What does it mean to inspect aluminum shell molds in general

To carry out non-destructive data inspection. Aluminum shell mold inspection is through the use of non-contact surface structured light three-dimensional scanner for non-destructive data inspection of the mold, through the scanner to get the three-dimensional data, in the special three-dimensional inspection software will be three-dimensional scanning data and the original cad number of molds for comparison, so as to get the mold.