Metal stamping technology and metal stamping parts processing technology

Stamping technology refers to:

A pressure processing method that uses a stamping die to apply pressure to the 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.

Classification of stamping technology:

Due to the outstanding advantages of the stamping process, it 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 be used to manufacture small parts of watches and instruments, as well as large covering parts for automobiles and tractors. Stamping materials can use ferrous metals, non-ferrous metals and some non-metallic materials. In order to meet the requirements of the shape, size, precision, batch size, raw material performance and other aspects of the stamped parts, various stamping processing methods are used.

Stamping technology and development direction:

In the stamping process, the special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) is called stamping die (abbreviated as 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, interchangeable, and have the same ,Characteristics.

(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 material, 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 requires several sets of molds to be processed and formed, and the mold manufacturing has high precision and high technical requirements. It 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.