Analysis of the cause of burnt workpiece by high-speed CBN grinding wheel

When the high-speed CBN grinding wheel grinds the workpiece, we often find that there will be burns on the surface of the workpiece, which is related to the high-speed operation of the CBN grinding wheel. The main types of workpiece burns are line-shaped or discontinuous line-shaped; there are two types of burns with black spots along the grinding direction of the grinding wheel.