1mm-thick AA2198-T8 Al-Li-Cu alloy have been investigated via S-N curves at R ǫ = 0.1 using cross weld specimens.
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
Microstructural aspects of the friction-stir welding of 6061-T6 aluminum
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Tensile properties and fracture locations of friction-stir-welded joints of 2017-T351 aluminum alloy
TL;DR: In this article, the relationship between welding parameters and tensile properties of the joints has been investigated and it was shown that the tensile property and fracture locations of the joint are significantly affected by the welding process parameters.
Journal ArticleDOI
Mechanical and thermal modelling of Friction Stir Welding
P. Heurtier,M.J. Jones,Christophe Desrayaud,Julian H. Driver,Frank Montheillet,Delphine Allehaux +5 more
TL;DR: In this article, a semi-analytical model for friction stir welding is presented, based on the velocity fields classically used in fluid mechanics and incorporating heat input from the tool shoulder and the plastic strain of the bulk material, which can be used to obtain the strains, strain rates, and estimations of the temperatures and micro-hardness in the various weld zones.