shipfitters

Lays out, positions, and secures parts and assemblies according to specifications, using straightedge, combination square, calipers, and ruler. Tack-welds or welds components and assemblies, using electric, gas, arc, or other welding equipment. Cuts work piece, using powered saws, hand shears, or chipping knife. Installs or repairs equipment, such as lead pipes, valves, floors, and tank linings.

Observes tests on welded surfaces, such as hydrostatic, x-ray, and dimension tolerance to evaluate weld quality and conformance to specifications. Inspects grooves, angles, or gap allowances, using micrometer, caliper, and precision measuring instruments. Removes rough spots from work piece, using portable grinder, hand file, or scraper. Welds components in flat, vertical, or overhead positions. Heats, forms, and dresses metal parts, using hand tools, torch or arc welding equipment. Ignites torch and adjusts valves, amperage, or voltage to obtain desired flame or arc. Analyzes engineering and welding operations. Develops templates and other work aids to hold and align parts. Determines required equipment and welding method, applying knowledge of metallurgy, geometry and welding techniques.