- Mar 08, 2017 -
Surface roughness caused by grinding and machining, grooves, overlapping and burrs and other defects. Each flaw can make metal surface damage to a certain depth, that the damaged metal surfaces through pickling, Electropolishing or shot blasting (such as sandblasting, abrasive glass beads) and other methods to clean it off. Rough surfaces can become corroded and the birthplace of deposits, cleaning prior to welding seam defects or remove excess welds high cannot be grinding coarse grinding. In the latter case, again with a fine abrasive.