Compared with castings and forgings, stamping parts are thin, uniform, light and strong. Stamping can produce workpieces with ribs, ribs, undulations or flanging that are difficult to manufacture by other methods to increase their rigidity. Due to the use of precision molds, the precision of the workpiece can reach the micron level, and the repeatability is high, the specifications are consistent, and the holes, bosses, etc. can be punched out. Cold stamped parts are generally no longer processed by cutting, or only require a small amount of cutting. The accuracy and surface condition of hot stamping parts is lower than that of cold stamping parts, but it is still better than castings and forgings, and the amount of cutting is small.
Stamping is an efficient production method. It uses a compound die, especially a multi-station progressive die, which can complete multiple stamping processes on a single press (single station or multi-station) to achieve unwinding and correction Fully automatic production from flat, punching to forming and finishing. High production efficiency, good labor conditions, low production cost, generally can produce hundreds of pieces per minute. Compared with other methods of mechanical processing and plastic processing, stamping has many unique advantages in terms of technology and economy. The main performance is as follows.
(1) The production efficiency of stamping processing is high, and the operation is convenient, and it is easy to realize mechanization and automation. This is because stamping depends on the die and stamping equipment to complete the processing. The stroke number of ordinary presses can reach dozens of times per minute, and the high-speed pressure can reach hundreds or even thousands of times per minute, and each stamping stroke May get a punching piece.
(2) As the die ensures the size and shape accuracy of the stamping parts during stamping, and generally does not damage the surface quality of the stamping parts, and the life of the die is generally long, the stamping quality is stable and the interchangeability is good. Characteristics.
(3) Stamping can produce parts with a large size range and complex shapes, such as the second hand of a watch, as well as the car longitudinal beam, cover, etc., plus the cold deformation hardening effect of the material during stamping, the strength and The stiffness is higher.
(4) Stamping generally does not generate chips and debris, consumes less material, and does not require other heating equipment, so it is a material-saving, energy-saving processing method, and the cost of stamping parts is low.
Because stamping has such superiority, stamping processing is widely used in various fields of the national economy. For example, there are stamping processes in aerospace, aviation, military, machinery, agricultural machinery, electronics, information, railways, post and telecommunications, transportation, chemicals, medical equipment, household appliances and light industry. Not only is it used throughout the industry, but everyone is in direct contact with stamping products. There are many large, medium and small stamping parts on airplanes, trains, cars and tractors. The body, frame and rim of the car are stamped out. According to relevant survey statistics, 80% of bicycles, sewing machines, and watches are stamping parts; 90% of TVs, tape recorders, and cameras are stamping parts; food metal cans, steel boilers, enamel pots and bowls, and stainless steel tableware All are stamping products using molds; even the computer hardware can not lack stamping parts. 
Post time: May-31-2020