AISC_Handbook of Structural Steel Connection Design and Details 241.pdf

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Electrical characteristics (DC+, DC–, AC)Base metal specification (A36, A992, etc.)Minimum preheat and interpass temperatureWelding current (amperage)/wire-feed speedArc voltageTravel speedPosition of weldingPostweld heat treatment (when applicable)Shielding gas type and flow rate (when applicable)Joint design detailsThe welding procedure is somewhat analogous to a cook’s recipe. The procedure outlines thesteps required to make a quality weld under specific conditions.3.6.1Effects of Welding VariablesThe effects of the variables are somewhat dependent on the welding process being employed,but general trends apply to all the processes. It is important to distinguish the differencebetween constant current (CC) and constant voltage (CV) electrical welding systems. Shieldedmetal arc welding is always done with a CC system. Flux-cored welding and gas metal arcwelding generally are performed with CV systems. Submerged arc may utilize either.
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  • Fall '19
  • Arc welding, Gas metal arc welding, Shielding gas, Shielded metal arc welding, Welding power supply

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