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

Assesses engineering data... [+] More

Assesses engineering data and welds experimental parts and assemblies to determine most effective welding processes, using various welding techniques and equipment.

Checks over engineering drawings and specifications to plan welding operations where procedural information is unavailable. Lays out parts and assemblies according to specifications. Creates templates and other work aids to hold and align parts. Determines type of welding to be used, such as metallic arc, inert gas, electrode, and oven treatment, applying knowledge of metals to be joined, contours and angles to be formed, and specified stress tolerances. Welds components in flat, vertical, or overhead positions, and adjusts amperage, voltage, and speed during joining to assure required weld deposit. Inspects grooves, angles, gap allowances, and related aspects of assembly to ensure conformance to specifications, using micrometer, caliper, and related precision measuring instruments. Observes hydrostatic, x-ray, dimension tolerance, and other tests on welded surfaces to evaluate quality of weld and conformance to production requirements. [-] Less

Welds metal components... [+] More

Welds metal components together; fabricates or repairs products according to layouts, blueprints, or work orders, using brazing and variety of arc and gas welding equipment.

Welds metal parts together, using both gas welding or brazing and any combination of arc welding processes. Performs related tasks, such as thermal cutting and grinding. Repairs broken or cracked parts, fills holes, and increases size of metal parts. Positions and clamps together components of fabricated metal products preparatory to welding. May locate and repair cracks in industrial engine cylinder heads, using inspection equipment and gas torch. May be required to pass employer performance tests or standard tests to meet certification standards of governmental agencies or professional and technical associations. [-] Less

Welds metal parts, using gas welding equipment as specified by layout, welding diagram, or work order

positions parts in jigs or fixtures on bench or floor, or clamps parts together along layout marks. Selects torch, torch tip, filler rod and flux,... [+] More

Welds metal parts, using gas welding equipment as specified by layout, welding diagram, or work order

positions parts in jigs or fixtures on bench or floor, or clamps parts together along layout marks. Selects torch, torch tip, filler rod and flux, according to welding chart specifications or type and thickness of metal. Connects regulator valves and hoses to oxygen and fuel gas cylinders, and welding torch. Turns regulator valves to activate flow of gases, lights torch and adjusts gas mixture and pressure, to obtain desired flame, based on knowledge of gas-welding techniques. Holds torch at proper angle to metal and guides along weld joint, applying filler rod to molten area to form weld. Examines weld for bead size and other specifications. Repairs broken or cracked metal objects, fills holes, and builds up metal parts. May apply flux to workpiece instead of filler rod. May preheat workpiece in furnace or with torch. May layout, position and tack weld workpieces. May weld along vertical or overhead weld lines. May scarf or groove weld prior to applying filler metal, using gas welding equipment. May chip or grind off excess weld, slag, or spatter grinder-chipper ii. May clean or degrease parts, using wire brush, portable grinder, or chemical bath. May cut metal plates or structural shapes using gas torch. May be designated according to type of gases used such as welder, acetylene (welding); welder, oxyacetylene (welding); welder, oxyhydrogen (welding). Important variations include type of metal welded, products, subprocesses, trade name of equipment, work. [-] Less

Welds or tack-welds overlapping edges of positioned components to fabricate sheet metal assemblies, such as panels, refrigerator shells, and automobile bodies, using portable spot-welding gun

positions and clamps electrode under overlapping edges of workpiece. Presses electrode against workpiece at specified weld... [+] More

Welds or tack-welds overlapping edges of positioned components to fabricate sheet metal assemblies, such as panels, refrigerator shells, and automobile bodies, using portable spot-welding gun

positions and clamps electrode under overlapping edges of workpiece. Presses electrode against workpiece at specified weld points to complete circuit between electrodes and heat metal to joining temperature. Removes electrode after specified period of time. May adjust equipment for automatic timing of current. May periodically attend group meetings to learn new or modified tasks. May position and clamp workpieces together. May examine welded components to detect defects. [-] Less

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... [+] More

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 011.061-026 or welding technician 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. [-] Less

Welds metal components together to fabricate or repair products, such as machine parts, plant equipment, mobile homes, motors, and generators, according to layouts, blueprints, or work orders, using brazing and variety of arc and gas welding equipment

welds metal parts together,... [+] More

Welds metal components together to fabricate or repair products, such as machine parts, plant equipment, mobile homes, motors, and generators, according to layouts, blueprints, or work orders, using brazing and variety of arc and gas welding equipment

welds metal parts together, using both gas welding welder, gas (welding) or brazing brazer, assembler (welding) and any combination of arc welding processes welder, arc (welding). Performs related tasks, such as thermal cutting and grinding. Repairs broken or cracked parts, fills holes, and increases size of metal parts. Positions and clamps together components of fabricated metal products preparatory to welding. May locate and repair cracks in industrial engine cylinder heads, using inspection equipment and gas torch, and be designated repairer, cylinder heads (welding). May perform repairs only and be designated welder, repair (welding). May be required to pass employer performance tests or standard tests to meet certification standards of governmental agencies or professional and technical associations. [-] Less

Lays out, fits, and welds fabricated, cast, and forged components to assemble structural forms, such as machinery frames, tanks, pressure vessels, furnace shells, and building and bridge parts, according to blueprints and knowledge of welding and metallurgy

selects equipment and plans... [+] More

Lays out, fits, and welds fabricated, cast, and forged components to assemble structural forms, such as machinery frames, tanks, pressure vessels, furnace shells, and building and bridge parts, according to blueprints and knowledge of welding and metallurgy

selects equipment and plans layout, assembly, and welding, applying knowledge of geometry, physical properties of metal machining weld shrinkage, and welding techniques. Lays out, positions, aligns, and fits components together. Bolts, clamps, and tack-welds parts to secure in position for welding welder, tack (welding). Sets up equipment and welds parts, using arc, gas-shielded arc, submerged arc, or gas welding equipment welder, combination (welding). May assemble parts by bolting and riveting. May repair products by dismantling, straightening, reshaping, and reassembling parts, using cutting torch, straightening press, and handtools, and be designated welder, structural repair (welding). May specialize in using one welding process and be designated welder-fitter, arc (welding); welder-fitter, gas (welding). May specialize in fitting and welding components of metal tools, dies, and fixtures and be designated welder, tool and die (welding). [-] Less