The fundamental reason this classification exists is to perform skilled welding work in the fabrication and repair of metal equipment. Welders use acetylene and electrical equipment in the fabricating, heating, welding, cutting, and brazing of ferrous and non-ferrous metals in accordance with standard trade practices. Generally, welding assignments are accompanied by blueprints, sketches, and oral instructions indicating the type of material to be used.
Work includes performing mechanical repairs on heavy duty equipment.
Work methods or techniques are left to the discretion of the employee, subject to inspection as to the volume of production and quality of workmanship. The standard tools, materials, motions, and practices of the welding trade. Ferrous and non-ferrous metals in relating to welding and brazing. Occupational hazards and effective safety precautions of the trade. Arc air procedures and equipment.