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fusion welding

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
... Abstract This chapter discusses the fusion welding processes, namely oxyfuel gas welding, oxyacetylene braze welding, stud welding (stud arc welding and capacitor discharge stud welding), high-frequency welding, electron beam welding, laser beam welding, hybrid laser arc welding, and thermit...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... Abstract During fusion welding, the thermal cycles produced by the moving heat source causes physical state changes, metallurgical phase transformations, and transient thermal stresses and metal movement. This chapter begins by discussing weld metal solidification behavior and the solid-state...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
... decisions. It discusses the basic concepts of fusion welding and the differences between solid-solution-hardened and precipitation-hardened wrought superalloys. It addresses joint integrity, design, weld-related cracking, and the effect of grain size, precipitates, and contaminants. It covers common fusion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290001
EISBN: 978-1-62708-306-5
... examining the various joining processes, namely fusion welding, solid-state welding, brazing, soldering, mechanical fastening, and adhesive bonding. In addition, it provides information on several design considerations related to the joining process and selection of the appropriate process for joining...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290137
EISBN: 978-1-62708-306-5
... weld zone. When metallurgical reactions occur, they can either benefit or adversely affect the properties of the joint. From a metallurgical perspective, the application of both fusion welding and solid-state welding processes must be evaluated using appropriate weldability testing methods for their...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290023
EISBN: 978-1-62708-306-5
... welding gas metal arc welding plasma arc welding plasma-GMAW welding shielded metal arc welding shielding gases submerged arc welding FUSION WELDING PROCESSES involve localized melting and solidification and are normally used when joining similar material combinations or materials belonging to...
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
... cause melting (or fusion) in any metal or alloy and can do so very quickly. When the flow of current ceases, the electrode force is maintained while the weld metal rapidly cools and solidifies. The electrodes are retracted after each weld, which usually is completed in a fraction of a second. The...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310201
EISBN: 978-1-62708-286-0
... microsegregation in the fusion zone with increasing alloy content. There are thermodynamically metastable conditions due to the low diffusion rates in the face-centered cubic (fcc) matrix. The influence of carbon has been well addressed using low-carbon versions of all grades whenever welding involves...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
... the joint should be considered. However, when dissimilar metals are joined by fusion welding processes, alloying between the base metals and a filler metal, when used, becomes a major consideration. The resulting weld metal can behave much differently from one or both base metals during subsequent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130503
EISBN: 978-1-62708-284-6
.... By far, the most common steel welding problems are associated with poor workmanship, such as lack of fusion, lack of penetration, porosity, undercut, arc strikes, and others. The number and size of such discontinuities may be cause for rejection by most codes and can act as stress-concentration sites...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720411
EISBN: 978-1-62708-305-8
... root of a weld joint to support molten weld metal Shrinkage voids: Cavity-type discontinuities normally formed by shrinkage during solidification Oxide inclusions: Particles of surface oxides that have not melted and are mixed into the weld metal Incomplete fusion (also known as lack of...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
... paint by their inorganic composition and the fusion of the coating matrix to the substrate metal. Porcelain enamels of all compositions are fired at 425 °C (800 °F) or above. The basic material of the porcelain enamel coating is called a frit, which is a special glass of small friable particles produced...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280211
EISBN: 978-1-62708-267-9
... effect of coating and welding processes. chemical composition creep-rupture properties microstructure physical properties precipitation hardening superalloys tensile properties solution heat treatment directional solidification...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130001
EISBN: 978-1-62708-284-6
... performance of the design process of a component. A heat-transfer model, coupling with a phase transformation model, a thermomechanical model, and a thermochemical model, is also considered. The chapter further provides information on the failure aspects of and heat treatment procedures applied to welded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170351
EISBN: 978-1-62708-297-6
... article also explains how primary alloying elements affect corrosion and wear behaviors and how they influence fabrication processes such as forming, forging, welding, brazing, and soldering. alloying elements aluminum alloys corrosion behavior wear behavior Composition Cast aluminum alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
..., thermoplastic composites can be joined by melt fusion, dual resin bonding, resistance welding, ultrasonic welding, or induction welding, as well as by conventional adhesive bonding and mechanical fastening. In general, structural bonds using thermoset such as epoxy adhesives produce...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280203
EISBN: 978-1-62708-267-9
... fusion welding or solid-state bonding to remove residual smut, which can cause poor-quality weldments. There is less need for pickling prior to arc, electron beam, or other fusion welding, unless an inspection of the test weldments reveals porosity or inclusions that are a result of pickup from the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.9781627082914
EISBN: 978-1-62708-291-4
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550223
EISBN: 978-1-62708-307-2
... Machining of cast structures or mill products is required, and welding invariably is needed in casting repair or buildup of structures from castings or mill products. Powder metallurgy processing is used for some applications. At each of these steps, the mechanical and physical properties of the titanium in...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550033
EISBN: 978-1-62708-307-2
... alloys can be difficult to fusion weld. The copper content in some of the 2 xxx and 7 xxx alloys makes them susceptible to weld cracking during fusion welding operations. Fig. 2.1 Fatigue strength comparison for aluminum. Source: Ref 2.1...