The key technology of metal parts processing lies in material selection and surface treatment, which have a crucial impact on the performance and lifespan of metal parts.

In terms of material selection, commonly used materials for hardware parts include stainless steel, aluminum alloy, brass, titanium alloy, and precious metals. Stainless steel is widely used in the manufacture of various hardware parts because of its excellent corrosion resistance and high strength. Aluminum alloys are lightweight and corrosion-resistant, and are often used in occasions where weight reduction is required. Brass still has a place in some high-end mechanical parts because of its good machining properties and electrical conductivity. Titanium alloys are very suitable for high-end hardware parts, especially sports products, due to their high strength, light weight, and no allergic reaction to the skin. Precious metals such as gold and platinum are often used in the manufacture of high-end luxury hardware parts because of their beautiful luxury and excellent oxidation and corrosion resistance.

In terms of surface treatment, common treatment methods for hardware parts include electroplating, anodizing, polishing, sandblasting, etc. Electroplating can provide corrosion resistance to hardware parts and give them a bright or matte appearance. Anodizing can significantly improve the hardness and wear resistance of aluminum alloys, while increasing aesthetics. Polishing can make the surface of hardware parts smoother and improve their aesthetics and gloss. Sandblasting can enhance the texture and aesthetics of hardware parts, while improving the adhesion between the workpiece and the coating.

The key technology of metal parts processing lies in reasonable material selection and scientific surface treatment. In the actual processing process, it is necessary to comprehensively consider various factors such as the use environment, performance requirements and aesthetic requirements of the parts to choose the most suitable material and surface treatment process. Only in this way can we ensure that the hardware parts have excellent performance, long life and beautiful appearance, and meet the diverse needs of various industries and fields.