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gas-metal arc welding

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Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003206
EISBN: 978-1-62708-199-3
... Abstract Arc welding methods can be classified into shielded metal arc welding, flux-cored arc welding, submerged arc welding, gas metal arc welding, gas tungsten arc welding, plasma arc welding, plasma-metal inert gas (MIG) welding, and electroslag and electrogas welding. This article provides...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005195
EISBN: 978-1-62708-187-0
... induction furnaces. The arc furnace is the primary melting method and is used by over 80% of steel foundries ( Ref 1 ). However, arc furnaces are not good holders or efficient at superheating metal, so it is not uncommon to use induction furnaces to superheat steel after the arc melters. Induction furnaces...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001291
EISBN: 978-1-62708-170-2
.... This avoids the difficulties associated with the reactivity of liquid metals. Once the arc is initiated, it self-focuses into a small spot at which the heat and the electron flux are sufficient to vaporize and ionize the cathode material and liberate enough electrons to sustain the discharge. The arc...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005202
EISBN: 978-1-62708-187-0
... arc remelting vacuum induction melted THERE ARE TWO COMMONLY USED remelting processes for metal refinement: electroslag remelting (ESR) and vacuum arc remelting (VAR). In both processes, an electrode is melted as it advances into the melting region of the furnace. As the working face of the...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.9781627081740
EISBN: 978-1-62708-174-0
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.9781627081733
EISBN: 978-1-62708-173-3
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003208
EISBN: 978-1-62708-199-3
... welded; weld quality in most metals is equal to or superior to that produced by gas tungsten arc welding (GTAW). Because the total kinetic energy of the electrons can be concentrated onto a small area on the workpiece, power densities as high as 10 8 W/cm 2 (10 7 W/in. 2 ) can be achieved. That is...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005345
EISBN: 978-1-62708-187-0
... is usually limited to use on thin sections. Generally, any material that can be welded using the oxyfuel (OFW) or arc fusion processes can also be repaired using these processes. The more widely used arc fusion processes include shielded metal arc welding (SMAW), gas metal arc welding (GMAW), gas...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003207
EISBN: 978-1-62708-199-3
... (1 in.) or more have been joined by spot welding, but this requires special equipment and would not ordinarily be economical. Many assemblies of two or more sheet metal stampings that do not require gas-tight or liquid-tight joints can be more economically joined by high-speed RSW than by mechanical...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003817
EISBN: 978-1-62708-183-2
... oxyacetylene welding Coated electrodes, for shielded metal arc welding Tubular wires, for gas metal arc and submerged arc welding Powders, for plasma-transferred arc welding The bare rods and the cores of the coated electrodes are typically made by continuous casting. The powders are normally...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003179
EISBN: 978-1-62708-199-3
... and then removed by the jetlike gas stream issuing from the torch nozzle. Because plasma arc cutting does not depend on a chemical reaction between the gas and the work metal, because the process relies on heat generated from an arc between the torch electrode and the workpiece, and because it...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003205
EISBN: 978-1-62708-199-3
... or recommended. Nevertheless, the information presented can serve as a guide in screening processes for a joining requirement. Table 1 Recommended joining processes for various metal groups Material Thickness (a) Shielded metal arc welding Submerged arc welding Gas metal arc welding...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
...-generation plants (coal, oil, natural gas, and nuclear), pulp and paper mills, waste-incineration sites, numerous industrial chemical processes, diesel engines (power, land vehicle, and maritime), and gas turbine (land-based, marine shipboard, and aircraft). Predicting corrosion of metals and alloys or...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001282
EISBN: 978-1-62708-170-2
... Spray Coatingsā€ in Metals Handbook , 9th ed., Vol 5. In particular, the sections on flame spray, flame spray and fuse, and electric wire-arc spray, as well as several of the figures, were substantially adapted from the earlier edition. Flame spray uses combustible gas as a heat source to melt the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003043
EISBN: 978-1-62708-200-6
... to flow together, such as when metal surfaces melt and flow together during welding. In cohesive bonding, there is an intermingling of molecules between substrates. In thermoplastics and thermoplastic composites (TPCs), the fusion process involves heating the polymer to a viscous state and physically...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005338
EISBN: 978-1-62708-187-0
... gas or a flow-through purge of inert gas is required to protect the metal during welding. To ensure the weld chamber is adequate to produce a quality weld, it is advisable to initially strike an arc on the test plate and observe the color of the weld spot or nugget. If discoloration of the weld spot...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003157
EISBN: 978-1-62708-199-3
... would be high enough to limit arc erosion, metal transfer, and welding or sticking, but it would also be low enough to increase resistance to reignition in switching. (When the melting point is high, contacts continue to heat gas in the contact gap after the current drops to zero, thus facilitating...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001280
EISBN: 978-1-62708-170-2
... some variation of the vapor-deposition process. Deposition, diffusion, and reaction of silicon (and any other elements added in small quantities) with the substrate metal at a high temperature produce the silicide-based coating. Oxide coatings are usually applied by the flame or plasma-arc spraying...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005299
EISBN: 978-1-62708-187-0
...-phosphorus, low- sulfur scrap use refractories such as magnesite and dolomite for furnace lining (basic lining). The compositions of certain steels, such as austenitic manganese steels, require that they be made in a furnace with a basic lining. The direct arc furnace consists essentially of a metal...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004001
EISBN: 978-1-62708-185-6
... the melt via gas atomization or the plasma rotating-electrode process (PREP), developed by Nuclear Metals. Solid-state techniques include reactive sintering of elemental powders and mechanical alloying. Post-synthesis processing is most often applied in the form of powder consolidation (e.g., die...