Sets up, operates, or tends milling or planing machines to mill, plane, shape, groove, or profile metal or plastic work pieces.
This career is part of the Manufacturing cluster Manufacturing Production pathway.
A person in this career:
- Positions and secures workpieces on machines, using holding devices, measuring instruments, hand tools, and hoists.
- Removes workpieces from machines, and checks to ensure that they conform to specifications, using measuring instruments such as microscopes, gauges, calipers, and micrometers.
- Verifies alignment of workpieces on machines, using measuring instruments such as rules, gauges, or calipers.
- Observes milling or planing machine operation and adjusts controls to ensure conformance with specified tolerances.
- Moves cutters or material manually or by turning handwheels, or engages automatic feeding mechanisms to mill workpieces to specifications.
- Selects cutting speeds, feed rates, and depths of cuts, applying knowledge of metal properties and shop mathematics.
- Studies blueprints, layouts, sketches, or work orders to assess workpiece specifications and to determine tooling instructions, tools and materials needed, and sequences of operations.
- Moves controls to set cutting specifications, to position cutting tools and workpieces in relation to each other, and to start machines.
- Computes dimensions, tolerances, and angles of workpieces or machines, according to specifications and knowledge of metal properties and shop mathematics.
- Replaces worn tools, using hand tools, and sharpens dull tools, using bench grinders.