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laser stir welding

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Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006490
EISBN: 978-1-62708-207-5
... Abstract Although laser stir welding (LSW) is applied to various metallic systems, it is especially appropriate to laser beam welding (LBW) of aluminum, because liquid aluminum possesses significantly less surface tension and viscosity than most common metal alloys, which results in greater...
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Published: 30 November 2018
Fig. 2 Schematic of laser stir welding process showing mechanism employed to significantly reduce formation of pores and voids by translating a self-healing keyhole More
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Published: 30 November 2018
Fig. 10 Images of laser stir welding for producing spot welds on a stiffened aluminum structure. Courtesy of The Applied Research Laboratory, Pennsylvania State University and Federal Technology Group More
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Published: 30 November 2018
Fig. 6 Influence of processing parameters on weld attributes for laser stir welding (LSW) on 6.3 mm (0.25 in.) thick alloy 5083-O and comparison with traditional laser beam welding (LBW) More
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Published: 30 November 2018
Fig. 7 Level of porosity found within 5083-O butt welds produced using laser stir welding (LSW) under different parameters, along with traditional laser beam welding (LBW) for comparison More
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Published: 30 November 2018
Fig. 5 Results of tensile testing of 6013-T4 that had been welded and postweld aged for laser beam welds (LBW) and laser stir welds (LSW) More
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Published: 30 November 2018
Fig. 4 Cross sections of butt, lap, and fillet welds on 3 mm (0.25 in.) aluminum alloy produced using traditional laser beam welding (LBW) and laser stir welding (LSW) More
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Published: 30 November 2018
Fig. 9 Commercial scanning system for high-power beam manipulation for laser stir welding. Courtesy of Laser Mechanisms Corporation More
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Published: 30 November 2018
Fig. 8 Relative velocity ( V L ) of the laser beam with respect to the workpiece during laser stir welding with clockwise (CW) and counterclockwise (CCW) circular beam manipulation More
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Published: 30 November 2018
Fig. 3 Select images, in progression from 1 to 9, of vapor cavity and molten pool during laser stir welding with circular beam manipulation. Oval line with arrows in each image shows clockwise motion and direction of the beam, while the substrate is moving to the right relative to beam More
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...
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Published: 31 December 2017
Fig. 8 Illustration of hybrid friction stir processing with laser preheating. (a) Schematic. FSW, friction stir welding. (b) Actual. Source: Ref 17 More
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
... can be used for this type of hybrid FSP. Fig. 8 Illustration of hybrid friction stir processing with laser preheating. (a) Schematic. FSW, friction stir welding. (b) Actual. Source: Ref 17 In addition to improved ease of processing, preheating ahead of friction stirring has also been...
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Published: 01 June 2016
Fig. 2 United States Council for Automotive Research demonstration structure built using (a) friction stir linear welding and (b) laser-assisted self-pierce rivet joining processes. Source: Ref 7 More
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Published: 01 August 2018
Fig. 27 Inspection of a lap friction stir welded (FSW) joint: comparison of (a) immersion ultrasonics synthetic aperture focusing technique, or SAFT (frequencies ≤50 MHz), with (b) laser-ultrasonic SAFT (frequency ≤220 MHz) More
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...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006545
EISBN: 978-1-62708-290-7
... to delve deeper. Sources for polymer AM are not discussed, although the section on lasers is applicable to a number of polymer processes. Also included are brief discussions of the utility of the three main energy sources and alternative energy sources for solid-state welding. Arcs The electric arc...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001465
EISBN: 978-1-62708-173-3
...-gravity environments and describes the unique aspects of the space environment. It compares the applicable welding processes, namely, electron-beam welding, laser-beam welding, and gas-tungsten arc welding and examines the metallurgy of low-gravity welds. Steps taken to ensure the continued development...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006715
EISBN: 978-1-62708-210-5
... temper exhibits outstanding stretch-forming characteristics. Alloy 6056 sheet is weldable using fusion welding methods (gas metal arc welding, or GMAW, gas tungsten arc welding, or GTAW, and laser beam welding) and friction stir welding. Laser welding was used to join 6056 sheet to stringers...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006502
EISBN: 978-1-62708-207-5
... the weldability of aluminum alloys, such as dual spot welding for keyhole stability, pulsed mode for eliminating solidification cracking, laser spot stirring for porosity suppression, and laser-hybrid methods for improving gap-bridging ability and weld penetration depth. The addition of filler metal can...