Surface Treatment Processes for CNC Turning

Electroplating Processes

Zinc Plating significantly enhances the corrosion resistance of CNC Turned Parts, making it particularly suitable for agricultural machinery components and architectural hardware used outdoors. The treated surface exhibits a bright finish, and passivation treatment can further enhance protective properties.

Chromium Plating is primarily applied to Casting Mold components and hydraulic piston rods in high-wear environments, achieving a hardness of HV 800–1000. This process extends part lifespan by 2–3 times.

Oxidation Treatment

Anodizing is the preferred process for aluminum alloy parts, forming a 5–25 μm oxide film that provides excellent corrosion resistance and supports multi-color dyeing for aesthetic customization.

Blackening is primarily used for steel components, creating a dense black oxide layer that effectively combines rust prevention with an elegant, professional appearance.

Polishing Processes

Mechanical Polishing achieves surface roughness as low as Ra 0.025 μm, commonly applied to precision CNC turning components such as bearings and seals for superior performance and longevity.

Electrolytic Polishing excels in treating complex-shaped stainless steel parts, effectively removing microscopic surface protrusions to improve surface smoothness and enhance overall corrosion resistance.