| Job Title |
Metal Sprayer, Machined Parts |
| Job Description |
Sets Up And Operates Flame-spray Equipment And Machine Tools
To Build Up Worn Parts, Such As Crankshafts, Motor Shafts,
Clutch Plates, And Piston Rods, And To Salvage Defective
Machined Parts, According To Specifications: Washes Object With
Solvents, Or Heats Object With Torch Or In Furnace To Remove
Impurities, Such As Grease Or Paint. Operates Machines, Such As
Engine Lathes And External Grinders, To Undercut Or Groove
Surface Of Object. Cleans And Roughens Surface Of Object In Sand
Or Shotblast Cabinet [cabinet-abrasive Sandblaster (any
Industry) 503.687-010] Or By Electrobonding Process. Preheats
Object For Spraying, Using Oxyacetylene Torch Or Metalizing Gun.
Sprays Metal Or Other Material On Object By Either Of Following
Methods: (1) Positions And Clamps Metalizing Gun To Engine Lathe
Carriage. Selects Nozzle To Accommodate Size Of Wire To Be
Sprayed And Screws Nozzle Into Place On Metalizing Gun. Inserts
Wire To Be Sprayed Into Rear Of Gun And Through Feed Rollers And
Nozzle. Connects Hoses From Gun To Air Compressor And Tanks Of
Oxygen And Fuel Gas, Such As Acetylene. Turns Knobs To
Synchronize Speed Of Wire Feed, Air Pressure, Flow Of Oxygen And
Fuel Indicated On Dials To Specifications Computed From Data
Charts. Installs Gears In Lathe And Turns Knobs To Synchronize
Rotating Speed Of Chuck And Movement Of Carriage With Rate Of
Spray To Achieve Specified Coating On Workpiece. Ignites Gases
To Melt Wire And Presses Button Or Trigger To Release Compressed
Air Which Atomizes And Sprays Molten Metal Onto Workpiece. (2)
Pours Specified Powder Of Metal Or Other Material, Such As
Ceramics, Into Hopper Mounted On Metalizing Gun. Selects Nozzle
According To Type Of Powder To Be Used And Screws Nozzle Into
Place On Gun. Turns Dials And Valves To Synchronize Feeding Rate
Of Powder And Flow Of Oxygen And Fuel Gas, According To Type Of
Powder Used. Ignites Gases And Presses Button Or Trigger To
Start Flow Of Powder Which Is Atomized And Sprayed Onto
Workpiece. Heats Object With Torch Or In Heat-treating Furnace
To Fuse Coatings, And Cools Object Slowly To Prevent Cracking.
Measures Object, Using Measuring Instruments, Such As
Micrometers, Gauges, And Calipers, To Determine Conformance To
Specifications. Operates Portable Metalizing Gun To Fill Cracks,
Holes, And Apply Coating To Restore Flat Or Irregular Surfaces
Of Machined, Forged, Or Cast Objects To Original Dimensions. May
Operate Machines, Such As Engine Lathes, Turret Lathes, Or
Precision Grinders, To Machine-coat Objects To Original
Specifications. May Spray Protective Coatings Of
Corrosion-resistant Metal Onto Metal Objects. May Tend Portable
Air Compressors, Sandblasting Guns, And Set Up Metalizing Gun On
Lathes In Customers' Plants To Repair Damaged, Worn, Or
Improperly Machined Parts. May Be Designated According To Type
Of Metalizing Equipment Used As Thermospray Operator (any
Industry).
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