Aluminum die castings surface finishing has multi- methods on surface of casting parts. Depends on the applications and functions of aluminum die casting part, they can be had some proper surface finishings. Their aim is extending the aluminum die casting part life time and enhancing its durability. So for aluminum die castings surface finishing options, Include of powder coating, paiting, polishing, plated,anodizing and textured and patterned finishing etc. These die casting parts surface finishes are decided by die castings surface finish design and client’s requirements.
Advantages For Aluminum Die Castings Surface Finishing
To enhance life time, durability and appearance aesthetics of die casting components, our expert suggest that die casting surface finishing options is indispensable prcoess, include the below key surface finishes.
Corrosion & Wear Resistance Enhancements
Die casting parts require further surface finishing to enhance corrosion & wear resistance and prolong its life time and better luxious appearance. The metal cast parts maybe plating, painting and powder-coating, all are decide by functions and application environment. Whenever zinc die cast part or aluminum die cast one, required coating option will enhance its corrosion and wear resistance.
Enhanced Component Appearance Aesthetics
Some luxuious appearance metal parts are used as fashion accessories and gifts or decorative trims. These metal parts need glossy and luxurious appearance aesthetics. People improve the metal parts appearance by plating or coating options. So aluminum die castings surface finishing is essential for enhancing component appearance aesthetics.
Prolong The Life Time Of Die Castings
Suface finishing options can prolong die castings life time, because the coating layer isolates continuous oxidation from air, prevents the surface of cast part is corroded from oxygen. So the surface finishing option can make the die casting part remain strong surface and corrosion resistance, aim to prolong the life time of the part.
Minimal Porosity & Defects
Suface finishing options can cover the thin layer on the surface of the cast part evenly, and fill the porosity and defects on the surface of the part, and create a smooth surface. For example, alumimun alloy is porosity metal, the aluminum die casting requires the treatment of impregnation to reach good result for striking metal bonding.
Enhanced Specific Functionalities
Sometimes, the cast part require some metal coating to enhance the electricity conductive property and decoration result. Like some touch points of specific switches, which have a superious electrical conductivity or some accessories and decorative appearance for fashions and bags.
Common Aluminum Die Castings Surface Finishing Options
Aluminum die castings surface finishing can improve appearance. While diversity surface finishes for die castings, which need proper secondary processes. They involve of polishing, power-coated, plated, anodized, painting, textured and patterned finishing etc. As the follow options for die castings surface finishing.
Plating
Surface finishing options for electroplating are diversity, such as chrome, nickel and zincto plated. Aluminum die castings plating is special surface finishing. Firstly The die casting part deburring process is conducted, removing the excess material on the cast parts. maintain smooth surface finish.
Then these treated aluminum parts should be have an impregnation process to improve porosity status on the suface of aluminum die castings. The resin impregnation seal the porosity of the surface of cast part, then zin plated striking is done and create adhensive layer for electroplating material. At last , nickel and chrome plating on them.
Painting or Powder-Coating
Painting or powder coating finish means coating a protective or decorative layer of paint or polymer powder on the surface of the part. As die casting parts , Coating paint and powder on aluminum die casting parts can enhance durability of the castings and decorative appearance.
Anodizing
Anodizing is an electrochemical process, which is very suitable for aluminum die castings. These parts are immersed in a tank filled with an electrolyte solution, though chromic and phosphoric acid are used for specific applications. A current is passed through the acid. This causes oxygen ions to be released from the electrolyte. It allows for coloring, and Sattin and matte effection. Like some automotive components aluminum die casting.
Texturing or Patterning
Some die-cast parts must carry with specific textured or patterned surface on it directly during the casting process. The texturing or patterning on the surface of the part is cast with precision steel tool. Marking the texture and pattern on the surface of the cast part permanently, Especially Custom aluminum die casting components.
Aluminum Die Castings Surface Finishing Process Guide
Our aluminum die castings surface finishing has a general process, follows our strict quality management system, and ensure high quality cast parts in cost-efficiency mass production, we will execute the below steps strictly.
One Phase: Deburring:
These aluminum die castings carry with many burrs and sharp edges on it when they are cast. Firstly our workers can remove the burrs and excess material on the part with manual tools and abrasive machines, Some hidden burs on the cast part, using some special process methods, and removes all residues and excess material on the part.
Two Phase: Optimizing And Enhancing Surface’s Bond
In general condition, our workers clean these deburred aluminum die casting components with water and acid. This gets rid of grease, oil and containments on surface of them so that bing convenient to painting and powder-coated processes. In some specific cases, these aluminum die casting components should be impregnated with the resin and metal zin and seal porosity on the surface of aluminum die casting fully and create an adhensive status for further plating process. This is strike process.
Three Phase: Finish Surface Finishing:
Our worker choose the right surface finishin option to treat the aluminum parts, include of powder coating, paiting, polishing, plated,anodizing and textured and patterned finishing.
Conclusion
Aluminum die castings surface finishing can either extend the life time of these parts or improve parts appearance esthetics. Because advantages of aluminum die casting surface finishing is obvious, which includes Corrosion & Wear Resistance Enhancements, Enhanced Component Appearance Esthetics, Prolong The Life Time Of Die Castings and Enhanced Specific Functionalities. From aluminum die casting surface finishing options, let every one to learn more about this specific type of parts surface treaments steps, and process high quality specific aluminum die casting components.
