A professional who sets up extrusion press to extrude carbon rods or welding rods and coat core (wire) with metallic paste. Respnsibilities include:

• Selects coating (extruding) nozzles, spacers, and wire guides, according to diameter and length of rod.
• Positions, aligns, and bolts abrasive brush, coating nozzles, spacers, marking wheels, and wire guides to machine, using handtools to set up machine to form rods of specified size and length.
• Pulls lever or presses button to set conveyor speed and extruding pressure.
• Starts machine that automatically coats wire to form rod of specified diameter and cuts it to specified length.
• Examines sample piece for splits in coating or burrs on cut ends.
• Measures diameter of rod and concentricity of coating with fixed gauges.
• Turns screws to adjust wire guides, spacers, and brushes to eliminate splits and burrs.
• Varies extrusion pressure or speed of conveyor, or repositions coating nozzle to vary diameter of rod and maintain concentricity of coating around wire.