Stamping parts are mainly product parts that are formed by stamping metal or non-metallic sheet metal through a stamping die with the help of the pressure of a press. Due to the use of precision molds, the precision of the workpiece can reach the micron level, and the repeatability is high, and the specifications are consistent, and holes, bosses, etc. can be punched out.
1 Stamping type
Stamping is mainly classified according to the process, which can be divided into two categories: separation process and forming process.
(1) The separation process is also called punching, and its purpose is to separate the stamping parts from the sheet along a certain contour line, while ensuring the quality requirements of the separation section.
(2) The purpose of the forming process is to make the sheet plastically deform without breaking the blank, and make a workpiece of the required shape and size. In actual production, multiple processes are often applied comprehensively to one workpiece.
2 Stamping features
(1) The stamping parts have high dimensional accuracy, are uniform in size with the mold parts, and have good interchangeability. General assembly and use requirements can be met without further machining.
(2) Cold stamping parts generally no longer undergo cutting processing, or only require a small amount of cutting processing. The precision and surface condition of hot stamping parts are lower than those of cold stamping parts, but still better than castings and forgings, and the cutting amount is less. the
(3) During the stamping process, since the surface of the material is not damaged, the stamping parts have good surface quality and a smooth and beautiful appearance, which provides convenient conditions for surface painting, electroplating, phosphating and other surface treatments.
(4) Stamping parts are manufactured by stamping under the premise of low material consumption. The parts are light in weight and good in rigidity. After the sheet metal is plastically deformed, the internal structure of the metal is improved, so that the strength of the stamping parts is improved. improved.
(5) Compared with castings and forgings, stamping parts have the characteristics of thinness, uniformity, lightness and strength. Stamping can produce workpieces with ribs, ribs, undulations or flanges that are difficult to manufacture by other methods to increase their rigidity.