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weld pool

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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
... Abstract This article focuses on the tests for evaluating the weldability, cracking susceptibility, weld pool shape, fluid flow, and weld penetration of base materials. These tests include different types of self-restraint tests, externally loaded tests for evaluating cracking susceptibility...
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
... Abstract Hybrid laser arc welding (HLAW) is a metal joining process that combines laser beam welding (LBW) and arc welding in the same weld pool. This article provides a discussion on the major process variables for two modes of operation of HLAW, namely, stabilization mode and penetration mode...
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...
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
... the weld pool. This article describes the effect of oxygen that directly reacts with alloying elements to alter their effective role by reducing hardenability, promoting porosity, and producing inclusions. It proposes basicity index for welding as a measure of expected weld metal cleanliness and mechanical...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001338
EISBN: 978-1-62708-173-3
... a comparison of casting and welding solidification. The constitutional supercooling model for describing weld solidification is presented because it qualitatively describes the evolution of different weld microstructures. The article describes the welding rate effect on weld pool shape and microstructure...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001463
EISBN: 978-1-62708-173-3
.... The article explains the factors that affect heat-affected zone (HAZ) cracking. These include hydrogen from the weld pool, microstructures that develop in the HAZ, and stress levels that develop in the weld joint. The article describes the welding practices that can reduce residual stresses. It explains...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005579
EISBN: 978-1-62708-174-0
... plasma and weld pool are discussed. The article reviews the strategies for controlling poor and variable penetration and describes the formation of keyhole and fluid flow in electron beam and laser welds. It also explains the fluid flow in gas metal arc welding and submerged arc welding, presenting its...
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
... Abstract Fluxes are added to the welding environment to improve arc stability, provide a slag, add alloying elements, and refine the weld pool. This article discusses the effect of oxygen, which is an important chemical reagent to control the weld metal composition, microstructure...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005641
EISBN: 978-1-62708-174-0
... properties of laser-welded joints, and weld pool geometry, are discussed. The article also reviews the various injuries and electrical and chemical hazards associated with laser beam welding. chemical hazards depth of focus depth of penetration diameter electrical hazards focal position gap size...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005587
EISBN: 978-1-62708-174-0
..., microstructure evaluation, thermal stress analysis, and fluid flow in the weld pool. energy transfer fluid flow heat transfer microstructure evaluation modeling welds thermal stress analysis THE DESIGN OF A STRUCTURE that achieves its highest performance levels with the least chance of failure...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005621
EISBN: 978-1-62708-174-0
... Abstract Heat and mass transfer in arc welding is normally studied from the standpoint of the weld pool and heat-affected zone. This article examines the heat and mass transfer from the arc to the base metal during the gas metal arc welding process. It also provides information on the selecting...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006490
EISBN: 978-1-62708-207-5
... fluidity of the molten pool. This article schematically illustrates the keyhole instability in LBW and describes the process details of LSW. Representative macrographs of butt, lap, and fillet welds produced using the LBW and LSW processes are presented. The article discusses the laser welding technologies...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005611
EISBN: 978-1-62708-174-0
... on the applications of high-frequency multibeam processes, namely, selective surface treatment, multiple-pool welding, and pre- and post-heat treating. computer-aided design dynamic beam deflection electron beam electron beam direct manufacturing system high-frequency multibeam process multiple-pool...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001334
EISBN: 978-1-62708-173-3
... in a table. The article concludes with a discussion on submerged arc welding (SAW). gas flow gas metal arc welding gas tungsten arc welding submerged arc welding trace element impurities MOLTEN WELD POOLS are dynamic. Liquid in the weld pool in acted on by several strong forces, which can...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001482
EISBN: 978-1-62708-173-3
... Fig. 2 Laser weld pool free surface measured by the reflective topography technique. (a) Visualized picture. (b) Predicted model. (c) Reflective topography image Fig. 3 Schematic of the x-ray radiography system used for measuring weld pool surface velocity Fig. 1 Schematic...
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
... numerical modeling reliability species conservation equation uncertainty reduction vaporization weld pool IN FUSION WELDING, parts are joined together by melting and subsequent solidification. Although this principle is simple, complex transport phenomena take place during fusion welding...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001480
EISBN: 978-1-62708-173-3
... Fig. 1 Finite-element mesh for a weld described in a Eulerian reference frame. Note that filler metal is added. The weld pool, which is not shown, is not needed in this analysis because the temperature is prescribed at the weld-pool boundary. The mesh is finest just in front of the weld pool...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005553
EISBN: 978-1-62708-174-0
... Investigation of GTA Weld Pool Oscillations , Weld. J. , Vol 62 ( No. 2 ), Feb 1983 , p 29s – 35s 30. Madigan R.B. , Renwick R.J. , Farson D.E. , and Richardson R.W. , Computer-Based Control of Full Penetration GTA Welds Using Pool Oscillation Sensing , International...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001335
EISBN: 978-1-62708-173-3
... metal. droplet transfer modes gas metal arc welding heat transfer partitioning heat transfer properties mass transfer total heat transfer HEAT AND MASS TRANSFER in arc welding is normally studied from the standpoint of the weld pool and heat-affected zone (HAZ); however, it is also...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005664
EISBN: 978-1-62708-174-0
... Distribution in Argon-Shielded Welding Arcs , Br. Weld. J. , Vol 1 , 1954 , p 412 – 416 4. Song H.S. and Zhang Y.M. , Measurement and Analysis of Three-Dimensional Specular Gas Tungsten Arc Weld Pool Surface , Weld. J. , Vol 87 ( No. 4 ), 2008 , p 85s – 95s 5. Li P.J...