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Welding parameters

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560309
EISBN: 978-1-62708-291-4
... transformation characteristics of the steel and the cooling rate after the weld has solidified. This cooling rate varies with time and distance from the fusion front and is influenced by a number of welding parameters. For example, it decreases when the rate of heat input into the weld metal is increased, when...
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
... weld, then austenitic filler, such as 309L, can be used. Table 1 summarizes the major metallurgically important parameters for the various types of stainless alloys. It is prudent to consult with the manufacturer’s data sheets for specific recommendations on alloys that they produce as they are...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... fatigue life can be obtained by reducing the effects of one or more of these parameters. This is particularly true for cracks starting from the weld toe, which is by far the most common failure site. In load-carrying fillet welds, however, cracks can start at the weld root and propagate through the weld...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230401
EISBN: 978-1-62708-298-3
... fracture surface. (a) Low magnification showing overall structure. (b) High magnification showing taffylike features of centerline weld crack. Source: Cotton and Field 1997 The selection of the welding process and process parameters has a significant effect on the weld composition and structure...
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
... parameters, to have essentially no internal upset. Sections of this chapter were adapted from “Resistance Welding” in Metals Handbook Desk Edition , 2nd ed., ASM International, 1998 doi: 10.31399/asm.hb.mhde2.a0003207 . ...
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
... composition of the deposited weld metal, weld-metal mechanical properties, certain process parameters, or combinations of all factors. In the flux cored arc welding (FCAW) process, the heat for welding is produced by an electric arc between a continuous filler metal electrode and the workpiece. A tubular...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290137
EISBN: 978-1-62708-306-5
... successfully cold welded is shown in Fig. 6.10 . Because welding lends itself to numerous techniques of forming, there are many variants of the cold pressure welding process. In order to obtain bonding in cold welding, plastic deformation of one or both metals is required, implying that a basic parameter is...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500019
EISBN: 978-1-62708-317-1
...) Fracture in stretch flanging Table 2.7 Parameters of the bending fixture seen in Fig. 2.23 Parameter name Value Sample thickness ( t ) # mm Sample width ( W ), mm (in.) 60 (2.4) Sample length ( L ), mm (in.) 60 (2.4) Roll diameter ( d ), mm (in.) 30 (1.2) Roll spacing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400089
EISBN: 978-1-62708-316-4
... stamping, deep drawing, ironing, and blanking operations. blanking friction lubricants stamping tribological test FRICTION AND LUBRICATION in sheet metal forming are influenced by such parameters as material properties, surface finish, temperature, sliding velocity, contact pressure, and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
... gas protection can allow the formation of an oxide film on the surface of the deposited weld metal. Care needs to be taken to remove this oxide before multipass welding to avoid the problems of entrapped oxide and lack-of-fusion defects. Welding parameters and fabrication sequence often can be...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
... Abstract This chapter discusses the various methods used to join titanium alloy assemblies, focusing on welding processes and procedures. It explains how welding alters the structure and properties of titanium and how it is influenced by composition, surface qualities, and other factors. It...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460017
EISBN: 978-1-62708-285-3
... Abstract This chapter reviews the current understanding of high-pressure cold spraying for different materials, covering widely accepted general mechanisms for particle deposition and the processes and parameters involved. It begins by reviewing the mechanisms of bonding. An overview of the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030096
EISBN: 978-1-62708-282-2
... precipitation reactions Shielding molten and hot metal surfaces from reactive gases in the weld environment Removing chromium-enriched oxides and chromium-depleted base metal from thermally discolored (heat tinted) surfaces Choosing the proper welding parameters ( Ref 1 ) The corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610263
EISBN: 978-1-62708-303-4
... fatigue of welded joints: stress concentrations due to joint and weld geometry, stress concentrations due to localized defects, and welding residual stresses. Improvement in fatigue life can be obtained by reducing the effects of one or more of these parameters. This is particularly true for cracks...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130503
EISBN: 978-1-62708-284-6
... of brittle failures are especially insidious, because the fracture occurs at stress levels and ductility levels well below the design parameters. Two examples of brittle failure in steel welds are hydrogen-assisted cracking and solidification cracking. Among the discontinuities illustrated in...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090359
EISBN: 978-1-62708-266-2
... Abstract This chapter describes how ultrasonic testing came to be a viable method for evaluating intergranular stress-corrosion cracking (SCC) in large-diameter stainless steel pipe welds in boiling water reactor service. Intergranular SCC can be difficult to detect using nondestructive...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120065
EISBN: 978-1-62708-269-3
... depend principally on the cooling rate from above the beta transus temperature, which is correspondingly influenced by the welding process, process parameters, and other welding conditions (such as workpiece geometry and fixturing). (See Chapter 3 for more details on the effects of temperature and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140201
EISBN: 978-1-62708-264-8
... Abstract Temperature is a critical process parameter in the heat treatment and forging of steel and must be accurately measured to properly control it. This appendix discusses the operating principles of thermocouples and infrared pyrometers, describing the various types as well as advantages...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400129
EISBN: 978-1-62708-316-4
... Abstract This chapter discusses the design and application of sheet forming presses. The discussion covers critical variables and design parameters, key components, basic machine configurations, and energy and load requirements. The chapter also discusses time-dependent characteristics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220273
EISBN: 978-1-62708-259-4
... nitrocarburizing. It describes the primary objectives of each treatment along with processing sequences, process parameters, and related phase transformations. The chapter contains more than 100 images, including time-temperature diagrams, transformation curves, data plots, and detailed micro- and macrographs. It...