The purpose of blasting after heat treatment is to remove any oxidation or scale that has formed in the forging or heat treating process.
During heat treating of forgings, gears, weldments, tooling, castings, and machined components oxidation can form during any of the thermal operations depending on the particular process parameters. Blasting will easily remove this surface oxidation, making any downstream operations like lot number stamping and machining much easier.
ThermTech has several blasting options from a 36 cubic foot tumble blast for processing forgings or castings or a 96” diameter table for cleaning up larger parts. In Special cases where parts may be particularly fragile, ThermTech also has rubber belt tumble blasting or hand blasting capabilities that use a finer blast media. We have also recently installed a large spinner hanger blaster for doing higher volume machined components that are unable to be tumble-blasted.
Please be aware that the process of blasting steel products creates an extremely active surface on the part which greatly enhances the ability for a thin rust layer to form, especially in humid weather conditions. If this condition is not acceptable, please inquire about post-blast rust inhibiting.GET A FREE QUOTE