What factors should be considered in the quality inspection of large stop die forgings:

It is usually learned based on the sampling before the furnace during the melting process, especially for important or suspicious die forgings, and the chemical composition can be verified through chemical analysis. At the same time, the size and shape of matrix forging can be checked. Visual inspection of forging is a more common method. Visual inspection of forging surface is used to detect defects such as excessive surface. The forging surface hides deep defects, which are often observed after heat treatment and cleaning, Forging large arrays requires the use of tracking and special samples when dimensional inspection is required.