Journal ArticleDOI
Review: friction stir welding tools
TLDR
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.Abstract:
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. Commercial feasibility of the FSW process for harder alloys such as steels and titanium alloys awaits the development of cost effective and durable tools which lead to structurally sound welds consistently. Material selection and design profoundly affect the performance of tools, weld quality and cost. Here we review and critically examine several important aspects of FSW tools such as tool material selection, geometry and load bearing ability, mechanisms of tool degradation and process economics.read more
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Journal ArticleDOI
Investigation of Nondestructive Testing Methods for Friction Stir Welding
Hossein Taheri,Margaret Kilpatrick,Matthew Norvalls,Warren J. Harper,Lucas W. Koester,Timothy A. Bigelow,Leonard J. Bond +6 more
TL;DR: In this article, the authors present background to the process of friction stir welding and identify major process parameters that affect the weld properties, the origin, and types of defects that can occur, and potential non-destructive methods for ex-situ detection and in-sit identification of these potential defects, which can then allow for corrective action to be taken.
Journal ArticleDOI
Study on distribution of long-period stacking ordered phase in Mg–Gd–Y–Zn–Zr alloy using friction stir processing
TL;DR: In this paper, the influence of heat and deformation conditions on the distribution of long-period stacking ordered (LPSO) phase was investigated. And detailed influence of these factors on LPSO phase was discussed.
Journal ArticleDOI
Microstructural Evolution and Fracture Behavior of Friction-Stir-Welded Al-Cu Laminated Composites
TL;DR: In this paper, the microstructural evolution during friction stir butt welding of Al-Cu-laminated composites and its effect on the fracture behavior of the joint was analyzed using optical microscopy and scanning electron microscopy (SEM) images, energy-dispersive spectroscopy EDS and XRD analyses, hardness measurements, and tensile tests.
Journal ArticleDOI
Effect of Tool Offset and Rotational Speed in Dissimilar Friction Stir Welding of AISI 304 Stainless Steel and Mild Steel
TL;DR: In this paper, dissimilar friction stir welding was carried out between stainless steel and mild steel plates of 4mm thickness using a tungsten carbide tool, and the influence of tool rotational speeds (600, 875, and tool offsets (0.6, 1.2) on mechanical properties, such as hardness, tensile strength, and impact toughness of welded joints was investigated.
Journal ArticleDOI
Mechanical and microstructural properties evolutions of various alloys welded through cooling assisted friction-stir welding: A review
TL;DR: A review of the current status of on-going research in friction stir welding can be found in this article, where the particular attention has been paid to process parameters, phase transformation, texture evolution, recrystallization mechanism, microstructural behaviour, and the influence of these factors on the joint tensile strength, hardness, fatigue properties, residual stresses as well as corrosion behaviour.
References
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Journal ArticleDOI
I and i
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
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.
Book
The CRC Materials Science And Engineering Handbook
TL;DR: In this paper, the authors present a comparison of various types of metals, chemical properties, and their application in low-dimensional carons and two-dimensional nanomaterials.