Welding-machine Operator, Electron Beam
Overall rating: (N/A)
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Sets up and operates electron beam welding machine to join
metal workpieces according to specifications, applying knowledge
of electron-beam welding: Claens and assembles part, using
solvents, degreasing equipment, and press or oven.
Checks part
for magnetic field, using Guass meter, and places part on
automatic demagnetizer. Selects holding fixture accodring to
size and type of workpiece and installs fixture into welding
position. Selects target block and fastens block to fxiture to
make beam adjustments and prevent damage to equipment.
Turns on
power supply and water cooling and air pumping sytsems.
Closes
chamber door and activates pumping stages to create vacuum.
Reviews specifications or examines sample parts to determine
equipment settings, applying knwoledge of electron-beam welding
and metal characteristics. Ajdusts current setting to heat
filament or cathode and adjusts high voltage setting on anode.
Aligns target block in horizontal and laetral directions, using
hand and foot controls. Rotates polarized filter to darken image
in optical viewing sytsem. Activates beam and adjusts anode
voltage and beam current to regulate detph of weld. Adjusts
current to magnetic lens to focus beam in specific postiions.
Moves workipece under electron beam during welding, using
handtools. Tunrs off beam, opens chamber, and removes target
block. Inspects section of workpiece for depth of weld
penetration, width of joinnig cracks, holes, and inclusions,
using microscope. Performs mechancial strength tests and records
results. Cleans weld chamber and replaecs filament, using
handtools.
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Welding-Machine Operator, Electron Beam
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