Stamping technology and processing technology

Stamping technology refers to a pressure processing method that uses a stamping die to apply pressure to a material on a pressure device to cause plastic deformation or separation, so as to obtain a workpiece of the desired shape and size. Since the stamping process is usually completed at room temperature, and the material being stamped is usually sheet metal; to distinguish it from other metal processing methods, the stamping process is also called cold stamping or sheet metal forming. The classification of stamping technology, due to the outstanding advantages of stamping technology, has been widely used in various fields of the national economy. For example, aerospace, machinery, electronic information, transportation, weapons, household appliances, and light industry industries all apply stamping processing. Stamping can make small parts of watches and instruments, and can also make large covering parts for automobiles and tractors. Stamping materials can use ferrous metals, non-ferrous metals and some non-metallic materials. In the production, in order to meet the requirements of the shape, size, precision, batch and raw material performance of the stamped parts. Using a variety of stamping processing methods.

Stamping technology and development direction. In stamping processing, the special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) is called stamping die (abbreviated as punching die). Punching dies are indispensable process equipment in the realization of stamping processing. It is exactly the same as stamping parts. If there is no die that meets the requirements, qualified stamping parts cannot be produced; without advanced punching dies, advanced stamping forming processes cannot achieve. Compared with mechanical processing and plastic processing methods, stamping processing has many unique advantages in terms of technology and economy, mainly in:

(1) The stamping process has high production efficiency, convenient operation, and easy realization of mechanization and automation. This is because stamping relies on punching dies and stamping equipment to complete the processing. The number of strokes of ordinary presses is dozens of times per minute, and the number of strokes of high-speed presses can reach hundreds or even thousands of times per minute, and each stroke can be obtained. One or more punches.

(2) When stamping, the die ensures the size and shape accuracy of the stamping parts, generally does not damage the surface quality of the stamping material, and the life of the die is generally longer, so the quality of the stamping parts is stable and the interchangeability is good. Features of .

(3) Stamping can process parts with a large size range and more complex shapes, such as Zhongnong’s second hand, as large as automobile longitudinal beams, covering parts, etc.; plus the cold deformation and hardening effect of the material during stamping, The strength and rigidity of stamping parts are high.

(4) Stamping generally does not generate chips and scraps, consumes less materials, and does not require other heating equipment, so it is a material-saving and energy-saving processing method.

(5) The cost of stamping parts is lower. However, the molds used in stamping processing are generally specialized. Sometimes a complex part needs several sets of molds to be processed and formed, and the precision of mold manufacturing is high. It has high technical requirements and is a technology-intensive product. Therefore, only in the case of the largest production batch of stamping parts, the advantages of stamping processing can be fully realized, so as to obtain better economic benefits.