Introduction to the material requirements for the manufacturing and processing of die stamping parts

Materials, molds and equipment are the three elements of stamping. Die is the main process equipment for stamping processing. The surface quality, dimensional tolerances, productivity and economic benefits of stamping parts have a great relationship with the mold structure and its reasonable design. The processing of stamping parts requires the processed material to have higher plasticity and toughness, lower yield ratio and aging sensitivity. Generally, carbon steel elongation δ≥16% and yield ratio σs/σb≤70% are required, which is low Alloy high-strength steel δ≥14%, σs/σb≤80%. Otherwise, the stamping and forming performance is poor, and certain measures must be taken in the process, thereby increasing the manufacturing cost of the parts. (Guide: Analysis of Process Technology to Prolong the Service Life of Aluminum Moulds)

According to the combination of stamping process, it is divided into: single-process simple mold, multi-process continuous mold and composite mold. For stamping parts processing, the blanks are mainly plates, strips, pipes and other profiles. The stamping equipment is used to obtain the required part shape and size through the action of the mold. Stamping equipment mainly includes mechanical presses and hydraulic presses. In mass production, high-speed presses or multi-station automatic presses should be used as much as possible; in small batch production, especially in the production of large thick plate stamping parts, hydraulic presses are often used.

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