Welder, ARC
Hour-based
ONET: 51-4121.00
4
Years
422h
Related instructions
8000h
On-the-job training
Classroom instruction topics
- NCCER Core
- Basic Safety (Construction Site Safety Orientation)
- Introduction to Construction Math
- Introduction to Hand Tools
- Introduction to Power Tools
- Introduction to Construction Drawings
- Introduction to Basic Rigging (Elective)
- Basic Communication Skills
- Basic Employability Skills
- Introduction to Materials Handling
- Welding Safety
- Oxyfuel Cutting
- Plasma Arc Cutting
- Air-Carbon Arc Cutting and Gouging
- Base Metal Preparation
- Weld Quality
- SMAW Equipment and Setup
- SMAW Electrodes
- SMAW Beads and Fillet Welds
- Joint Fit-Up and Alignment
- SMAW Groove Welds with Backing
- SMAW Open-Root Groove Welds Plate
- Welding Symbols
- Reading Welding Detail Drawings
- Physical Characteristics and Mechanical Properties of Metals
- Preheating and Postheating of Metals
- GMAW and FCAW Equipment and Filler Metals
- GMAW Plate
- FCAW Plate
- GTAW Equipment and Filler Metals
- GTAW Plate
- SMAW Open-Root Pipe Welds
- GMAW Pipe
- FCAW Pipe
- GTAW Carbon Steel Pipe
- GTAW Low Alloy and Stainless Steel Pipe
- Grooze Welds
- GMAW Aluminum Plate
- GMAW Aluminum Pipe
- GTAW Aluminum Plate
- Soldering and Brazing
On-the-job training
- Maintain safety.
- Operate safety equipment and use safe work habits.
- Measure dimensions of completed products or workpieces to verify conformance to specifications.
- Examine workpieces for defects and measure workpieces with straightedges or templates to ensure conformance with specifications.
- Check grooves, angles, or gap allowances, using micrometers, calipers, and precision measuring instruments.
- Operate welding equipment.
- Weld components in flat, vertical, or overhead positions.
- 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.
- Select and install torches, torch tips, filler rods, and flux, according to welding chart specifications or types and thicknesses of metals.
- Weld separately or in combination, using aluminum, stainless steel, cast iron, and other alloys
- Ignite torches or start power supplies and strike arcs by touching electrodes to metals being welded, completing electrical circuits.
- Guide and direct flames or electrodes on or across workpieces to straighten, bend, melt, or build up metal.
- Notify others of equipment repair or maintenance needs
- Detect faulty operation of equipment or defective materials and notify supervisors.
- Watch operating equipment to detect malfunctions.
- Select production equipment according to product specifications.
- Select and install torches, torch tips, filler rods, and flux, according to welding chart specifications or types and thicknesses of metals.
- Determine required equipment and welding methods applying knowledge of metallurgy, geometry, and welding techniques.
- Clean workpieces or finished products.
- Prepare all material surfaces to be welded, ensuring that there is no loose or thick scale, slag, rust, moisture, grease, or other foreign matter.
- Determine metal or plastic production methods.
- Determine required equipment and welding methods, applying knowledge of metallurgy, geometry, and welding techniques.
- Mark products, workpieces, or equipment with identifying information.
- Mark or tag material with proper job number, piece marks, and other identifying marks as required.
- Align parts or workpieces to ensure proper assembly.
- Align and clamp workpieces together, using rules, squares, or hand tools, or position items in fixtures, jigs, or vises.
- Melt metal, plastic, or other materials to prepare for production.
- Melt and apply solder along adjoining edges of workpieces to solder joints, using soldering irons, gas torches, or electric-ultrasonic equipment.
- Melt and apply solder to fill holes, indentations, or seams of fabricated metal products, using soldering equipment.
- Solder parts or workpieces.
- Adjust equipment controls to regulate gas flow.
- Connect and turn regulator valves to activate and adjust gas flow and pressure so that desired flames are obtained.
- Monitor equipment operation to ensure that products are not flawed.
- Monitor the fitting, burning, and welding processes to avoid overheating of parts or warping, shrinking, distortion, or expansion of material.
- Mount materials or workpieces onto production equipment.
- Position and secure workpieces, using hoists, cranes, wire, and banding machines or hand tools.
- Operate grinding equipment.
- Grind, cut, buff, or bend edges of workpieces to be joined to ensure snug fit, using power grinders and hand tools.
- Chip or grind off excess weld, slag, or spatter, using hand scrapers or power chippers, portable grinders, or arc-cutting equipment.
- Clean or degrease parts, using wire brushes, portable grinders, or chemical baths.
- Reshape metal workpieces to established specifications.
- Repair products by dismantling, straightening, reshaping, and reassembling parts, using cutting torches, straightening presses, and hand tools.
- Cut industrial materials in preparation for fabrication or processing.
- Ignite fuel to activate heating equipment.
- Ignite torches or start power supplies and strike arcs by touching electrodes to metals being welded, completing electrical circuits.
- Trim excess material from workpieces.
- Chip or grind off excess weld, slag, or spatter, using hand scrapers or power chippers, portable grinders, or arc-cutting equipment.
- Operate firefighting equipment.
- Use fire suppression methods in industrial emergencies.
- Design templates or patterns.
- Develop templates and models for welding projects, using mathematical calculations based on blueprint information.
- Disassemble equipment for maintenance or repair.
- Repair products by dismantling, straightening, reshaping, and reassembling parts, using cutting torches, straightening presses, and hand tools.
- Repair parts or assemblies.
- Heat material or workpieces to prepare for or complete production.
- Preheat workpieces prior to welding or bending, using torches or heating furnaces.
- Clean production equipment.
- Clean or degrease parts, using wire brushes, portable grinders, or chemical baths.
- Assemble temporary equipment or structures.
- Set up and use ladders and scaffolding as necessary to complete work.
- Shape metal workpieces with hammers or other small hand tools.
- Hammer out bulges or bends in metal workpieces.
- Operate metal or plastic forming equipment.
- Operate metal shaping, straightening, and bending machines, such as brakes and shears.
- Review blueprints or other instructions to determine operational methods or sequences.
- Analyze engineering drawings, blueprints, specifications, sketches, work orders, and material safety data sheets to plan layout, assembly, and operations.
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