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Welding parameters

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Published: 01 December 1984
Figure 1-23 Macroetching used to reveal the influence of weld parameters on penetration depth and shape. Top example shows GMA (gas-metal arc) welds at a heat input of 45 kJ/in using atmospheres of 100% CO 2 , argon plus 25% CO 2 , and argon plus 2% O 2 (left to right). Bottom example shows More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930217
EISBN: 978-1-62708-359-1
... Abstract This article reviews the fundamental and specific factors that control the properties of steel weldments in both the weld metal and heat-affected zone (HAZ). The influence of welding processes, welding consumables, and welding parameters on the weldment properties is emphasized...
Image
Published: 01 November 2012
Fig. 16 Geometry parameters that affect weld toe stress concentration. r , weld toe root radius; θ, weld angle; L , toe-to-toe weld length. Source: Ref 16 More
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Published: 01 July 1997
Fig. 8 Geometry parameters that affect weld toe stress concentration r , weld toe root radius; θ, weld angle; L , toe-to-toe weld length More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930071
EISBN: 978-1-62708-359-1
... quantitative understanding of strain development in a solidifying weld, the practical approach taken to minimize the mechanical factor is to reduce the overall weld restraint through judicious joint design and appropriate choice of welding parameters. A simple way to minimize the restraint on a solidifying...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
... that simulate parts to be welded. Typical ranges for welding parameters are listed in Tables 12.3 and 12.4 . Typical weld parameters for gas tungsten arc welds Table 12.3 Typical weld parameters for gas tungsten arc welds Parameter Ti-6Al-4V-2Sn Ti-8Al-1Mo-1V Thickness, mm (in.) 1.02...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820099
EISBN: 978-1-62708-339-3
... has been made in defining the correct parameters and chemistry modifications for achieving sound welds. This chapter provides a basic understanding of the development, grade designations, microstructure, properties, and general welding considerations of duplex stainless steel. It also discusses...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700215
EISBN: 978-1-62708-279-2
..., and (2) determining mechanical performance of those welds. Static, dynamic, hardness, and fatigue properties of welds were determined. The quality of welds produced and the effect of weld parameters on nugget fracture and fusion zone were evaluated using peel, fatigue, and impact testing. Ultrasonic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930163
EISBN: 978-1-62708-359-1
... specimen for the linear elastic parameter to work and the plastic deformation must follow the correct pattern for the elastic-plastic parameters to work. The pattern of yielding is such that the plastic deformation is confined to the uncracked ligament behind the crack tip. When the weld metal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930179
EISBN: 978-1-62708-359-1
... a general guideline for many applications. Rating of selected welding processes as a function of weld parameters and characteristics Table 1 Rating of selected welding processes as a function of weld parameters and characteristics Parameter or characteristic Process SMAW GTAW GMAW FCAW...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930023
EISBN: 978-1-62708-359-1
... Tekken Test (Cold Crack Test) The Tekken Test, developed in Japan, uses several specimen dimensions and joint designs ( Fig. 5 ). The Y joint provides more restraint than the U- or double-U joint designs. In these tests, preheat and welding parameters are varied to alter the stress state, rather...
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
... with a fully inert gas mixture. If mechanical properties equal to that of the base metal are not required in the 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820001
EISBN: 978-1-62708-339-3
... in the weld environment, by removing chromium-enriched oxides and chromium-depleted base metal from thermally discolored (heat tinted) surfaces, and by choosing the proper welding parameters. Weld Microstructures Weldments exhibit special microstructural features that need to be recognized...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930003
EISBN: 978-1-62708-359-1
... between casting and welding including: Dynamic nature of welding process Unknown pool shape Epitaxial growth Variations in temperature gradient and growth rates within the pool In solidification mechanics, the important parameters that influence microstructure are temperature gradient...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2004
DOI: 10.31399/asm.tb.ps.t62440001
EISBN: 978-1-62708-352-2
... Comparison between Solders and Brazes 1.1.7 Pressure Welding and Diffusion Bonding 1.1.7.1 Pressure Welding 1.1.7.2 Diffusion Bonding 1.2 Key Parameters of Soldering 1.2.4 Filler Spreading Characteristics 1.2.3 Fluid Flow 1.2.1 Surface Energy and Surface Tension 1.2.2 Wetting...
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
... by plastic strain (see discussion of Fig. 7.3 ). The spheroidized zone in turn shades into unaffected parent metal. The widths of these various structurally altered zones vary considerably depending on several welding parameters, particularly the speed of rotation and the applied pressure ( Ref 9...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
... practice to incorporate a thin layer of neat resin film to provide gap filling. Typical weld parameters are less than 10 seconds at 70 to 200 psi (480 to 1380 kPa) pressure. This process is somewhat similar to spot welding of metals. Induction Welding Induction welding techniques have been developed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930311
EISBN: 978-1-62708-359-1
..., beta grain size is determined principally by the weld energy input, with a higher energy input promoting a coarser grain size. The beta grain size may be reduced somewhat by altering the welding parameters or using alternate welding processes which provide a lower net energy input (e.g., laser...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700177
EISBN: 978-1-62708-279-2
..., martensitic (MS), and TRIP steels of any type, degraded by exposure to 650 °C thermal cycling for any duration. It is, therefore, recommended that such steels should not be processed (welded, straightened, or repaired) by the application of heat ( Ref 12.13 ). Provided the welding parameters are adjusted...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930039
EISBN: 978-1-62708-359-1
... Characterization Techniques Externally Observed Macroscopic Features Several factors associated with the production and performance of welds are macroscopic and easily observed. The most obvious of these are the size, shape, and general appearance of the weld. To a large extent, these parameters depend...