What are the surface treatment processes for cnc machining of hardware workpieces

In the hardware machining industry for many years, there are many surface treatment   processes after CNC machining of hardware workpieces to increase the corrosion resistance of parts or other functional requirements. Metal workpieces of different materials also have different surface treatment processes after CNC machining. Lets introduce as below:

After CNC machining of hardware workpieces of general aluminum alloy materials, you can choose wire drawing, anodizing, conductive oxidation, chromate, coloring oxidation, etc., or electroplating on the aluminum alloy surface, such as nickel plating, gold plating, etc., or Spray on the surface of the workpiece, and the surface adhesion can also be carried out according to product requirements.

　　Stainless steel materials generally can be processed by passivation, electrolytic polishing, plasma polishing after CNC processing. At the same time, stainless steel materials can also be electroplated, such as bright nickel plating, chemical nickel plating, and chromium plating.

　　 For parts with high surface requirements after CNC machining of hardware workpieces, the surface can be mechanically polished and then chemically treated to achieve the required surface finish requirements of the workpiece.

For materials such as carbon steel, the surface treatment  is generally nickel electroplating or decorative chromium electroplating, hard chromium electroplating, hard chromium electroplating is usually to increase the surface wear resistance of the parts to achieve the purpose of extending the life of the parts, and there are many functional surface treatment The process is bright heat treatment. After heat treatment, the hardness and corrosion ability of the parts are increased to achieve the purpose of extending the life of the parts.

SWKD has been focusing on CNC machining of hardware workpieces for many years. It involves a wide range of materials. According to the different needs of different materials and customers, the surface treatment methods involved are different. We have mature surface treatment and heat treatment external suppliers, which can meet different requirements.