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       CODE: 504.387-010 Buy the DOT:Download/CD-ROM
TITLE(s): HARDNESS INSPECTOR (heat treating)
Tests metal objects to determine their degree of hardness, using hardness testing equipment:
Positions workpiece on anvil of testing machine and turns controls to press steel ball or diamond
point against surface of piece or to allow diamond-pointed hammer fall on surface to be tested.
Measures diameter of indentation caused by steel balls, using microscope, or reads scale on test
equipment that indicates depth of penetration of ball or diamond point, or calibrated height of
hammer rebound. Reads hardness number from calibrated scale on equipment or converts scale reading
to hardness number, using formula or conversion chart. Important variables may be indicated by trade
names of equipment used. May cut cross section of sample part and examine part under microscope to
determine hardness depth.
GOE: 06.03.01 STRENGTH: M GED: R3 M3 L2 SVP: 4 DLU: 77
ONET CROSSWALK: 83005A Production Inspectors, Testers, Graders, Sorters, Samplers, Weighers
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