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continuous seam welds

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980141
EISBN: 978-1-62708-342-3
... the characteristics of pure metals and alloys at higher temperatures. The processes involved in extrusion are then covered. The chapter provides details on how the toughness and fracture characteristics of metals and alloys affect the extrusion process. The weld seams in hollow profiles, the production of composite...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290061
EISBN: 978-1-62708-306-5
... or friction drive that contacts the peripheral surface of the electrode wheel. The series of spot welds is made without retracting the electrode wheels or releasing the electrode force between spots, although the electrode wheels may advance either continuously or intermittently. Advantages of seam...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
... and concentration in continuous seam welding by both processes. In high-frequency induction welding, the depth to which current flows depends on the frequency and the resistive and magnetic properties of the workpiece. At higher frequencies, current flow is shallower and more concentrated near the work surface...
Image
Published: 01 December 2015
liquid to run off, rather than impinge directly on the concrete support. (i) Continuous weld for horizontal stiffeners prevents traps and crevices from forming. (j) Square sections formed from two L-shape members need to be continuously welded to seal out the external environment. More
Image
Published: 01 August 1999
of the member allows liquid to run off, rather than impinge directly on the concrete support. (i) Continuous weld for horizontal stiffeners prevents traps and crevices from forming. (j) Square sections formed from two L-shape members need to be continuously welded to seal out the external environment. More
Image
Published: 01 August 1999
of the member allows liquid to run off, rather than impinge directly on the concrete support. (i) Continuous weld for horizontal stiffeners prevents traps and crevices from forming. (j) Square sections formed from two L-shape members need to be continuously welded to seal out the external environment. More
Image
Published: 01 January 2000
at the bottom of the member allows liquid to run off, rather than impinging directly on the concrete support. (i) Continuous welding is necessary for horizontal stiffeners to prevent the formation of traps and crevices. (j) Square sections formed from two L-shaped members require continuous welding to seal out More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270059
EISBN: 978-1-62708-301-0
..., 1986, without warning, causing fatal injuries and damage to environment and property. The failure was due to a defect in the ERW seam weld and corrosion. On Dec. 24, 1988, in Missouri, a pipeline carrying oil burst without warning and 800,000 gallons of crude oil spilled into the Missouri River...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930057
EISBN: 978-1-62708-359-1
.... Planar discontinuities are best detected normal to the plane of the discontinuities, but missed seams and LOP often appear as continuous porosity when viewed looking down from the crown to the root of the weld in the plane of the discontinuity. Because of the inherent dependence of both radiographic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720345
EISBN: 978-1-62708-305-8
... line. The frequency of variation usually corresponds to weld-current variation. Increased use of ultrahigh frequency current for welding has minimized the occurrence of stitching. The nondestructive inspection of resistance welded tube can be performed continuously on a welding machine...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820177
EISBN: 978-1-62708-339-3
... usually is of concern in lower-strength plate steels—less than 550 MPa (80 ksi) and low hardness (<HRC 22)—used in rolled and longitudinally seam welded or electric resistance welded pipe, or plate steels used in the manufacturing of refinery vessels and tanks. Fig. 1 Hydrogen-induced cracking...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290137
EISBN: 978-1-62708-306-5
...). Mechanical vibrations are transmitted through a coupling system to the welding tip and into the workpieces. The tip vibrates laterally, essentially parallel to the weld interface, while static force is applied perpendicular to the interface. Spot welding ( Fig. 6.24 ) and continuous seam welding can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050175
EISBN: 978-1-62708-311-9
... locations of forging cracks from cold forging are shown in Fig. 9.6 . Seams result from elongated, trapped gas pockets or from cracks. The surfaces generally are heavily oxidized and decarburized. Depth varies widely, and surface areas sometimes may be welded together in spots. Seams may be continuous...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930197
EISBN: 978-1-62708-359-1
... and embrittlement Unfavorable cooling rate in the weld metal or heat-affected zone (HAZ) High residual stresses Environmental conditions not contemplated in the design of the weld. These comprise accidental overload, continual loads higher than intended, fatigue, abnormal temperatures, and marine or other...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
... Abstract This chapter describes the processes involved in the fabrication of wrought and cast metal products. It discusses deformation processes including bending and forming, material removal processes such as milling, cutting, and grinding, and joining methods including welding, soldering...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
... temperature, and so forth. The major applications of induction technology include through heating, surface heating (for surface heat treatment), metal melting, welding, brazing, and soldering. This chapter summarizes the selection of equipment and related design considerations for these applications...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... Abstract This appendix provides detailed information on design deficiencies, material and manufacturing defects, and service-life anomalies. It covers ingot-related defects, forging and sheet forming imperfections, casting defects, heat treating defects, and weld discontinuities. It shows how...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720321
EISBN: 978-1-62708-305-8
... surfaces. A typical crack in a bar is shown in Fig. 2(g) . Seams Seams result from elongated trapped gas pockets or from cracks. The surfaces are generally heavily oxidized and decarburized. Depth varies widely, and surface areas sometimes may be welded together in spots. Seams may be continuous...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090349
EISBN: 978-1-62708-266-2
... or by plate rolling and seam welding. Pipes of 304 mm (12 in.) diam or less are generally extruded, while larger pipes are plate rolled and welded. Extruded pipe is usually delivered in the mill-annealed condition, which varies from one pipe fabricator to another. As a result, some pipes are delivered...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030096
EISBN: 978-1-62708-282-2
... deposits. Tank manways were uncovered, and similar conditions were found. As shown in Fig. 26 , moundlike deposits were strung out along weld seams in the tank bottoms. Fig. 26 Moundlike microbiological deposits along a weld seam in the bottom of a type 304L stainless steel tank after several...