CNC (Computer numerical Control) machine tool machining is a high-precision and high-efficiency numerical control machining method, which is widely used in various industrial fields. However, after machining with CNC machine tools, post-processing and surface treatment are also required to achieve higher quality requirements and customer needs.

Common surface treatment methods in CNC machining include:

First. Grinding and grinding: Remove burrs, scratches and uneven surfaces.

Second. Polishing: The surface is treated by friction and polishing agent to improve the finish.

Third. Coating and plating: Coating metal or non-metal materials on the surface of parts to provide corrosion resistance, wear resistance and hardness.

Fourth. Spraying: Spray the paint or pigment onto the surface of the part to form a protective film or change the color.

Fifth. Fine grinding: the surface of the workpiece is processed by grinding tools to improve the surface finish.

Sixth. Chemical treatment: change the surface properties of parts through physical and chemical reactions, such as pickling, electroplating and coating.

Seventh. Anodizing: forming an oxide film on the surface of the parts to improve corrosion resistance, hardness and decoration.

Eighth. Sandblasting: clean, deburring and increase roughness by spraying sand or other granular materials at high speed.

Ninth. Electroplating: Deposit metal ions on the surface of parts to form a metal covering layer.

Oxidation coloring: After anodizing, through dyeing agent or electrolytic coloring, etc., to form different colors of oxide film on the surface.

Hard anodizing: to form a harder, more wear-resistant oxide film. These methods can be determined according to specific requirements and material characteristics to improve the quality and appearance of CNC machined parts.

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