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How To Weld Metal Core. Metal-cored wire MCAW can significantly reduce weld cycle times provide high deposition rates and increase travel speeds. Also spray transfer requires less amperage with metal-cored wire.
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An easy rule of thumb for remembering whether to use a push. MCAW is short for Metal Cored Arc Welding. In this process welders create an arc between the base metal and a continuously fed consumable filler metal.
Metal-cored wire MCAW can significantly reduce weld cycle times provide high deposition rates and increase travel speeds.
With flux-cored welding you should always use a drag pull technique in which the tip of the welding gun is being pointed back at the weld pool and dragged away from the completed weld. Metal-cored wire can weld thin materials without burn-through because it lacks a deep finger of penetration. An easy rule of thumb for remembering whether to use a push. When galvanized steel is arc welded the heat of the welding arc vaporizes the zinc coating in the weld area.
