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multipass welding

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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
... characterization of a 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...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005592
EISBN: 978-1-62708-174-0
... due to Multipass Welds in Piping Systems , J. Press. Vessel Technol. , Vol 101 , 1979 , p 149 – 154 10.1115/1.3454614 53. Rybicki E.F. , Schmueser D.W. , Stonesifer R.B. , Groom J.J. , and Mishler H.W. , A Finite-Element Model for Residual Stresses and Deflections...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001406
EISBN: 978-1-62708-173-3
... Fig. 17 Percent ductile fracture versus test temperature for the submerged arc bend-in-groove welds deposited in HY-80 steel Fig. 8 Tempering bead technique for multipass welding of a butt joint in a Q&T alloy steel. Hardness values found by upper and lower traverses. Distribution...
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
... Special Factors Affecting Transformation Behavior in a Weldment HAZ of a Single-Pass Weld Fusion Zone of a Single-Pass Weld HAZ in Multipass Weldments Fusion Zone in Multipass Weldments Stainless Steels Aluminum Alloys Nickel-Base Superalloys Titanium Alloys Acknowledgments...
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
.... High equipment and set-up cost. 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...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001355
EISBN: 978-1-62708-173-3
... Not specified Single Not specified No requirement Not specified Not specified (a) Gas-shielded electrodes are classified using CO 2 shielding; however, Ar-CO 2 mixtures are commonly used in practice. (b) Multipass electrodes are suitable for single-pass or multipass welding; single-pass...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005613
EISBN: 978-1-62708-174-0
... Fig. 4 Schematic illustration of the microstructural variation in the heat-affected zone of a carbon steel containing 0.15 wt% C. Source: Adapted from Ref 4 Fig. 42 Primary (P) and reaustenitized regions in the weld-metal region of a multipass weld. The reaustenitized region is where...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003615
EISBN: 978-1-62708-182-5
... that solidified from a molten state. Bordering the fusion zone are transition, unmixed and partially-melted zones, and the heat affected zone (HAZ). These zones can be reheated and altered by subsequent weld passes in multipass welding. For alloys with structures that depend strongly on thermal history...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006575
EISBN: 978-1-62708-290-7
..., Part 3: Efficiency and Integration , J. Therm. Stresses , Vol 24 ( No. 4 ), 2001 , p 305 – 334 10.1080/01495730151078117 5. Lindgren L.-E. and Hedblom E. , Modelling of Addition of Filler Material in Large Deformation Analysis of Multipass Welding , Commun. Numer. Meth. Eng...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001475
EISBN: 978-1-62708-173-3
... to single welds as opposed to multipass welds. References 1 , 2 , and 3 present detailed information. Residual Welding Stresses, Reaction Stresses, and Stress Distributions in a Groove Weld Residual Stresses in a Plug Weld Residual Stresses in a Welded Shape and a Column Residual Stresses...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005601
EISBN: 978-1-62708-174-0
...” designator requires Charpy V-notch impact values to meet 20 ft · lbf (27 J) at −40 °F (−40 °C). (c) Gas-shielded electrodes are classified using CO 2 shielding; however, Ar-CO 2 mixtures are commonly used in practice. (d) Multipass electrodes are suitable for single-pass or multipass welding...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005617
EISBN: 978-1-62708-174-0
... in the thickness direction. Source: Welding Research Council Fig. 2 Changes of deflection at the center of the lower edge of a rectangular plate due to heating by a heat source moving along the upper edge and subsequent cooling Fig. 7 Increase of transverse shrinkage during multipass welding...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005643
EISBN: 978-1-62708-174-0
... problems. The relatively small beads usually result in a high percentage of refining in multipass welds, and very good toughness is achievable with some electrodes. Low heat inputs can cause rapid heat-affected zone (HAZ) cooling. Flux coatings are a potential source of hydrogen. Very versatile, low-cost...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001412
EISBN: 978-1-62708-173-3
... solidification cracking because it solidifies as δ-ferrite and has low sulfur and phosphorus contents ( Ref 30 ). After postweld solution treating and aging, the yield strengths and Charpy V-notch (CVN) impact energies of multipass GTA welds in PH13-8 Mo stainless steel are 96 to 100% and 50 to 100...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003622
EISBN: 978-1-62708-182-5
..., or 13 to 150 kJ/in.) in combination with multipass welding, the Strauss test (ASTM A 262, practice E) ( Ref 7 ) failed to uncover any signs of sensitization after bending through 180°. The results of Huey tests (ASTM A 262, practice C) on submerged-arc welds showed that the corrosion rate increased...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001034
EISBN: 978-1-62708-161-0
... , Vol 6 , 9th ed. , Metals Handbook , American Society for Metals , 1983 • Welding Handbook , Vol I and II , 7th ed. , American Welding Society , 1983 Lehigh Restraint Test Varestraint Test Controlled Thermal Severity Test Single-Pass Weldments Multipass Weldments...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001422
EISBN: 978-1-62708-173-3
.... An aggressive abrasive grinding operation is needed to positively remove the oxide. Less-than-ideal inert 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...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005566
EISBN: 978-1-62708-174-0
... of submerged arc weld metal produced in the two-run welding method is also detailed in “Specification for Low-Alloy Steel Electrodes and Fluxes for Submerged Arc Welding,” ANSI/AWS A5.23 ( Ref 3 ). The classification of electrodes is identical to that for multipass welding. The classification of the flux...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001410
EISBN: 978-1-62708-173-3
..., ferrite is darker phase. (a) Cellular primary austenite solidification structure with intercellular eutectic ferrite in AISI 310. (b) Skeletal ferrite, 9-12 FN, in AISI 308. (c) Lathy or lacy ferrite, 13–15 FN in AISI 308 multipass weld. (d) Acicular or Widmanstätten austenite, 14 FN, in upper portion...
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
... on the finished weldment. If the weld face appearance is important, slag removal is recommended prior to deposition of a cosmetic cap pass or deposition of subsequent passes in a multipass weld. Typical components and joints using the SS-7 penetrating compound in the GTAW of stainless steel include...