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lap seam welds

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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
...: Ref 2 Fig. 6 Typical setup for an electrode wire seam welding process showing positions of wire relative to grooved wheel Fig. 1 Types of lap joints. (a) Pressure-tight joint. (b) Nonpressure-tight joint Fig. 2 (a) Lap seam weld, (b) mash seam weld with flat electrodes...
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
..., reinforced roll spot welding, and leak-tight seam welding. It provides information on the applications of lap seam weld, mash seam weld, and butt seam weld. The article reviews the advantages and limitations of seam welding compared to resistance spot welding, projection welding, and laser 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
.... Fig. 9 Resistance seam welding of an aircraft integral wing fuel tank using continuous electrode motion. Dimensions given in inches Fig. 10 Schematic showing lengthwise sectional view of proper nugget development in the weld zone of a pulsed lap seam weld. The length of the contact...
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 required distance for the next weld. This method is often used for aluminum and steel alloys less than 4.8 mm ( 3 16 in.) thick and selected metals greater than 4.8 mm ( 3 16 in.) thick. Lap Seam Welding In this process (also known as stitch or roll welding), the on and off...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005108
EISBN: 978-1-62708-186-3
...: Use of Two Gas Metal Arc Welded Blanks to Form an Automobile-Frame Rail Open Shapes Waste Metal Welding Methods Lap-Seam Welding Spot Welding Foil Butt-Seam Welding Use of Full Stock Width Odd-Shaped Blanks Nesting Effect of Rolling Direction Welded Blanks Large...
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
... Low Carbon Steels.” Data for uncoated steel are from Table 4 in this article. All data are for welding with class 2 electrodes. (b) For joining two sheets of steel in each of the two thicknesses. (c) Coated with 1.25 oz of zinc per square foot of sheet size Seam welding low-carbon steel...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005631
EISBN: 978-1-62708-174-0
... Overlap WI Weld toe or root surface 8 Lamination BM Base metal, generally near midthickness of section 9 Delamination BM Base metal, generally near midthickness of section Seam and lap … Base-metal surface, generally aligned with rolling direction 11 Lamellar tear BM Base metal...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005607
EISBN: 978-1-62708-174-0
... prepainted for automotive study Fig. 13 Lap shear coupon after tensile shear testing, showing nugget tearout indicative of a good weld Fig. 14 Typical lap shear failure loads of ultrasonically spot-welded coupons of aluminum alloys of interest to the automotive industry Fig. 7...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003425
EISBN: 978-1-62708-195-5
... and seam welded to wider widths with a handheld iron. Also, ply stacks can be tack melted together. Automated seaming Equipment takes multiple 30 cm (12 in.), 0° tape rolls and butt seams them to wide (i.e., 300 cm, or 118 in.) 0° or 45° roll stock. Sheet consolidating Wide roll 0° and 45° roll...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003227
EISBN: 978-1-62708-199-3
... to fracture of metals, including laps, seams, cold shuts, cracks, inclusions, porosity, fatigue, and stress corrosion cracking. failure analysis fractography macroscopic examination microscopic examination stress corrosion cracking surface defects visual examination Aspects of Failure That Can...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003227
EISBN: 978-1-62708-199-3
... to fracture of metals, including laps, seams, cold shuts, cracks, inclusions, porosity, fatigue, and stress corrosion cracking. failure analysis fractography macroscopic examination microscopic examination stress corrosion cracking surface defects visual examination EXAMINATION...
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
... Fig. 1 Chart showing combinations of metals that can be successfully cold welded (indicated by shaded box). Source: Adapted from Ref 3 Fig. 2 Schematic showing two dies being used for cold pressure lap welding of two metallic sheets. (a) Die position before welding. (b) Die...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... reduction may include: Laps appear as linear defects caused by the folding over of hot metal at the surface. These folds are worked into the surface but are not metallurgically bonded (welded) because of the oxide present between the surfaces. This creates a sharp discontinuity. Seams are a surface...
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
..., the trend toward increased adoption and use of LSW within the United States and abroad is expected to continue. The advantageous features of the LSW process have been demonstrated for welding numerous joint configurations (square-butt, continuous and discontinuous spot and intermittent seams, as well as lap...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... or Laps Seams Cracks Shear-Induced Porosity Grinding Burns The tensile strength of the material is exceeded, causing a rupture (separation or fragmentation event). The fracture can be ductile or brittle, and it may be ductile at the macroscale and brittle at the microscale, or vice versa...
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
... Ceramic and nonconsumable (e.g., copper) backings not usually applicable Lap welding Commonly used in all materials Maximum allowable gap = 0.05 × thickness of thinner member Tolerant of beam/seam misalignment Thin-on-top/thick-on-bottom joints easily accommodated Thick-on-top/thin...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005583
EISBN: 978-1-62708-174-0
... of 400 kHz and used an induction coil surrounding the tube. This technique for the seam welding of pipe and tube was highly successful and continues to be employed for pipe with outside diameters up to 406 mm (16 in.). 1952—Butt, lap, and T-joints Wallace Rudd and Robert Stanton invented a high...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006468
EISBN: 978-1-62708-190-0
.... No loss of magnetism at ends Voltage requirements increase as length increases, because of greater impedance of cable and part. Ends of parts must have shape that permits electrical contact and must be capable of carrying required current without excessive heating. Prod contacts Welds, for cracks...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001014
EISBN: 978-1-62708-161-0
... of sizes and cross sections. Most carbon steel and alloy steel hot-rolled bars and shapes contain surface imperfections with varying degrees of severity. Seams, laps, and slivers are probably the most common defects in hot-rolled bars and shapes. Another condition that could be considered a surface defect...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005680
EISBN: 978-1-62708-198-6
... types of resistance welding processes, including projection, butt, and seam welding. In projection welding, the current is concentrated at specific points. These points protrude from the workpiece ( Fig. 6a ). Projections are typically pressed or machined into the material prior to welding. During...