| Job Title |
Lathe Operator, Numerical Control |
| Job Description |
Sets Up And Operates Numerically Controlled Horizontal Lathe
To Perform Machining Operations, Such As Turning, Boring,
Facing, And Threading Parts, Such As Castings, Forgings, And Bar
Stock: Reads Process Sheets, Blueprints, And Sketches Of Part To
Determine Machining To Be Done, Dimensional Specifications, Set
Up, And Operating Requirements. Inserts Beginning Point Of Tape
In Reading Head Of Control Unit. Mounts Workpiece Between
Centers, In Chuck, Or To Faceplate, Manually Or Using Hoist.
Selects And Installs Preset Tooling In Tool Posts, Turrets Or
Indexing Heads, And Automatic-tool-change Magazine, In Sequence
Specified On Process Sheet. Depresses Buttons, Toggles, Or Sets
Tape And Starts Machining Operation. Observes Numerical Displays
On Control Panel And Compares With Data On Process Sheet To
Verify Dimensional Adjustments, Feed Rates, And Speeds Of
Machining Cuts. Turns Dials And Switches To Override Tape
Control And Correct Machine Performance, Applying Practical
Knowledge Of Lathe Operation. Inspects First-run Piece And
Spot-checks Succeeding Pieces For Conformance To Specifications,
Using Micrometers And Precision Dial Gauges. Studies Job Packet
And Organizes Materials For Next Run During Automatic
Tape-controlled Cycles To Shorten Changeover Time. May Set Tools
Before Positioning Them In Lathe, Using Precision Gauges And
Instruments. May Set Up And Operate Another Machine Tool During
Tape-controlled Machining Cycles. May Machine Nonmetallic
Materials. May Be Designated By Type Of Lathe Operated As Engine
Lathe Operator, Numerical Control (machine Shop); Turret Lathe
Operator, Numerical Control (machine Shop).
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