Upfront Collaboration Between Casting Supplier and End User Can Improve Post-Casting Processing, from Finishing to Painting
by Joe Miller, Chicago White Metal Casting Inc., Bensenville, Illinois
A plastic bumper joining this two-part case conceals all parting lines, thus avoiding any edge polishing.
In the die casting process, metal molds—or dies—are preheated and coated with a die release agent prior to the injection of molten metal that is forced into the die under extreme pressure (usually from 10,000 to 15,000 psi). But once they are ejected from the die, most parts have a journey ahead of them before arriving at the shipping department.
The large majority of die castings require specific coatings and finishes, polishing and/or painting. These processes are necessary to meet cosmetic/decorative appearance requirements, enhance wear resistance and/or provide a protective barrier against corrosion. Read the entire article here, on the MetalCastingDesign.com site.
