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weld bead morphology

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Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003785
EISBN: 978-1-62708-177-1
... in arc welded metals, organizing them according to the sectioning method by which they are observed. It describes the relationship between weld bead morphology and sectioning direction and its effect on measurement error. The article examines micrographs from stainless steel, aluminum, and titanium...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001343
EISBN: 978-1-62708-173-3
... sectioned weld, including features such as number of passes; weld bead size, shape, and homogeneity; and the orientation of beads in a multipass weld. The article provides examples that describe how welds are characterized according to the procedures. direct visual inspection homogeneity liquid...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005561
EISBN: 978-1-62708-174-0
... formation of various morphologies of α+β, including the grain-boundary, colony, basketweave, massive, and martensitic microstructures. Similar approaches to describe microstructure gradients in multi-pass welds in steels were performed by Reed and Bhadeshia ( Ref 140 ). In these analyses, the austenite...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005524
EISBN: 978-1-62708-197-9
... Abstract This article provides an overview of integrated weld modeling and presents strategic goals for the welding industry. It discusses the fundamentals of the underlying physics and the methodologies to solve the same. The article presents the pioneering work done to predict the heat...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001371
EISBN: 978-1-62708-173-3
... conditions and metal transfer and weld pool morphology. It presents constitutive equations for welding current, voltage, and travel rate for ESW. The article describes the metallurgical and chemical reactions in terms of fusion zone compositional effects, weld metal inclusions, solidification structure, and...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006301
EISBN: 978-1-62708-179-5
... of postweld cracking to an acceptable level. In multiple-pass welding, each succeeding bead tempers the one underneath or adjacent to it. Additional tempering is provided by the cumulative heating effect of the passes. The alternative to tempering the martensite is to modify the welding procedure by...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005322
EISBN: 978-1-62708-187-0
... stress relieving thermal properties through hardening welding fracture appearance graphite morphology alloying element conductive properties acoustic properties tool life CAST IRONS ARE A CLASS of alloys within the larger ferrous family of metals. The term cast iron designates a group of...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001432
EISBN: 978-1-62708-173-3
.... Equipment cost is moderate. Weld metal quality Strongly dependent on the skill of the welder. Lack of fusion or slag inclusions are potential problems. The relatively small beads usually result in a high percentage of refining in multipass welds, and very good toughness is achievable with some...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1
... indications that are found by nondestructive testing methods. Surface features that are causes for rejection include: Excessive mismatch at the weld joint Excessive bead convexity and bead reinforcement Excessive bead concavity, underfill, and undersized welds Sharp undercut and overlap at the...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006502
EISBN: 978-1-62708-207-5
.... , Farson D.F. , and Cho M.H. , Using a Hybrid Laser plus GMAW Process for Controlling the Bead Humping Defect , Weld. J. , Vol 85 , Aug 2006 , p 174s – 179s 30. Staufer H. , Laser Hybrid Welding in the Automotive Industry , Weld. J. , Vol 86 , Oct 2007 , p 36 – 40 31...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001444
EISBN: 978-1-62708-173-3
... proportional to the average width of the weld, which also strongly influences shrinkage and distortion. Damage to heat-sensitive attachments, inserts, or encapsulated materials close to the weld joint is controlled mainly by regulating the width and shape of the weld bead. Damage to nearby finished...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005600
EISBN: 978-1-62708-174-0
... 2003 , p 49 10. Jasnau U. and Sumpf A. , Laser Hybrid Welding with High Power Fiber Laser—New Chances for Use of Laser Technology , Hitsaus. Tekniikka , May 2006 , p 57 – 61 11. Shinn B.W. , Farson D.F. , and Denney P.E. , Control of Weld Bead Shape with...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001409
EISBN: 978-1-62708-173-3
... automatic processes, a trailing gas shield is recommended to prevent excessive oxidation of the weld bead. Argon, helium, or mixtures of the two can be used for shielding. Only high-purity gas should be used. Standard welding grade gas may not be adequate because of cylinder contamination, and standard...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001339
EISBN: 978-1-62708-173-3
... of great interest to the engineer, while an acidic flux means excellent slag behavior, a characteristic of interest to the welder attempting to improve weld bead morphology and deposition rate. Table 3 classifies the various coating formulations for SMAW electrodes using the descriptors of...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001465
EISBN: 978-1-62708-173-3
... physical and mechanical influences by microgravity. The density, melting point, thermal conductivity, and composition of these base metals are listed in Table 1 . In this experiment, an electron beam was used to cut and also produce a weld bead on a 165 mm (6.5 in.) diam rotating disk that varied in...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005636
EISBN: 978-1-62708-174-0
... composition, dendrite microstructure during solidification, vaporization and loss of alloying elements, and formation of weld bead humping, just to name a few. The heat and mass transfer in fusion welding is truly a broad, multidisciplinary topic ( Ref 1 , Ref 2 , 3 ). In the published literature, there...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001341
EISBN: 978-1-62708-173-3
... 42. Alberry P.J. , Sensitivity Analysis of Half-Bead and Alternative GTAW Techniques , Weld. J. , Nov 1989 , p 442s - 451s 43. Brooks J.A. and Thompson A.W. , Microstructural Development and Solidification Cracking Susceptibility of Austenitic Stainless Steel Welds...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005571
EISBN: 978-1-62708-174-0
... high toughness, a quality of great interest to the engineer, while an acidic flux means excellent slag behavior, a characteristic of interest to the welder attempting to improve weld bead morphology and deposition rate. Table 3 classifies the various coating formulations for SMAW electrodes using the...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005622
EISBN: 978-1-62708-174-0
...-affected zone Increased corrosion resistance Improved bead shape and nugget size Improved austenite content in SAF 2507 Smaller grain size in SAF 2507 In duplex and superduplex alloys, property improvements include: Improved microstructure, corrosion, and mechanical properties Weld...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001431
EISBN: 978-1-62708-173-3
... Alloy Composition on Ferrite Morphology , Weld. J. , Vol 59 ( No. 2 ), 1980 , p 48-s to 58-s 53. Computerized Thermal and Mechanical Testing Machine a Significant Asset in Research, Development and Production , Industrial Heating , Vol 53 ( No. 12 ), Dec 1986 54. Ferguson H...