Coarsely ground surface of a billet with longitudinal crack.
This picture was taken after grinding out a crack found during the flux test. In spite of the uneven surface, the crack is identified by automatic pattern recognition without the use of test equipment and only by suitable lighting.
Recesses in the hollow of a double T-beam.
After rolling, the automatic visual inspection can be carried out under special lighting directly at the roller table. The transport speed of the beam is 1.5m/sec.