The metal stamping parts are light in weight, thin in thickness and good in rigidity. Its dimensional tolerance is guaranteed by the mold, so the quality is stable and can be used without mechanical cutting. The metal structure and mechanical properties of cold metal stamping parts are better than the original blank, and the surface is smooth and beautiful. The tolerance grade and surface state of cold metal stamping parts are better than that of hot metal stamping parts.
Large quantities of small and medium-sized parts are usually produced by compound die or multi station continuous die. With the modern high-speed multi position press as the center, equipped with strip material uncoiling, correction, finished product collection, transportation, mold warehouse and rapid die change device, and using computer program control, it can form a high productivity automatic metal stamping production line. By using new die materials and various surface treatment technologies and improving the die structure, high-precision and long-life metal stamping die can be obtained, so as to improve the quality of metal stamping parts and reduce the manufacturing cost of metal stamping parts.
The technology and equipment of metal stamping production are developing continuously. In addition to the traditional use of press and steel mold to manufacture metal stamping parts, various special metal stamping forming processes, such as hydraulic forming, spinning forming, superplastic forming, explosive forming, electro-hydraulic forming and electromagnetic forming, are also developing rapidly, which improves the technical level of metal stamping to a new height. The stamping process of special hardware is especially suitable for the production of various kinds of small and medium-sized parts (even dozens of pieces). For ordinary metal stamping process, simple mold, low melting point alloy mold, group mold and metal stamping flexible manufacturing system can be used to organize the metal stamping processing of various varieties of small and medium-sized parts.
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