Lays out reference points and dimensions on metal or plastic stock or workpieces, such as sheets, plates, tubes, structural shapes, castings, or machine parts, for further processing. Includes shipfitters.
This career is part of the Manufacturing cluster Production pathway.
A person in this career:
- Marks curves, lines, holes, dimensions, and welding symbols onto workpieces, using scribes, soapstones, punches, and hand drills.
- Plans locations and sequences of cutting, drilling, bending, rolling, punching, and welding operations, using compasses, protractors, dividers, and rules.
- Fits and aligns fabricated parts to be welded or assembled.
- Locates center lines and verifies template positions, using measuring instruments such as gauge blocks, height gauges, and dial indicators.
- Plans and develops layouts from blueprints and templates, applying knowledge of trigonometry, design, effects of heat, and properties of metals.
- Lays out and fabricates metal structural parts such as plates, bulkheads, and frames.
- Computes layout dimensions, and determines and marks reference points on metal stock or workpieces for further processing, such as welding and assembly.
- Lifts and positions workpieces in relation to surface plates, manually or with hoists, and using parallel blocks and angle plates.
- Designs and prepares templates of wood, paper, or metal.
- Installs doors, hatches, brackets, and clips.