The difference between stamping parts and castings: the characteristics of thin, uniform, light and strong stamping can produce workpieces with ribs, ribs, undulations or flanging that are difficult to manufacture by other methods to increase their rigidity. Due to the use of precision molds, the precision of the workpiece can reach the micron level, and the repeatability is high, the specifications are consistent, and the holes, bosses, etc . kan worden uitgeplakt .
Koude gestempelde onderdelen worden over het algemeen niet langer verwerkt door te snijden, of vereisen slechts een kleine hoeveelheid snijden . De nauwkeurigheid en oppervlakteconditie van hete stempelende onderdelen is lager dan die van koude stempelende onderdelen, maar het is nog steeds beter dan gietstukken en smeedingen, en de hoeveelheid snijden is klein .
Stampen wordt voornamelijk geclassificeerd volgens proces en kan worden onderverdeeld in twee categorieën: scheidingsproces en vormingsproces .
The separation process is also called punching, and its purpose is to separate the stamping parts from the sheet material along a certain contour line, while ensuring the quality requirements of the separation section. Stamping is an efficient production method. It uses a compound die, especially a multi-station progressive die, which can complete multiple stamping processes on a single press to achieve a complete range from strip unwinding, leveling, punching to forming and Afwerking . Automatische productie .
High production efficiency, good labor conditions, low production cost, generally can produce hundreds of pieces per minute. The purpose of the forming process is to make the sheet plastically deform without breaking the blank to make a workpiece of the desired shape and size. In actual production, multiple processes are often applied to a workpiece. Punching, bending, shearing, drawing, bulging, spinning, and rechttrekken zijn slechts enkele van de belangrijkste stempelsprocessen
