How to select Welding Wires?

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How to select Welding Wires?

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• Many gas-shielded electrodeseach with different
  arc behavior, mechanical properties and intended
  applications are available for almost any
  welding project. Depending on your requirements
  for productivity, quality and cost, you can
  choose from among three different Welding Wires
  for your application
• Solid gas metal arc welding wire (GMAW)
• Composite GMAW wire (metal-cored)
• Gas-shielded flux-cored arc welding wire (FCAW)

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Solid GMAW Wire

• GMAW requires a solid wire electrode. The
  mechanical properties and power of the weld
  deposit depend first on the chemistry of the wire
  and second on the type of shielding gas used.
  Shielding gas is essential to protect the weld
  from the atmosphere. Fabricators frequently
  prefer GMAW because the weld deposit is slagless
  and requires little or no cleanup, which rise
  efficiency.

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Metal-cored Wire

• Metal-cored wires are tubular electrodes
  with metallic ingredient in the core. Like solid
  GMAW wire, metal-cored wire generate a slagless
  weld that requires little or no cleanup. The
  performance characteristics also are identical to
  those of solid GMAW wire. Lately classified as a
  flux-cored wire, metal-cored wire now is grouped
  as a composite GMAW electrode.

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Gas-shielded FCAW Wire

• These tubular electrodes implant fluxing
  agents in the core, as well as deoxidizers, to
  bestow additional protection from the atmosphere.
  The flux ingredients can be engineered to
  increase the mechanical properties of the weld
  deposit. FCAW electrodes are accessible for both
  out-of-position and in-position welding.

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Look for Consistency

• Now that you know all about the Welding Wires,
  it's important to keep in mind that all
  electrodes are not created same. Look for wire
  that offers relavent chemistry, feedability, wire
  diameter, and arc performance. Changes in the
  wire may result in higher operating costs, lower
  productivity and inconsistent welds.
• For example, incompatible wire diameter can cause
  feeding problems and they want repetitive
  procedural adjustments within a spool or during
  spools. Incompatible feedability results in wire
  chatter, decrease gun consumables life, poor
  starting, and wire burnback in the contact tip.
• Consistency is very important to improve
  productivity on the production line.

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