Points to pay attention to in mass production of stamping parts

Stamping is a metal plastic processing technology. The blanks are mainly plates, strips, pipes and other profiles. It uses a die installed on a press to complete the processing in an instant by applying pressure to process the raw materials into the required The finished or semi-finished product of the shape and size of the part. According to the temperature during stamping, there are two types: cold stamping and hot stamping. Cold stamping is the processing of metal at room temperature. It is generally suitable for blanks with a thickness of less than 4mm. It has high production efficiency, high consistency of workpiece accuracy, good interchangeability, stable quality, high material utilization, and the larger the output, the more costly. It is low, and it can obtain workpieces with complex shapes that are difficult or impossible to be processed by other methods. It is convenient to realize mechanization or automation in mass production, does not require heating, has no scale, and has the advantages of good surface quality, convenient operation and low cost. At the same time, stamping processing has the shortcomings of long die manufacturing cycle, high mold-making technology requirements, high cost, and certain limitations in small batch production. In the mass production of metal stamping parts, the development of high-efficiency, long-life, high-precision dies, such as multi-station continuous dies suitable for complex-shaped parts, automatic special dies suitable for single-variety parts, etc., in small batch production and new products In the trial production, develop simple punching dies such as general-purpose die, combined die and zinc alloy die, polyurethane rubber die, sheet die, steel strip die, etc., in order to shorten the die processing cycle, reduce the cost of mold making, and make the stamping process suitable for small batch production and new product trial production. In order to meet the needs of large-scale, complex, precise and advanced die processing, we will organize the specialized production of die, reduce the manual operation of die-making, adopt various advanced processing, testing equipment and various new die-making technologies to adapt to the processing of large, complex, precise and advanced die, improve the heat treatment of die, and develop New technology of mold surface strengthening, development of new materials for mold making, in order to improve the service life of dies and the quality of stamping parts, vigorously strengthen the typification and standardization of dies, and actively carry out computer-aided design and computer-aided manufacturing of dies to simplify the design of dies And processing, shorten the preparation cycle of stamping production, reduce the cost of mold making, and improve the quality of mold making. Advanced technology is used in the stamping design, such as the configuration of the punching die structure that can control inaccurate positioning, overlap of workpieces, and out-of-dimension during the stamping process. Device. Improve the structure of general-purpose presses, increase rigidity and accuracy, and actively develop high-speed presses, multi-station presses, and numerical control presses to improve production efficiency and meet the needs of mass production. Previous post: Processing characteristics of metal stamping parts