4. Heat treatment incidents and remedies
During the heat treatment of tools, a number of incidents can occur which lead to the part being scrapped, or to inadequate performance in service. These include tapping, excessive deformation, excessive brittleness and variations in the composition of the surface layers of the treated part, especially through decarburization.
4.1 Tapestries
Tapping is cracking that occurs during the quenching process, when the cooling rate is rapid and the steel not very ductile.
An example of the origin of tapers is shown in figure 6...
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Heat treatment incidents and remedies
Analysis of surface treatment incidents
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