| Job Title |
Engine-lathe Set-up Operator, Tool |
| Job Description |
Sets Up And Operates Engine Lathe To Perform Machining, Such
As Turning, Facing, Boring, And Threading On Rotating Metal
Castings, Forgings, And Bar Stock, To Machine Tool, Die, Or
Machine Parts, Analyzing Specifications And Deciding On Tooling
According To Knowledge Of Metal Properties And Lathe Operation:
Studies Blueprint Or Layout On Workpiece To Visualize Machining
To Be Done, And Plans Sequence Of Operations. Selects Method Of
Holding Workpiece According To Its Size And Shape And Installs
Holding Fixtures, Such As Chuck Jaws, Collets, Arbors, And
Mandrels, To Headstock Or Tailstock, Using Clamps Or Wrenches.
Lifts Workpiece Manually Or With Hoist, And Positions And
Secures It In Holding Fixture Or Between Centers, Using Clamps
And Wrenches, And Verifying Position With Measuring Instruments,
Such As Calipers, Height Gauges, And Dial Indicators. Selects
Feed Rate, Cutting Speed, Depth Of Cut, And Cutting Tool For
Each Operation, According To Knowledge Of Metal Properties And
Shop Mathematics. Positions And Secures Cutting Tool In Tool
Holder On Cross-slide Or Tailstock. Moves Controls To Set
Cutting Speed And Feed Rate And To Position Tool In Relation To
Workpiece. Starts Machine And Turns Handwheels To Feed Tool To
And Along Workpiece, Or Engages Automatic Feed. Turns Valve
Handle And Directs Flow Of Coolant Against Tool And Workpiece.
Verifies Conformance Of Machined Workpiece To Specifications,
Using Measuring Instruments, Such As Micrometer, Calipers, And
Depth Gauges. May Operate Large Engine Lathe To Machine Large
Objects, Such As Ship Propeller Shafts, And Be Designated Lathe
Set-up Operator, Large (machine Shop). May Offset Position Of
Tailstock To Machine Tapered Surfaces. May Mount Gears, Move
Levers, And Engage Threading Dial To Machine Threads, Using
Knowledge Of Thread Cutting. May Machine Teeth On Cutting Tools,
Or Duplicate Contours From Templates Or Models, Using Relieving
Or Tracing Attachments. May Operate Bench Grinder To Sharpen
Tools. May Work On Nonmetallic Materials, Such As Plastics. May
Be Required To Have Specialized Experience With Particular
Materials, Product, Precision Level, Machining Process Or Size,
Type, Or Trade Name Of Machine.
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