| Job Title |
Tool-machine Set-up Operator |
| Job Description |
Sets Up And Operates Variety Of Machine Tools, Such As Radial
Drill Press, Lathes, Milling Machines, Shapers, And Grinders, To
Machine Metal Workpieces, Such As Patterns And Machine, Tool, Or
Die Parts, Usually On Custom Basis. Analyzes Specifications And
Determines Tooling, Applying Knowledge Of Metal Properties,
Machining, And Shop Mathematics: Studies Blueprint Or Layout On
Workpiece To Visualize Machining Required, And Plans Sequence Of
Operations. Selects Method Of Holding Workpiece. Lifts Workpiece
Manually Or Using Hoist, And Positions And Secures It To Holding
Device, Such As Machine Table, Chuck, Centers, Or Fixture, Using
Wrenches And Aids, Such As Shims, Parallel Blocks, Planter
Gauges, And Clamps. Verifies Workpiece Position, Using
Instruments, Such As Surface Gauges, Height Gauges, And Dial
Indicator. Selects Feed Rate, Cutting Speed, Depth Of Cut, And
Cutting Tool (bar Tool, Rotary Cutter, Or Abrasive Wheel) For
Each Operation, According To Knowledge Of Metal Properties,
Machining, And Shop Mathematics. Positions And Secures Tool In
Toolholder (chuck, Collet, Or Toolpost). Moves Controls To
Position Tool And Workpiece In Relation To Each Other, And To
Set Feeds, Speeds, And Depth Of Cut. Starts Machine, Turns
Handwheel To Feed Tool In Workpiece Or Vice Versa, And Engages
Automatic Feeding Device. Turns Valve Handle To Start Flow Of
Coolant Against Tool And Workpiece. Observes Operation And
Regulates Tool Position And Action. Verifies Conformance Of
Machined Workpiece To Specifications, Using Instruments, Such As
Micrometers, Gauges, And Gauge Blocks. May Measure, Mark, And
Scribe Workpiece To Lay Out For Machining [lay-out Worker
(machine Shop) 600.281-018]. May Devise Ways Of Clamping
Workpieces And Make Special Jigs And Fixtures As Needed. May
Work On Nonmetallic Materials. May Operate Bench Grinder Or
Cutter Grinding Machine To Sharpen Tools [tool-grinder Operator
(machine Shop) 603.280-038].
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