Sheet metal stamping process and characteristics

Hongfa Shunda is a sheet metal parts manufacturer,there are many technological processes in sheet metal production, such as stamping, bending, laser cutting, welding, etc. Stamping plays an important role in sheet metal production.

Stamping processing is a production technology of product parts with a certain shape, size and performance by means of the power of conventional or special stamping equipment, so that the sheet is directly subjected to deformation force in the mold and deformed. Sheet material, mold and equipment are the three elements of stamping processing. According to the stamping temperature, it is divided into hot stamping and cold stamping. The former is suitable for sheet metal processing with high deformation resistance and poor plasticity; the latter is carried out at room temperature and is a commonly used stamping method for thin sheets. It is one of the main methods of metal plastic working (or pressure working), and also belongs to material forming engineering technology.

What are the main technological processes of stamping?

1. The basic process in stamping processing

There are four basic processes in the manufacturing process of stamping parts: forming, bending, punching and stretching of stamping parts. The blanking process in the stamping process can separate the sheet material; the process flow in which the sheet can produce a certain angle after the stamping process is called bending; the sheet can be produced and processed according to the appearance of the stamping die to make it hollow. The process of making parts, which is convenient for further processing and manufacturing, is called stretching; and the process of local forming is the process of carrying out local plastic deformation according to the stamping process.

2. Separation process and molding process

The material is separated and formed according to its characteristics. Separation process: After the material has undergone the force of stamping, a part of the deformation has been achieved to a large extent, and the material has cracked and then separated. The separation process can also be divided into shearing process, punching process and blanking process. The purpose is to ensure that in the case of stamping, stamping can be carried out with the transformation of the sheet. Forming process: It is a material that deforms under the action of force when the blank is subjected to punching force, and carries out a series of whole processes such as plastic deformation, and then becomes a standard part in the specification and model specification. The forming process of the stamping workshop includes the necking process, the flanging process, the bending process, etc. The purpose is to ensure that the material can be plastically deformed, deformed, updated and bent without being damaged. process, which then becomes stamped parts under specified standards.

The sheet metal stamping process has the following characteristics:

A.Stamping products have good quality, such as smooth surface, high precision, stable size, good interchangeability; light weight, good rigidity, high strength; stamping process can also process workpieces that are difficult to process by other processing methods, such as thin shell parts , Workpieces with flanging, undulations, reinforcing ribs, etc.

B. Stamping products do not need or only need a small amount of cutting, the material utilization rate is high, and the material cost of the workpiece is low.

  • High production efficiency, simple operation, easy to realize mechanization and automation. Equipped with advanced production lines, it can realize fully automatic mechanized operations of feeding, stamping, picking up, and waste removal, with low labor intensity.

D. The molds used in stamping processing are generally complex in structure, with long production cycle and high cost. Therefore, the stamping process is mostly used for batch and mass production, and single-piece and small-batch production are subject to certain restrictions.

The stamping process plays an important role in sheet metal processing, especially in the production of high-volume parts.



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