| Job Title |
Welder, Arc |
| Job Description |
Welds Together Metal Components Of Products, Such As
Pipelines, Automobiles, Boilers, Ships, Aircraft, And Mobile
Homes, As Specified By Layout, Blueprints, Diagram, Work Order,
Welding Procedures, Or Oral Instructions, Using Electric
Arc-welding Equipment: Obtains Specified Electrode And Inserts
Electrode Into Portable Holder Or Threads Consumable Electrode
Wire Through Portable Welding Gun. Connects Cables From Welding
Unit To Obtain Amperage, Voltage, Slope, And Pulse, As Specified
By Welding Engineer (profess. & Kin.) 011.061-026 Or Welding
Technician (profess. & Kin.) 011.261-014. Starts Power Supply
To Produce Electric Current. Strikes (forms) Arc Which Generates
Heat To Melt And Deposit Metal From Electrode To Workpiece And
Join Edges Of Workpiece. Manually Guides Electrode Or Gun Along
Weld Line, Maintaining Length Of Arc And Speed Of Movement To
Form Specified Depth Of Fusion And Bead, As Judged From Color Of
Metal, Sound Of Weld, And Size Of Molten Puddle. Welds In Flat,
Horizontal, Vertical, Or Overhead Positions. Examines Weld For
Bead Size And Other Specifications. May Manually Apply Filler
Rod To Supply Weld Metal. May Clean Or Degrease Weld Joint Or
Workpiece, Using Wire Brush, Portable Grinder, Or Chemical Bath.
May Repair Broken Or Cracked Parts And Fill Holes. May Prepare
Broken Parts For Welding By Grooving Or Scarfing Surfaces. May
Chip Off Excess Weld, Slag, And Spatter, Using Hand Scraper Or
Power Chipper. May Preheat Workpiece, Using Hand Torch Or
Heating Furnace. May Position And Clamp Workpieces Together Or
Assemble Them In Jig Or Fixture. May Tack Assemblies Together.
May Cut Metal Plates Or Structural Shapes [arc Cutter (welding)
816.364-010]. May Be Designated According To Type Of Equipment
Used As Welder, Carbon Arc (welding); Welder, Flux-cored Arc
(welding); Welder, Gas-metal Arc (welding); Welder, Gas-tungsten
Arc (welding); Welder, Hand, Submerged Arc (welding); Welder,
Plasma Arc (welding); Welder, Shielded-metal Arc (welding). May
Operate Other Machine Shop Equipment To Prepare Components For
Welding. May Be Designated According To Product Welded As
Welder, Boilermaker (struct. Metal). Important Variations
Include Types Of Metals Welded, Subprocesses Used, Trade Name Of
Equipment Used, Work Site (in-plant, Job Shop, Construction
Site, Shipyard), Method Of Application (manual, Semiautomatic),
High-production Or Custom, Level Of Ambidexterity Required, Type
Of Joints Welded (seam, Spot, Butt). May Be Required To Pass
Employer Performance Tests Or Standard Tests To Meet
Certification Standards Of Governmental Agencies Or Professional
And Technical Associations.
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