Metal stamping parts are formed by applying external force to sheets, strips, pipes and profiles by means of presses and dies to cause plastic deformation or separation to obtain workpieces (metal stamping parts) of the required shape and size.

   Metal stamping parts are formed by applying external force to sheets, strips, pipes and profiles by means of presses and dies to cause plastic deformation or separation to obtain workpieces (metal stamping parts) of the required shape and size. Stamping and forging are both plastic processing (or pressure processing), collectively called forging. The stamped blanks are mainly hot-rolled and cold-rolled steel sheets and strips. Stamping is mainly classified according to the process, which can be divided into two categories: separation process and forming process.

   Metal stamping parts are mainly formed by stamping metal or non-metal sheet materials with the help of the pressure of the press through the stamping die. It mainly has the following characteristics:

(1) The metal stamping parts are made by punching under the premise of low material consumption. The parts are light in weight and good in rigidity, and after the sheet is plastically deformed, the internal structure of the metal is improved, so that the metal stamping parts are Strength has increased.

(2) The metal stamping parts have high dimensional accuracy, the same size as the mold parts, and have good interchangeability. No further machining is required to meet general assembly and use requirements.

(3) During the stamping process of metal stamping parts, because the surface of the material is not damaged, it has a good surface quality and a smooth and beautiful appearance, which provides convenient conditions for surface painting, electroplating, sterilization and other surface treatments.

Feature application

  Metal stamping parts are the production technology of product parts with certain shape, size and performance by means of the power of conventional or special stamping equipment, so that the sheet metal is directly subjected to deformation force in the mold and deformed. Sheet material, mold and equipment are the three elements of stamping processing. Stamping is a metal cold deformation processing method. Therefore, it is called cold stamping or sheet stamping, or stamping for short. It is one of the main methods of metal plastic working (or press working), and also belongs to material forming engineering technology.

  Of the steel, 50-60% are made of sheets, most of which are finished products that have been punched. Car body, radiator fins, steam drums of boilers, shells of containers, iron core silicon steel sheets of motors and electrical appliances, etc. are all stamped and processed. Instruments, household appliances, office machines, storage utensils and other products, there are also a large number of metal stamping parts. Stamping is an efficient production method, using composite molds, especially multi-station progressive molds, which can complete multiple stamping technical operations on one press to complete the automatic generation of materials. The production speed is fast, the rest time is long, the production cost is low, and the collective can produce hundreds of pieces per minute, which is favored by many processing plants.

Compared with castings and forgings, metal stamping parts have the characteristics of thinness, uniformity, lightness and strength. Stamping can produce workpieces with reinforcing ribs, ribs, coils or flanges that are difficult to manufacture in this skilled diameter to improve their rigidity. Due to the rejection of rough molds, the precision of the workpiece can reach micron level, and the precision is high and the specifications are consistent, and holes, bosses, etc. can be punched out. In actual production, technical tests similar to the stamping process are often used, such as deep drawing performance tests, bulging performance tests, etc. to test the stamping performance of materials to ensure the quality of finished products and high pass rate.

  Stamping equipment usually adopts stagnation press except for thick plate forming with water press. Focusing on modern high-speed multi-station stagnation presses, the equipment is equipped with stagnation such as unwinding, finished product collection, conveying, as well as die storage and quick die change placement, and the use of computerized tube bundles can form passive stamping production with high production rate and high production rate. String. Under the condition that dozens or hundreds of metal stamping parts are produced every minute, the stamping, parts and other processes are completed in a short time, and personal, equipment and quality problems often occur.