Metal processing is the processing of raw materials such as stainless steel and aluminum materials through lathes, milling machines, etc., and processing into various parts according to drawings or samples. There are three main processes used in metal processing: forging, heat treatment and surface treatment. According to the different forging methods, it is divided into free forging and die forging, manual metal processing is mainly used for die forging. According to whether the forged billet is heated, it can be divided into cold forging and hot forging. Cold forging processing is better than hot forging processing. The heat treatment process has three stages including heating, insulation, and cooling. There are three types of heat treatment, ordinary heat treatment, surface heat treatment and special heat treatment. There are five kinds of surface treatment, electroplating, sandblasting, phosphating, polishing and SATIN. The purpose of electroplating is anti-corrosion and decoration. Phosphorizing has the strongest corrosion resistance and the highest cost. Polishing and SATIN are used for polished and polished metal surfaces.
The above is the hardware processing factory to explain the knowledge of metal processing technology