The welding process parameters described in the Welding Procedure Specification (WPS) include: base metal, base metal thickness or tube diameter, electrical parameters (polarity, current, voltage, welding speed, wire filling speed, metal transition, electrode diameter), filling Metals, preheating conditions, post-weld heat treatment, shielding gases, joint types (grooves, fillet welds), welding locations, welding methods, etc.
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