Use hand-welding or flame-cutting equipment to weld or join metal components or to fill holes, indentations, or seams of fabricated metal products.

• Arc Cutter
• Lead Burner
• Lead Burner
• Lead-Burner Apprentice
• Liner Assembler
• Thermal Cutter, Hand I
• Thermal Cutter, Hand II
• Torch-Straightener-and Heater
• Welder Apprentice, Arc
• Welder Apprentice, Combination
• Welder Apprentice, Gas
• Welder, Arc
• Welder, Combination
• Welder, Experimental
• Welder, Gas
• Welder, Gun
• Welder, Production Line
• Welder, Tack
• Welder-Assembler
• Welder-Fitter
• Welder-Fitter Apprentice

• Analyze engineering drawings, blueprints, specifications, sketches, work orders, and material safety data sheets to plan layout, assembly, and welding operations.
• Check grooves, angles, or gap allowances, using micrometers, calipers, and precision measuring instruments.
• Chip or grind off excess weld, slag, or spatter, using hand scrapers or power chippers, portable grinders, or arc-cutting equipment.
• Clamp, hold, tack-weld, heat-bend, grind and/or bolt component parts to obtain required configurations and positions for welding.
• Clean or degrease parts, using wire brushes, portable grinders, or chemical baths.
• Connect and turn regulator valves to activate and adjust gas flow and pressure so that desired flames are obtained.
• Cut metal plates and structural shapes to dimensions, and contour and bevel as specified by blueprints, layouts, work orders, and templates, using powered saws, hand shears, or chipping knives.
• Detect faulty operation of equipment and/or defective materials, and notify supervisors.
• Determine required equipment and welding methods, applying knowledge of metallurgy, geometry, and welding techniques.
• Develop templates and models for welding projects, using mathematical calculations based on blueprint information.
• Dismantle metal assemblies or cut scrap metal, using thermal-cutting equipment such as flame-cutting torches or plasma-arc equipment.
• Estimate materials needed for production and manufacturing; maintain required stocks of materials.
• Examine workpieces for defects, and measure workpieces with straightedges or templates to ensure conformance with specifications.
• Fill holes, and increase the size of metal parts.
• Gouge metals using the air-arc gouging process.
• Guide and direct flames or electrodes on or across workpieces to straighten, bend, melt, or build up metal.
• Hammer out bulges or bends in metal workpieces.
• Ignite torches or start power supplies and strike arcs by touching electrodes to metals being welded, completing electrical circuits.
• Join parts such as beams and steel reinforcing rods in buildings, bridges, and highways, bolting and riveting as necessary.
• Lay out, position, align, and secure parts and assemblies prior to assembly, using straightedges, combination squares, calipers, and rulers.
• Mark and/or tag material with proper job number, piece marks, and other identifying marks as required.
• Melt lead bars, wire, or scrap to add lead to joints or to extrude melted scrap into reusable form.
• Mix and apply protective coatings to products.
• Monitor the fitting, burning, and welding processes to avoid overheating of parts or warping, shrinking, distortion, or expansion of material.
• Operate brazing and soldering equipment.
• Operate manual or semi-automatic welding equipment to fuse metal segments, using processes such as gas tungsten arc, gas metal arc, flux-cored arc, plasma arc, shielded metal arc, resistance welding, and submerged arc welding.
• Operate metal shaping, straightening, and bending machines such as brakes and shears.
• Operate safety equipment, and use safe work habits.
• Position and secure workpieces, using hoists, cranes, wire, and banding machines or hand tools.
• Preheat workpieces prior to welding or bending, using torches or heating furnaces.
• Prepare all material surfaces to be welded, ensuring that there is no loose or thick scale, slag, rust, moisture, grease, or other foreign matter.
• Recognize, set up, and operate hand and power tools common to the welding trade, such as shielded metal arc and gas metal arc welding equipment.
• Remove rough spots from workpieces, using portable grinders, hand files, or scrapers.
• Repair products by dismantling, straightening, reshaping, and reassembling parts, using cutting torches, straightening presses, and hand tools.
• Select and install torches, torch tips, filler rods, and flux, according to welding chart specifications, or types and thicknesses of metals.
• Set up and use ladders and scaffolding as necessary to complete work.
• Signal crane operators to move large workpieces.
• Use fire suppression methods in industrial emergencies.
• Weld components in flat, vertical, or overhead positions.
• Weld separately or in combination, using aluminum, stainless steel, cast iron, and other alloys.

• adjust welding equipment
• analyze technical data, designs, or preliminary specifications
• analyze test data
• apply cleaning solvents
• apply protective coating to products
• attach or mark identification onto products or containers
• braze metal parts or components together
• burn (cut), trim, or scarf metal objects
• clean or degrease weld, or parts to be welded or soldered
• climb ladders, scaffolding, or utility or telephone poles
• compute production, construction, or installation specifications
• construct patterns or templates for welding projects
• determine equipment requirements
• erect scaffold
• estimate materials or labor requirements
• examine products or work to verify conformance to specifications
• explain work orders, specifications, or work techniques to workers
• fabricate beams
• fabricate, assemble, or disassemble manufactured products by hand
• file, sand, grind, or polish metal or plastic objects
• identify base metals for welding
• identify properties of metals for repair or fabrication activities
• lay out machining, welding or precision assembly projects
• maintain records, reports, or files
• maintain safe work environment
• maintain welding machines or equipment
• measure, weigh, or count products or materials
• mix paint, ingredients, or chemicals, according to specifications
• monitor production machinery/equipment operation to detect problems
• monitor the quantity of assembly output
• monitor worker performance
• move or fit heavy objects
• operate hoist, winch, or hydraulic boom
• operate metal or plastic fabricating equipment/machinery
• perform detailed welding techniques
• perform safety inspections in industrial, manufacturing or repair setting
• perform welding techniques over lengthy time span
• plan or organize work
• position, clamp or assemble workpiece prior to welding
• preheat metal before welding, brazing, or soldering
• read blueprints
• read production layouts
• read specifications
• read technical drawings
• read work order, instructions, formulas, or processing charts
• recognize characteristics of alloys
• recognize characteristics of metals
• recognize welding symbols
• requisition stock, materials, supplies or equipment
• setup welding equipment
• sharpen metal objects
• signal directions or warnings to coworkers
• solder metal parts or components together
• understand technical operating, service or repair manuals
• use acetylene welding/cutting torch
• use arc welding equipment
• use braze-welding equipment
• use combination welding procedures
• use fire suppression equipment
• use gas welding equipment
• use hand or power tools
• use knowledge of welding filler rod types
• use non-destructive test equipment
• use precision measuring tools or equipment
• use soldering equipment
• use spot or tack welding techniques
• use thermal-cutting equipment
• weld in flat, horizontal, vertical, or overhead position
• weld together metal parts, components, or structures