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seams
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Published: 15 January 2021
Fig. 36 (a) Surface of Ti-6Al-4V bar with seams. (b) Section through seams showing oxide and blunt tips. Kroll’s etch
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Published: 01 January 2006
Fig. 23 Examples of (a) hems and seams and (b) hemming die set
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Published: 01 January 2006
Fig. 10 Special punches and dies for producing lock seams in a press brake
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Published: 01 January 2006
Fig. 10 Two methods of high-frequency welding of longitudinal seams in tubing. (a) Sliding contacts introduce current to the tube edges. (b) Multiturn induction coil induces current to the tube edges.
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Published: 01 January 2005
Fig. 34 (a) Seams and (b) slivers caused in rolled material by the presence of surface inclusions. Courtesy of V. Demski, Teledyne Rodney Metals
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Published: 31 October 2011
Fig. 19 Catalytic converter assembly consisting of seams joined by the nonvacuum electron beam welding process
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Published: 01 January 2003
Fig. 34 Rust-colored streaks transverse to horizontal weld seams in the sidewall of a type 316L stainless steel tank. Source: Ref 10
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Published: 01 January 1987
Fig. 99 Fractures in AISI 5160 wire springs that originated at seams. (a) Longitudinal fracture originating at a seam. (b) Fracture origin at a very shallow seam, the arrow indicates the base of the seam. (J.H. Maker, Associated Spring)
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in Procedure Development and Practice Considerations for Electron-Beam Welding[1]
> Welding, Brazing, and Soldering
Published: 01 January 1993
Fig. 19 Catalytic converter assembly consisting of seams joined by EBW-NV process
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in Problems Associated with Heat Treated Parts
> Analysis and Prevention of Component and Equipment Failures
Published: 30 August 2021
Fig. 5 Micrographs of cracks after heat treatment caused by seams in the steel. (a) Society of Automotive Engineers (SAE) 8630 steel as-quenched; microstructure is martensite where cracking initiated from rolling seam (b) SAE type 403 stainless steel as-quenched and tempered; microstructure
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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
... Abstract This article describes the process applications, advantages, and limitations of resistance seam welding. The fundamentals of lap seam welding are also reviewed. The article details the types of seam welds, namely, lap seam welds and mash seam welds, and the processing equipment used...
Abstract
This article describes the process applications, advantages, and limitations of resistance seam welding. The fundamentals of lap seam welding are also reviewed. The article details the types of seam welds, namely, lap seam welds and mash seam welds, and the processing equipment used for lap seam welding. The primary factors used to determine the selection of electrodes, including alloy type and wheel configuration, are reviewed. The article also describes weld quality and process control procedures.
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 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...
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, 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. It describes the four basic types of resistance seam weld machines: circular, longitudinal, universal, and portable. The article concludes with a discussion on weld quality and process control for seam welding.
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in Procedure Development and Practice Considerations for Resistance Welding[1]
> Welding, Brazing, and Soldering
Published: 01 January 1993
Fig. 11 Process variations of seam welding. (a) Lap seam welding. (b) Mash seam welding. (c) Metal finish seam welding. (d) Electrode wire seam welding. (e) Foil butt seam welding
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Published: 01 January 2006
Fig. 17 Muffler lock seam constructions. The double-lock seam construction (right) helps prevent liquid penetration between the wraps.
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Published: 31 October 2011
Fig. 2 (a) Lap seam weld, (b) mash seam weld with flat electrodes, and (c) mash seam weld with radiused (contoured) electrodes. Flat electrodes in mash seam welding should not be used when sheet thickness is less than 1mm (0.040 in.). Radiused electrodes can be used for sheet thicker than 1mm
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in Procedure Development and Practice Considerations for Resistance Welding
> Welding Fundamentals and Processes
Published: 31 October 2011
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Published: 01 January 2002
Fig. 26 Seam in rolled 4130 steel bar (a) Closeup of seam. Note the linear characteristics of this flaw. (b) Micrograph showing cross section of the bar. Seam is normal to the surface and filled with oxide. 30×
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in Failures Related to Hot Forming Processes
> Analysis and Prevention of Component and Equipment Failures
Published: 30 August 2021
Fig. 9 Seam in rolled 4130 steel bar. (a) Closeup of seam. Note the linear characteristics of this flaw. (b) Micrograph showing cross section of the bar. Seam is normal to the surface and filled with oxide. Original magnification: 30×
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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 seam welding. It concludes with a discussion on the welding equipment and other factors associated with resistance spot and seam welding. aluminum alloys copper alloys electrode force low-carbon steel resistance spot welding seam welding stainless steel surface preparation weld lobe weld...
Abstract
This article describes the significance of the three variables that affect the resistance spot welding process: welding current, electrode force, and welding time. It presents the effects of weld spacing and surface preparation on weld quality. The article elaborates the typical sequence of steps for determining the satisfactory conditions for spot welding and the mechanical aspects that affect this process. It considers the effects of process variables on the weld lobe. The article reviews surface preparation, part fit-up, electrode drives, weld parameters, and tests associated with seam welding. It concludes with a discussion on the welding equipment and other factors associated with resistance spot and seam welding.
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