Analysis on Reason for Contour Plate Quenching Cracks
The reason for contour plate quenching cracks was analyzed by marco-inspection,micro-inspection,hardness testing and other methods.The results show that the workpiece heating temperature is too high,thin wall generates coarse martensite by the overall rapid cooling and thick wall of section size mutation position generates non-martensite,it can provide the conditions for arc-shape crack formation.