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roll spot welding

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Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001365
EISBN: 978-1-62708-173-3
...Abstract Abstract Resistance seam welding (RSEW) is a process in which the heat generated by resistance to the flow of electric current in the work metal is combined with pressure to produce a welded seam. This article discusses the various classes of the RSEW process, namely roll spot welding...
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
... footprint, L , is sufficient to contain three nuggets under the wheel ( n = 3). 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 Fig. 8 Recommended...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005640
EISBN: 978-1-62708-174-0
... with interrupted current Table 8 Seam welding low-carbon steel with interrupted current Data common to all welding speeds Pressure-tight joint (note 8 ) Roll spot welding Nonpressure-tight joint (note 10 , 11 ) Thickness of each of the two workpieces (note 1 , 3 ) Electrode width and shape...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005608
EISBN: 978-1-62708-174-0
... not actually seam welding, this roll spot welding operation can be accomplished on standard seam welder machines and is a useful production technique where a pressure-tight joint is not required. These lap seam welding techniques are the most simple and most readily accomplished in production. Where justified...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005620
EISBN: 978-1-62708-174-0
... welding, resistance spot welding, forge welding, and roll bonding. This article describes two methods based on rolling of sheet. The first is roll welding, where two or more sheets or plates are stacked together and then passed through rolls until sufficient deformation has occurred to produce solid...
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
... is illustrated in Fig. 11(b) . The diameter of the beam spot is approximately 3 by 5 mm (0.12 by 0.2 in.) on the metal sheet and 10 mm (0.4 in.) distance from the bottom of the roller. Incident angles of the laser beam were 45 μin. CO 2 laser and 30 μin. fiber laser, respectively. Laser roll welding...
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
... Fig. 1 Standard-resistance spot welding electrode face and nose configurations Fig. 2 Plot of weld time versus secondary weld current to obtain weldability lobes for selected 0.8 mm (0.03 in.) thick steels. Electrode parameters: force, 1.8 kN (0.20 tonf); tip diameter, 5.0 mm (0.20...
Book Chapter

Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001380
EISBN: 978-1-62708-173-3
... such as graphite or titanium oxide. The prepared plates are placed together and temporarily joined by spot welding to form a sandwich that is then roll welded, with at least partial welding occurring during the first rolling pass. The sandwich sometimes is heated prior to this first rolling pass. Whether hot...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001443
EISBN: 978-1-62708-173-3
... the diameter of spot or projection welds ( Table 5 ) Rolled sections are frequently welded in-line, thereby eliminating subsequent operations Recommended practice for seam welding of 1010 low-carbon steel Table 5 Recommended practice for seam welding of 1010 low-carbon steel Data are for material...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005800
EISBN: 978-1-62708-165-8
... the parameters associated with resistance spot welding, laser welding, and metal active gas welding. It also provides useful information of retained austenite volume fraction measured by x-ray diffraction and electron backscatter diffraction. The article also examines microstructure evolution during tensile...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001012
EISBN: 978-1-62708-161-0
... in summer and warmer in winter. Aluminum-coated steel sheet can be joined by electric resistance welding (spot welding or seam welding). It can also be metal arc welded, flash welded, or oxyacetylene welded. Thorough removal of grease, oil, paint, and dirt followed by wire brushing is recommended before...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001378
EISBN: 978-1-62708-173-3
... diameter and aluminum on the inside diameter Abstract Abstract Cold pressure welding can be accomplished by deforming in a lap or butt configuration, drawing, extrusion, and rolling. This article provides a discussion on cold pressure lap welding, cold pressure butt welding and cold pressure...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003094
EISBN: 978-1-62708-199-3
... with atmospheric corrosion resistance approximately two times that of carbon steel with copper A 633 Normalized HSLA structural steel for welded, riveted, or bolted construction suited for service at low ambient temperatures of −45 °C (−50 °F) or higher A 656 Hot-rolled HSLA structural steel with improved...
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
... processes with variations within each 1. Cold welding Press welding Forge welding Roll welding Toggle welding Hydrostatic impulse welding Shock-wave impulse welding 2. Hot pressure welding Pressure gas welding Forge welding 3. Roll pressure welding Hot, warm, or cold...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001270
EISBN: 978-1-62708-170-2
... Kure Beach, NC, 25 m (80 ft) lot 2.80 260.0 London (Stratford), Eng. 3.06 54.3 Halifax (Federal Building), N.S. 3.27 55.3 Widness, Eng. 4.48 174.0 Galeta Point Beach, Panama, C.Z. 6.80 336.0 Source: Ref 17 Effects of hot dip coatings on tip life during spot welding...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001067
EISBN: 978-1-62708-162-7
... by a wide variety of hot and cold methods. Can be easily stamped, bent, coined, sheared, spun, upset, swaged, forged, roll threaded, and knurled Weldability Can be readily soldered, brazed, gas tungsten arc welded, gas metal arc welded, or upset welded. its capacity for being oxyfuel gas welded...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003209
EISBN: 978-1-62708-199-3
..., essentially parallel to the weld interface, while static force is applied perpendicular to the interface. Spot welding and continuous seam welding can be accomplished by this method. In spot welding, the duration of the ultrasonic pulse (usually 1 s or less) is selected according to the thickness...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006696
EISBN: 978-1-62708-210-5
... and H392 tempers), the machinability is good. Alloy 5056 can generally be joined by arc welding or spot and seam resistance welding using any of the commercial procedures and methods, except that special techniques are needed for spot and seam resistance welding in the annealed (O temper) condition...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005628
EISBN: 978-1-62708-174-0
... Schematic of a spot weld. HAZ, heat-affected zone Fig. 27 Cross section of a DP780 steel weld with indentations from microhardness testing. Source: Ref 23 Fig. 28 Microhardness profiles of various material combinations. HSLA, high-strength, low-alloy; DP, dual phase. Source: Ref 14...
Book Chapter

By Samuel M. Purdy
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003750
EISBN: 978-1-62708-177-1
... reveal the quality characteristics of welds, the depth of penetration, the dilution of filler metal by base metal, the entrapment of flux, porosity and cracks, and the extent of the heat-affected zone (HAZ). In the heat treating shop, macroetching will reveal soft spots, tong marks, quenching cracks...