Die Casting Testing
Part of our finishing and quality assurance process includes testing for any die casting flaws that may have arisen during the process of creating your parts. One of the most important quality assessment measures we use is die casting pressure testing.
Part Finishing and Plating
There are two phases of the finishing process to consider: surface finishing and external finishing (or plating). While you will typically always opt for some kind of surface finishing, plating is often reserved for components that either require some kind of decorative finish or where corrosion resistance is a higher priority.
Surface Finishes
The purpose of the finishing process is to smooth out the surface of your part, remove imperfections and generally make sure the part appears suitable for use. There are many different methods for effectively finishing a part. The finishing options we commonly use at Premier Die Casting include:
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Vibratory Deburring: This process uses vibration to remove imperfections and sharp edges from the surface of your part and prepare it for painting or other finishing processes. It is often the finishing process of choice if an operator will be handling the part pre-plate, as it creates smooth edges, as well as removing oils that may end up on the part from the machining process.
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Shot Blasting: Shot blasting is a finishing process involving blasting particles at high speed across the surface to strip imperfections from it. Some part sellers are fond of the appearance of the sandblast finish, which can come in a variety of textures and can finish your part with a bright metal appearance. Other shot blasting options include wheel blasting and air blasting.
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Robotic Sanding/Polishing: Our automated finishing robots can quickly and efficiently sand, brush and polish your part for a smooth and bright finish.
We also have an automated painting process and can apply a powder coating, which adheres the paint cleanly and efficiently through electrostatic attraction, or we can accurately finish with a wet spray-painting process.
Plating
If you need an external finish, or plating, your options include:
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Chromate: A thin coating with tremendous corrosion resistance.
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E-Nickel: Electroless nickel. We can add a nickel coating with no electrical current required.
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Cadmium: A soft white metal plating that has been popular for aerospace applications.
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Silver: A beautiful plating material with low electrical resistance.
Finishing Classes
For your convenience, there are five different classes your finishing requirements may fall into:
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Utility Grade: These parts will probably not be customer-facing and have no cosmetic requirements. Imperfections on the surface are not a concern.
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Functional Grade: These are parts that may have decorative coatings. Any imperfections can easily be spot-polished or painted over.
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Commercial Grade: Used for structural parts in high-stress areas. Slight surface imperfections with some reasonable means of removal are okay.
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Consumer Grade: High-class decorative coated parts with no noticeable surface imperfections.
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Superior Grade: Surface finish applied to limited areas of casting and are alloy-dependent. Superior grade finishes must have a maximum value in microinches, as specified.
At Premier Die Casting, we take great pride in our quality assurance process and finishing methods. We know that providing our customers with great-looking, high-quality metal parts every single time is what has kept us in business and flourishing for over 70 years. We would love to put our commitment to quality metal workmanship to work for you in your business, whatever your industry.
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-The 19th Guangzhou Die-casting, Foundry
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