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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.

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Journal ArticleDOI

W-25%Re-HfC composite materials for Pin tool material applications: Synthesis and consolidation

TL;DR: In this paper, the effect of processing parameters and reinforcement content on the microstructure, densification, and properties of the developed materials was investigated and the uniform distribution of HfC particles, obtained by mechanical alloying, was maintained in the consolidated samples.
Journal ArticleDOI

Improving the friction stir welding tool life for joining the metal matrix composites

TL;DR: In this article, the authors focused on the improvement of FSW tool life in joining the aluminum matrix composites, through surface enhancement, and they used H13 tool steel and tungsten carbide, as a base material, and graphene, carbon nanotubes, and diamond-like carbon were chosen for coating the tool.
Journal ArticleDOI

Tool material effect on the friction stir butt welding of AA2124-T4 Alloy Matrix MMC

TL;DR: In this article, the effect of material properties tool on friction stir butt welding of AA2124-T4 alloy matrix MMC was studied and the results showed that the good welded joints could be obtained when a tool is coated with AlTiN.
Journal ArticleDOI

Multi-Criteria Optimization in Friction Stir Welding Using a Thermal Model with Prescribed Material Flow

TL;DR: In this article, a three-dimensional steady state thermal model of friction stir welding of AA2024-T3 plates has been simulated and the effect of the tool rotation on the temperature distribution has been also taken into account.
Journal ArticleDOI

Exploring the functional and corrosion behavior of friction stir welded NiTi shape memory alloy

TL;DR: In this article, the tensile cyclic behavior for different strain percentages has been investigated using electrical actuation and the thermomechanical behavior of the weld was studied using electric actuation.
References
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Book ChapterDOI

I and J

Journal ArticleDOI

I and i

Kevin Barraclough
- 08 Dec 2001 - 
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

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.
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