What are the application fields and testing requirements of automotive metal stamping parts?

2021-01-19 17:06:02

Metal stamping parts are widely used in all fields of our life. Metal stamping parts are widely used in hardware processing. It refers to the die used for steel / non-ferrous metal plates at room temperature, which is formed to the specified shape by the pressure required for processing by the press. What should be paid attention to in the design of metal stamping parts? What are the application fields of metal stamping parts?

Design principle of metal stamping parts

1. The designed stamping parts must meet the product use and technical performance, and be easy to assemble and repair.

2. The designed stamping parts must be conducive to improving the utilization rate of metal materials, reducing the varieties and specifications of materials, and reducing the consumption of materials as much as possible. If allowed, low-cost materials should be used to make the parts blanking without waste and with less waste as far as possible.

3. The design of stamping parts must be simple in shape and reasonable in structure, so as to simplify the die structure and simplify the number of working procedures, that is, to complete the processing of the whole part with less and simple stamping process, reduce the use of other processing methods, and facilitate the stamping operation, facilitate the organization of mechanized and automatic production, and improve labor productivity.

4. Under the condition that the stamping parts can be used normally, the requirements of dimension accuracy grade and surface roughness level of automobile parts should be lower as far as possible, which is conducive to product exchange, reduce waste products and ensure product quality stability.

5. The design of stamping parts should be conducive to the use of existing equipment, process equipment and process flow to process them, and to extend the service life of the die.

Application field of metal stamping parts

1. Stamping in the automotive industry. Drawing is the main method. In our country, this part is mainly concentrated in automobile factories, tractor factories, aircraft manufacturers and other large factories.

2. Automobile and other industries parts stamping. It is mainly formed by punching and shearing. Many of the enterprises in this sector are owned by standard parts factories, and there are also some independent stamping plants. At present, there are many small factories near some automobile factories or tractor factories.

3. Electrical parts stamping plant. This kind of factory is a new industry, which develops with the development of electrical appliances. The factories in this sector are mainly concentrated in the south.

4. Daily necessities stamping factory. Some handicrafts, tableware and so on, these factories also have the big development in recent years.

5. Home appliance parts stamping plant. These factories were established after the development of household appliances in China, and most of them are distributed in household appliance enterprises.

6. Special stamping enterprises. For example, the stamping of aviation parts belongs to this kind of enterprise, but these process factories are also included in some large factories.

Hardware stamping parts inspection

The hardness of metal stamping parts is tested by Rockwell hardness tester. Small, complex shape stamping parts can be used to test the plane is very small, can not be tested on the ordinary table Rockwell hardness tester.

Automobile stamping parts processing includes blanking, bending, drawing, forming, finishing and other processes. Stamping parts processing materials are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal strip materials, such as carbon steel plate, alloy steel plate, spring steel plate, galvanized plate, tinplate, stainless steel plate, copper and copper alloy plate, aluminum and aluminum alloy plate, etc.

PHP series portable surface Rockwell hardness tester is very suitable for testing the hardness of these stamping parts. Alloy stamping parts are commonly used in the field of metal processing and mechanical manufacturing. Stamping parts processing is a kind of processing method which uses die to separate or form metal strip. Its application range is very wide.

The main purpose of hardness testing of stamping materials is to determine whether the annealing degree of purchased sheet metal is suitable for subsequent stamping processing. Different kinds of stamping parts processing technology require different hardness levels of plates. The aluminum alloy plate used for stamping can be tested by Wechsler hardness tester. When the material thickness is more than 13mm, it can be used by pasteurizer hardness tester. Pure aluminum plate or low hardness aluminum alloy plate should be used by pasteurizer hardness tester.

In the stamping industry, stamping is sometimes called sheet forming, but it is slightly different. The so-called sheet forming refers to the forming method of plastic processing with sheet metal, thin-walled tube and thin profile as raw materials, which is collectively referred to as sheet forming. At this time, the deformation in the direction of thick plate is generally not considered.