| Job Title |
Electrical-discharge-machine Set-up Operator |
| Job Description |
Sets Up And Operates One Or More Electrical-discharge Machines
To Shape Metal Workpieces To Specifications, Following Standard
Charts And Manuals, And Applying Knowledge Of
Electrical-discharge Machining Processes And Methods, Electric
Currents And Circuitry, Metal Properties, And Shop Mathematics:
Examines Blueprint Of Product And Plans Operations. Positions
And Secures Workpiece On Machine Table With Clamps, Vise, Or
Fixture. Positions And Secures Electrode In Holder On Surface
Plate, Verifying Concentricity, Alignment, And Depth, Using
Measuring Instruments, Such As Calipers And Dial Indicators.
Mounts Electrode And Holder On Machine Spindle, Using Vernier
Dials On Machine To Verify Alignment Of Electrode And Workpiece.
Positions Gauge Blocks, Dial Indicator, And Spindle Stop On
Machine So That Descending Electrode Will Stop At Specified
Depth When Indicator Feeler Point Touches Gauge Blocks. Turns
Valve To Adjust Flow Of Dielectric Coolant Over Electrode And
Workpiece Or To Immerse Them In Circulating Bath. Turns Controls
To Adjust Machine Setting, Such As Voltage, Current, Frequency,
And Electrode Feed Rate, According To Information On Charts Or
Knowledge Of Electrical Discharge Machining Procedures. Starts
Machine And Observes Beginning Of Operation. May Move Controls
To Rotate Electrode Or Workpiece. May Inspect Completed
Workpiece Visually And With Templates And Other Measuring
Instruments. May Compute Settings From Specifications And
Knowledge Of Machine Capacities. May Give Tool Maker (machine
Shop) 601.280-042 Specifications, Such As Allowances Between
Blueprint Dimensions And Dimensions Of Electrode To Be Made.
Important Variables May Be Indicated By Trade Names Of Machine
Used.
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