Fitter lays out and fabricates metal structural parts
Lays out and fabricates metal structural parts, such as plates, bulkheads, and frames, and braces them in position within hull of ship for riveting or welding: Lays out position of parts on metal, working from blueprints or templates and using scribe and handtools. Locates and marks reference lines, such as center, buttock, and frame lines. Positions parts in hull of ship, assisted by RIGGER.
Aligns parts in relation to each other, using jacks, turnbuckles, clips, wedges, and mauls. Marks location of holes to be drilled and installs temporary fasteners to hold part in place for welding or riveting. Installs packing, gaskets, liners, and structural accessories and members, such as doors, hatches, brackets, and clips. May prepare molds and templates for fabrication of nonstandard parts. May tack weld clips and brackets in place prior to permanent welding. May roll, bend, flange, cut, and shape plates, beams, and other heavy metal parts, using shop machinery, such as plate rolls, presses, bending brakes, and joggle machines.
Shipfitters are responsible for working in shipyards on the construction of large ships and ship parts. They must be able to read blueprints and diagrams in order to fabricate metal parts, such as hulls, bulkheads, and frames, and they also mark reference lines on parts and lay out positions for future welding and riveting of parts.
Ship fitters must be able to align parts in relation to each other using jacks, turnbuckles, wedges, mauls, and clips. The marking of hole locations for later drilling is also necessary, and ship fitters are expected to install temporary fasteners to hold parts in place before holes are drilled. They must have an in-depth understanding of doors, hatches, brackets, and clips and be able to install them onto ships, and the molding of nonstandard parts for fabrication is also necessary.