The mechanical analysis of metal depends on the precision that the samples are machined. Becuase tensile tests samples are either round or flat geometry, proper machining preparation is an essential step in a quality program of mechanical testing. To assure that the proper dimensions and surface finish is in strict conformance to ASTM E-8 and A-370 procedures, the round sample specimens are machined on the computer numerical control (CNC) turning center. The flat samples specimens are machined on a horizontal machining center.
Routine hardness testing is accomplished with Brinell and Rockwell instruments with ease and accuracy. Brinell and Rockwell hardness measurements are made using a computer controlled optical scanner to provide extremely accurate and repeatable readings. To accommodate micro and macro hardness testing, the Knoop and Vickers instrument will handle those specialized tests with accurate and repeatable results.