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

Metal stamping parts are widely used in various fields of our life. Metal stamping parts are widely used in hardware fabrication, which means that under room temperature conditions, the molds for steel/non-ferrous metals and other plates are formed into a specified shape by the pressure required for fabrication by the press. What matters should be paid attention to in the design of metal stamping parts? What are the application fields of metal stamping parts?

Design principles 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 variety and specifications of materials, and reducing material consumption as much as possible. Use low-cost materials where possible, and make parts as scrap-free and blank as possible.
• 3. The designed stamping parts must be simple in shape and reasonable in structure, so as to simplify the mold structure and simplify the number of processes, that is, use fewer and simple stamping processes to complete the fabrication of the entire part, reduce the need for other methods to process, and be conducive to stamping operations , to facilitate the organization of mechanized and automated production to improve labor productivity.
• 4. The designed stamping parts, under the condition of normal use, should try to make the dimensional accuracy grade and surface roughness grade requirements lower for auto parts, which is conducive to the exchange of products, reduces waste, and ensures stable product quality.
• 5. The designed stamping parts should be conducive to the use of existing equipment, process equipment and process flow as much as possible to process them, and is conducive to prolonging the service life of the stamping die.

Application fields of metal stamping parts

• 1. Stamping in the automotive industry. Mainly draw. In my country, this part is mainly concentrated in large factories such as automobile factories, tractor factories, and aircraft factories. There are few independent large-scale stamping and drawing factories.
• 2. Stamping of auto parts and other industries. Mainly punching and shearing. Many companies in this sector are classified as standard parts factories, and there are also some independent stamping factories. At present, there are many such small factories near some automobile factories or tractor factories.
• 3. Electric device stamping factory. This type of factory is a new industry, developed with the development of electrical appliances, and the factories in this sector are mainly concentrated in the south.
• 4. Stamping factory for daily necessities. Making some handicrafts, tableware, etc., these factories have also developed greatly in recent years.
• 5. Home appliance parts stamping factory. These factories only appeared after the development of household appliances in my country, and most of them are distributed in household appliance enterprises.
• 6. Special stamping enterprises. For example, the stamping of aviation parts belongs to this type of enterprises, but these process factories are also classified as some large factories.

Metal stamping parts inspection

The hardness test of metal stamping parts adopts Rockwell hardness tester. Small, complex-shaped stampings can be used to test small planes that cannot be tested on ordinary benchtop Rockwell hardness testers.

The fabrication of automobile stamping parts includes blanking, bending, deep drawing, forming, finishing and other processes. The materials for stamping parts are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal sheet and strip materials, such as carbon steel sheets, alloy steel sheets, spring steel sheets, galvanized sheets, tin-plated sheets, stainless steel sheets, copper and copper alloys Plate, aluminum and aluminum alloy plate, etc.

The PHP series of portable surface Rockwell hardness testers are ideal for testing the hardness of these stampings. Alloy stamping parts are commonly used parts in the fields of metal fabrication and machinery manufacturing. Stamping fabrication is a fabrication method that uses a mold to separate or form a metal sheet. Its application range is very broad.

The main purpose of the hardness testing of stamping materials is to determine whether the annealing degree of the purchased metal sheet is suitable for the subsequent stamping fabrication. Different types of stamping fabrication techniques require sheets of different hardness levels. The aluminum alloy plate used for stamping parts can be tested with a Webster hardness tester. When the material thickness is greater than 13mm, a Barcol hardness tester can be used instead, and a barcol hardness tester should be used for pure aluminum plates or low-hardness aluminum alloy plates.

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