The surface processing method of CNC machined parts firstly depends on the technical requirements of the machined surface. However, it should be noted that these technical requirements are not necessarily the requirements specified in the part drawing, and sometimes may be higher than the requirements on the part drawing in some respect due to technological reasons.
CNC machining hardware surface processing subdivisions can be divided into: hardware oxidation processing, hardware painting processing, electroplating, surface polishing processing, hardware corrosion processing, etc.;
1. Oxidation processing: When the hardware factory produces finished hardware (mainly aluminum parts), it uses oxidation processing to harden the surface of the hardware product and make it difficult to wear.
2. Spray paint processing: the hardware factory uses spray paint processing when producing large hardware products. The spray paint prevents the hardware from rust, such as daily necessities, electrical enclosures, handicrafts, etc.
3. Electroplating: Electroplating is also the most common processing technology for CNC processing hardware. The surface of the hardware is electroplated through modern technology to ensure that the product will not be moldy and embroidered under long-term use. Common electroplating processing includes: screws, stamping parts , Batteries, car parts, small accessories, etc.,
4. Surface polishing processing: Surface polishing processing is generally used in daily necessities. The surface burr processing is performed on CNC processed hardware products. For example, we produce a comb. The comb is a metal part made by stamping, then the punched comb The corners are very sharp. We need to polish the sharp part of the corner into a smooth face, so that it will not cause harm to the human body during use.