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weld quality

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Image
Published: 01 January 2015
Fig. 12.14 Surface appearance of a good-quality friction stir weld in 6.35 mm (0.25 in.) thick Ti-6Al-4V. Source: Ref 12.18 More
Image
Published: 01 January 2015
Fig. 12.15 Cross section of a good-quality friction stir weld in 6.35 mm (0.25 in.) thick Ti-6Al-4V. Source: Ref 12.18 More
Image
Published: 01 January 2015
Fig. 12.16 Cross section of a good-quality friction stir weld in 3 mm (0.125 in.) thick Ti-6Al-4V sheet. Source: Ref 12.18 More
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 section on some of the practices to ensure safety and weld quality. welding stainless steel weld quality NEARLY ALL WELDING of stainless steel is done by end users or processors. Like thermal processing, it is complex in theory and practice. This chapter gives a basis for understanding...
Image
Published: 01 July 1997
Fig. 26 Comparison of four common industrial situations: Light Industry-High Quality Welding, Light Industry-Low Quality Welding, Heavy Industry-High Quality Welding, Heavy Industry-Low Quality Welding. Mild steel cruciform weldments R = 0. The small-size, high-welding quality weldments More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270080
EISBN: 978-1-62708-301-0
... to be a brittle fracture that initiated from a zone of poor-quality weld. It also provides photographic evidence of a weld crack in the heat-affected zone and includes a drawing of a modified weld design that passed subsequent testing. fractography metallography tie rod visual examination Summary...
Image
Published: 01 April 2013
Fig. 7 Examples of uses for metallography. (a) Equiaxed ferrite grain size in plain carbon steel. (b) Ion carburized gear tooth showing case depth. (c) Microstructure of galvanized coating on steel, thickness and quality. (d) Multipass weld quality in type 304 stainless steel plate. Source More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430351
EISBN: 978-1-62708-253-2
... defects, forming and welding defects, design defects, improper cleaning methods, and ineffective maintenance. It also includes case studies and illustrations. boiler tubes chemical cleaning design defects forming defects material defects quality control welding defects Failures Attributed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
... steel sheet, formed in a variety of shapes, often can be welded more economically by oxyfuel gas welding than by other processes. Oxyfuel gas welding is capable of joining small-diameter carbon steel pipe (up to about 75 mm, or 3 in., in diameter) with resulting weld quality equal to competitive...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930179
EISBN: 978-1-62708-359-1
... results in poor-quality workmanship and can lead to failed parts, large warranty claims, and dissatisfied customers. It is to the advantage of the individual welder, job shop owner, end user, and others who depend on the weld repair industry to approach each repair with a thorough knowledge...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200220
EISBN: 978-1-62708-354-6
... with repairing castings that have been returned to the foundry Internal Failure Costs are expenses incurred in manufacturing castings that are scrapped in the foundry Rework Costs are the costs of welding casting discontinuities in the foundry Fig. 17-3 Quality cost report Quality costs...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930085
EISBN: 978-1-62708-359-1
.... Film cassettes that are double loaded with one fast and one slow film are used to accommodate the large variation in penetrated thickness across the weld. The sensitivity of the radiograph is assessed using image quality indicators (IQIs), which can either be fine wires placed across the weld...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930197
EISBN: 978-1-62708-359-1
..., which will necessarily differ as the cause differs. The procedure may consist of using a better weld contour, a more favorable filler metal, a more appropriate heat input (a different cooling rate for the weld metal and the HAZ), a more accurate fit-up, a higher-quality base metal, or different service...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930057
EISBN: 978-1-62708-359-1
... in the context of the fitness-for-service of the welded construction. Fitness-for-service is a concept of weld evaluation that seeks a balance among quality, reliability, and economy of welding procedure. Fitness-for-service is not a constant. It varies depending on the service requirements of a particular...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930141
EISBN: 978-1-62708-359-1
... depends to a rather large extent on the nature of the industrial application, that is, upon the size of the weldment and upon the quality of the welding and the postwelding procedures employed. The factors influencing the fatigue behavior of an individual weldment are reexamined in the first section...
Image
Published: 01 March 2000
Fig. 32 Typical example of an improper weld joint in hollow shape extrusion. (a) Split at the fracture (magnification, 2×). (b) Full cross section showing two poor-quality welds (magnification, 3×). (c) Partially bonded joint (magnification, 12×) More
Image
Published: 01 December 2018
Fig. 6.159 Low-magnification views of the (a) outer surface of a tube with multiple punctures from where leakage had taken place and showing weld crown with nonuniform curvature, 8×; and (b) inner surface with sharp ripples and deep undercuts indicating poor quality of weld, 8× More
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
... compared with laser welding. The hardness of resistance seam welds made with air cooling is less than that of laser welds (120 HV vs. 250 HV, respectively, for drawing-quality bare steel, and 170 HV vs. 300 HV, respectively, for organic-coated drawing-quality steel). Limitations of seam welding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200065
EISBN: 978-1-62708-354-6
... and techniques available at the foundry. The processes and procedures most commonly specified by the customer are those for heat treating and welding. It is easy to understand the concerns of the user, as these processes have the greatest effects on the metallurgical quality and serviceability of the casting...