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Book Chapter

By Murali D. Tumuluru
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005594
EISBN: 978-1-62708-174-0
... Abstract Resistance spot welding (RSW) is the most widely used joining technique for the assembly of sheet metal products. This article discusses the process description, evaluation methods, and applications of RSW. It describes the equipment needed for RSW and explicates the major functions...
Book Chapter

By Neville T. Williams
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001363
EISBN: 978-1-62708-173-3
... Abstract Resistance spot welding (RSW) is a process in which faying surfaces are joined in one or more spots by the heat generated by resistance to the flow of electric current through workpieces that are held together under force by electrodes. This article discusses the major advantages...
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Published: 31 October 2011
Fig. 1 Measured waveforms of welding current for resistance spot welding. (a) Single-phase alternating current. (b) Single-phase direct current. (c) Three-phase direct current. (d) Medium-frequency direct current. Source: Ref 3 More
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Published: 31 October 2011
Fig. 12 Schematic illustration of the resistance spot welding process. Source: Ref 2 More
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Published: 31 October 2011
Fig. 12 Resistance spot welding process More
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Published: 01 August 2013
Fig. 16 Resistance spot welding pulsed current profile. Pulse 1 = pulse 2, I 1 = I 2 ; cooling 1 = 20 ms, cooling 2 = 200 ms; pulse 3 = 100 ms, I 3 = 4.3 kA; hold time = 100 ms More
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Published: 01 December 1998
Fig. 1 Setup for resistance spot welding. Sectional view showing shape of nugget and position of nugget relative to inner and outer surfaces of workpieces More
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Published: 01 January 1993
Fig. 8 Resistance spot welding process More
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Published: 30 November 2018
Fig. 11 Roll resistance spot welding of a Z-section longitudinal stiffener to a sheet using intermittent electrode motion, a welding force, and a forging force. Dimensions given in inches More
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Published: 01 January 1993
Fig. 1 Standard-resistance spot welding electrode face and nose configurations More
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Published: 31 October 2011
Fig. 1 Cross-sectional sketch of resistance spot welding of two sheets More
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Published: 31 October 2011
Fig. 19 Effect of resistance spot welding electrode gun type on electrode life for selected steels and alloys More
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Published: 01 December 2004
Fig. 29 Low-carbon hot-rolled sheet, resistance spot weld (composition and weld parameters unknown). Macrostructure shows 60% penetration of the weld and columnar growth pattern in the fusion zone. Etchant: 85 mL H 2 O + 15 mL HNO 3 + 5 mL methanol. Magnification: 10× More
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Published: 01 January 1987
Fig. 111 Fatigue fracture surface of a resistance spot weld that broke during bond testing of an aluminum alloy 7075-T6 specimen. (a) Note voids (arrows) caused by molten-metal shrinkage in the weld nugget. (b) Both fatigue striations and shrinkage voids are evident, which indicates More
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Published: 30 November 2018
Fig. 26 Resistance spot weld on A359/SiC/10 p More
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Published: 30 November 2018
Fig. 2 Resistance spot weld on A359/SiC/10 p . Source: Ref 2 More
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Published: 01 January 1993
Fig. 4 Resistance spot weld on A359/SiC/10 p More
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Published: 30 November 2018
Fig. 1 Resistance and heating profiles in spot welding. (a) The larger resistance at the interface ( R i ) results in (b) greater heating and melting for a fusion weld at the interface between the two workpieces. R c , surface contact resistance; R m , resistance of the metal. Source More
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Published: 31 October 2011
Fig. 2 Resistance and heating profiles in spot welding. (a) The larger resistance at the interface ( R i ) results in (b) greater heating and melting for a fusion weld at the interface between the two workpieces. R c , surface contact resistance; R m , resistance of the metal More
Book Chapter

By D.J. Spinella
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006514
EISBN: 978-1-62708-207-5
... Abstract The resistance welding processes commonly employed for joining aluminum are resistance spot welding, resistance seam welding, resistance roll welding, upset and flash welding for butt joining welding, and high-frequency resistance welding. This article discusses the general factors...