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What is a stamping die

  Stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, called cold stamping die (commonly known as cold die). Stamping is a pressure processing method in which a material is applied to a material by means of a mold mounted on a press at a room temperature to cause separation or plastic deformation to obtain a desired part.

  Classified according to process properties

  a. The blanking die creates a separate mold along the closed or open contour. Such as blanking die, punching die, cutting die, slit die, trimming die, cutting die and so on.

  b. The bending die causes the blank or other blank of the sheet to be bent and deformed along a straight line (curved line) to obtain a mold of the workpiece of a certain angle and shape.

  c. The drawing die is a mold in which the blank of the sheet is made into an open hollow member, or the hollow member is further changed in shape and size.

  d. The forming die is a mold in which the blank or the semi-finished workpiece is directly copied and formed in the shape of the convex and concave molds, and the material itself only produces a partial plastic deformation. Such as bulging die, shrinking die, flaring die, undulating forming die, flanging die, shaping die and the like.

  e. Riveting die is to use external force to connect or join the participating parts in a certain order and manner to form a whole

  Classified according to the degree of process combination

  a. Single-step mold In the one stroke of the press, only one mold of the stamping process is completed.

  b. The composite mold has only one working position, and in the one stroke of the press, two or more stamping processes are simultaneously completed at the same working position.

  c. Progressive die (also called continuous die) There are two or more stations in the feeding direction of the blank. Two or two passes are successively performed at different stations in one stroke of the press. The mold of the above stamping process.

  d. Transfer mode combines the characteristics of single-process mode and progressive die, and realizes the rapid transfer of products in the mold by using the robot transfer system, which can greatly improve the production efficiency of the product, reduce the production cost of the product, save the material cost, and the quality is stable. reliable.


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