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friction stir welding

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Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006500
EISBN: 978-1-62708-207-5
... Abstract This article focuses on friction stir welding (FSW), where frictional heating and displacement of the plastic material occurs by a rapidly rotating tool traversing the weld joint. Much of the research activity early on pertained to issues related to understanding the process, such as...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006572
EISBN: 978-1-62708-290-7
... and development continues in DAM processes, they are becoming increasingly attractive, especially for the AM of metals. This article discusses some of the more widely used DAM processes, namely ultrasonic additive manufacturing, cold spray process, and friction stir welding, focusing on their...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006389
EISBN: 978-1-62708-192-4
... coatings, which is often the weakest location. This work was supported by the U.S. Department of Energy, Energy Efficiency and Renewable Energy, under contract DE-AC02-06CH11357 by UChicago Argonne, LLC. Friction stir processing is an offshoot of the friction stir welding (FSW...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005576
EISBN: 978-1-62708-174-0
... Abstract This article discusses the development of a welding procedure for friction stir welding (FSW), including the process of defining a preliminary procedure, the optimization of parameters, the development of supporting data, and other key features to ensure a successful procedure. The...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005629
EISBN: 978-1-62708-174-0
... Abstract A key differentiator between friction stir welding (FSW) and other friction welding processes is the presence of a nonconsumable tool in FSW, often referred to as a pin tool to differentiate it from other tooling associated with the process. This article discusses materials for...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005637
EISBN: 978-1-62708-174-0
... Abstract Friction stir welding (FSW) involves plastic deformation at high strain rates and elevated temperatures with resultant microstructural changes leading to joining. This article provides a link between deformation and FSW process parameters and summarizes the results of experimental...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005526
EISBN: 978-1-62708-197-9
... Abstract This article discusses the fundamentals of friction stir welding (FSW) and presents governing equations and an analytical solution for heat transfer. It provides the solutions for structural distortion in FSW. The article describes various techniques that have been adopted to solve the...
Book Chapter

Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005646
EISBN: 978-1-62708-174-0
... Abstract This article is a compilation of definitions for terms related to welding fundamentals and all welding processes. The processes include arc and resistance welding, friction stir welding, laser beam welding, explosive welding, and ultrasonic welding. arc welding explosive welding...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005578
EISBN: 978-1-62708-174-0
... between the two components, including radial, orbital, angular reciprocating, linear reciprocating, or rotary. Two important variations of friction welding are friction surfacing and friction stir welding. These processes are sufficiently different from other traditional friction welding variants, that is...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005588
EISBN: 978-1-62708-174-0
... structure of the flow circulation regions and layers, which incorporated the surface-tension-driven flow (Marangoni effect) and the moving phase boundary. More recently, many investigators developed three-dimensional numerical models to study the viscoplastic flow and temperature field in friction stir...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005552
EISBN: 978-1-62708-174-0
... diffusion welding (e.g., deformation diffusion welding). Nonfusion welding processes also rely on energy sources other than mechanical pressure. For example, forms of friction welding rely on frictional energy (although there is significant plastic deformation in some forms, such as friction stir welding...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005574
EISBN: 978-1-62708-174-0
... Mash seam welding Friction processes Inertia welding Continuous-drive friction welding Linear friction welding Friction stir welding Arc processes Percussive welding Magnetically impelled arc butt welding These processes can be thought of as having two generally...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005636
EISBN: 978-1-62708-174-0
... Eq 2 , the first term on the right side is the pressure gradient. The second term represents the frictional dissipation in the mushy zone according to the Carman-Kozeny equation for flow through a porous media ( Ref 11 ), where f L is the liquid fraction, B is a very small computational constant...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005616
EISBN: 978-1-62708-174-0
..., cracks may also occur as a result of poor welds. A good example is an incomplete consolidation flaw in friction stir welding (FSW). This is a tunnel defect that forms at the intersection of the weld nugget, thermomechanically affected zone, and band of material running from the weld nugget toward the...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005561
EISBN: 978-1-62708-174-0
... Abstract This article provides an overview of integrated weld modeling and discusses the fundamentals of the underlying physics and methodologies involved in process modeling. It presents approaches for microstructure modeling that help to predict phase fractions as well as grain size in the...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006551
EISBN: 978-1-62708-210-5
... ( Ref 99 ). This technique, involving cold welding, fracturing, and rewelding of matrix/reinforcement particles, is usually referred to as mechanical alloying ( Ref 97 , 105 , 106 ). In recent years, friction stir processing, based on friction stir welding, was proposed as a possible method to produce...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006388
EISBN: 978-1-62708-192-4
... ( Ref 96 , 104 , 105 ). In recent years, friction stir processing, based on friction stir welding, was proposed as a possible method to produce surface-reinforced composites ( Ref 106 ). This technique makes it possible to distribute particles within the metal matrix, at the solid state, by...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005345
EISBN: 978-1-62708-187-0
... the total number of repairs that are effectively completed on these materials. There have recently been limited studies performed by various academic institutions and government agencies concerning the repair of aluminum and nickel-copper castings using friction stir welding (FSW) processes. Areas...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006301
EISBN: 978-1-62708-179-5
... ). Welding methods without melting of the base metal include brazing welding and some solid-state methods such as friction welding and pressure welding. Nonfusion welding methods are briefly discussed at the end of this article. The advantages and limitations of a given arc welding process can depend on...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1
... electron beam welds electroslag welds fatigue fitness-for-service assessment flash welds friction welding high-frequency induction welds inclusions joint design laser beam welds mechanical testing porosity upset butt welds weld discontinuity weldment failure weldment integrity WELDMENT...