Welding-machine Operator, Arc
Overall rating: (N/A)
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Sets up and operates arc welding machine that welds together
parts of fabricated mteal products, as specified by blueprints,
layouts, welding procedures, and operating charts: Welds flat,
cylindrical, or irregular parts that may be clamped,
tack-welded, or otherwise positioned.
May position weld line
parallel to carriage.
Turns cranks or pushes buttons to align
electrode on welding head over weld joint to weld linear joints,
or adjust length of radial arm to position electrode over weld
joint when welding radial joints.
Clamps cylindrical workpieces
onto turning rolls udner stationary head to weld circular
joints.
Threads specified electrode wire from reel through feed
rolls and welding head.
Turns welding head to set specified
angle of electrode.
May fill hopper with specified flux and
direct nozzle or gravity feed over weld line, or ajdust
shielding gas or gas mixture flow rate. Turns knobs to set
current, voltage, and slope, and synchronize feed of wire and
flux with speed of welding atcion.
May set limit switch which
automatically stops machine at end of weld. Starts machine and
observes metres and gauges, or observes welding action for
compliance with procedures. Visually examines welds for
adherence to specifications. May grind welded surfaces for
penetrant test. Adjusts machine setup to vary size, location,
and penetration of bead.
May install track template to weld
irregularly shaped seams. May make trial run before welding and
record seutp and operating data.
May layout, fit, and tack
workipeces together. May preheat workpiece, using hand torch or
heating funrace. May reweld defcetive joints, using hand-welding
equipment.
May remove surplus slag, flux, and spatter, using
brush, protable grinder, and hand scraper. May operate machine
equipped with two or more heads.
May be designated according to
type of welding machine operated as Welding-Machine Operator,
Electro-Gas (welding); Welding-Machine Operator, Gas-Metal Arc
(welding); Welding-Machine Operator, Gas-Tungsten Arc (welding);
Welding-Machine Operator, Plasma Arc (welding); Welding-Machine
Operator, Sbumerged Arc (welding).
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Welding-Machine Operator, Arc
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