Sheet Metal Stamping Guide

What is Sheet Metal stamping?

To obtain the stamping parts with required shape and dimension, the press machine and die will apply external force to metal plates, strips, pipes and profiles, which will make them deformed or separated. This kind of process is called sheet metal stamping or stamping. 

The main blanks of sheet metal stamping are the steel plates or strips, which is hot-rolled or cold-rolled. In the world, 60-70% steels are plates, and most of them will be stamped into finished products.

Stamping Manufacturing Process

What’s the Advantages of Sheet Metal Stamping?

Compared with other mechanical processing methods or plastic processing methods, sheet metal stamping processing has many unique advantages in both technical and economic aspects. The main performance is listed as below.

(1)High Efficiency. 

The sheet metal stamping process has high production efficiency, convenient operation, and easy realization of mechanization and automation. This is because sheet metal stamping relies on punching dies and stamping equipment to complete the processing. The number of strokes of ordinary presses can reach dozens of times per minute, and the high-speed presses can reach hundreds or even more than a thousand times per minute. And each stroke process may get one stamped part.

(2) Stable Quality.

The quality of the sheet metal stamping is stable, and the interchangeability is also good. Because the mold guarantees the size and shape accuracy of the stamping parts. Generally,  the surface quality of the stamping parts won’t be damaged, and the life of the mold is also very long.

(3)Wide Application Range

The size range of sheet metal stamping parts is very large, and the shape of the stamping parts can also be very complex. The sheet metal stamping parts range from the small parts like stopwatches, to the big parts like automobile longitudinal beams and covering parts etc. 

The strength and stiffness of sheet metal stamping parts is also very high, due to the cold deformation and hardening effect of the material during stamping.

(4)Low Cost

Sheet metal stamping is a material-saving and energy-saving processing method, and the cost of stamping parts is low. Because there is no chips and scraps generated during sheet metal stamping, which also consumes few material and does not require other heating equipment.

Stamping Process

What’s the limitation of  Sheet Metal Stamping? 

1.Mold Problem

Generally, the sheet metal stamping mold is specialized. Sometimes, several sets of molds are needed to form a complex part, which precision and technology requirement are also high.

Sheet metal stamping parts is the technology-intensive product, which will only show its advantage and obtain good economic benefits when they are produced in large batches.

Sheet Metal Stamping Dies

2.Safety Problem

The main problems or shortcomings of sheet metal stamping is the noise and vibration which generated during the stamping process. Besides, the operator’s safety accidents occur from time to time. However, these problems are not entirely caused by the stamping process or the mold, but the traditional sheet metal stamping equipment and backward manual operations. Of course, these problems will be solved soon along with the development of science and technology, especially with the development of computer technology and the mechatronics technology.

What’s the Application of Sheet Metal Stamping?

Sheet metal stamping processing has a wide range of applications in various fields, due to its superiority. The sheet metal stamping parts can be found in many areas, such as aerospace, aviation, military industry, machinery, agricultural machinery, electronics, communication area, railways, post and telecommunications, transportation, chemicals, medical equipment, household appliances and light industry etc. The sheet metal stamping parts is not only applied in the entire industry, but also has direct contact with everybody. For example, there are many large, medium, and small stamping parts on airplanes, trains, automobiles and tractors. Many car parts are produced by the stamping, like the car body, frame, rim and other parts. According to relevant survey statistics, 80% of bicycles, sewing machines, and watches are stamped parts. And 90% of TV sets, tape recorders, and cameras are stamped parts. There are also some food metal tank shells, steel boilers, enamel bowls and stainless steel tableware. All of these products are stamped by the mold.

Metal Stamping Parts