Automotive parts have a lot of knowledge, so the secret of making automobile parts longer life is somewhat familiar, you may also wish to pay attention to it, which is more conducive to maintaining the safety and stability of the car.Automotive parts have a lot of knowledge, so the secret of making automobile parts longer life is somewhat familiar, you may also wish to pay attention to it, which is more conducive to maintaining the safety and stability of the car.

Notices for surface treatment of automobile sheet metal parts. First: It should be noted that the state of the workpiece, all electrochemical treatment must be carried out in the bulk of the workpiece, the assembly feel that it can not be electrochemical treatment. Because in the process of treatment, the solution will be trapped in the gap of the assembly and cause corrosion to the workpiece.

As the name implies, automotive stamping parts are metal stamping parts that constitute automotive parts. In automotive stamping parts, one part becomes automotive parts directly after stamping, and the other part can only become automotive parts after stamping through welding, mechanical processing, or painting process.

Auto sheet metal processing is the technology to process sheet metal. It includes not only the traditional cutting, blanking, bending and forming methods and process parameters, but also the structure and process parameters of various cold stamping dies, working principles and operation methods of various equipment, as well as some new stamping technology and process. More and more sheet metal processing enterprises realize that proper surface treatment can play a very good role in decoration and protection of the product surface, improve the product's "face value", and then improve market competitiveness.

When automobile sheet metal parts are processed in various kinds of custom cabinet chassis, air conditioning sheet metal parts, they need to be surface treated, such as spraying, electroplating, anode, electrophoresis and so on. Because some sheet metal materials do not have the function of anti-rust and anti-corrosion, surface treatment is needed to achieve the effect of anti-rust and anti-corrosion. In addition, surface treatment can also achieve the effect of beautifying the appearance of products.

Spray painting of automobile sheet metal parts is an operation with professional skills. In operation, attention should be paid to the uniformity of the spray paint, the smoothness of the paint surface, and whether the color of the spray paint is consistent with the color of the car body. Therefore, when our car bumps into the need for spray painting, we should first understand that spray painting of automobile sheet metal should pay attention to one. Some things, in order to do services will not be pitted, then what matters need attention?

The application of automobile stamping parts processing technology is more and more extensive. Many parts, including tools, are stamped by machines. Like automobile lampshade, we all know that the shape of lampshade is elliptical, and the parts of this shape are not easy to produce. Using stamping technology, they can be realized very well.

As we all know, there are hundreds of parts on the body of a car, and auto stamping parts account for a large part of the body. Hardware stamping of automotive parts is the production technology of product parts with certain shape, size and performance by means of the power of conventional or special stamping equipment, so that the sheet metal is directly subjected to deformation force and deformation in the die. In order to obtain good stamping products, it is necessary to do a good job of pre-stamping design.

In our life, we often rust our daily necessities for some reasons, but there are the same problems in my sheet metal processing console. Because of the storage problem, when we put the sheet metal processing console in the basement, its humidity will be relatively high. After being damp, we should timely carry out moisture-proof and moisture-absorbing work on it.

Residual medicines and additives are vomited from the inside of precision stamping parts, and the tin layer attached to the plating is easily corroded by these substances. It causes surface oxidation and yellowing of the coating. Inadequate treatment and no drying of the workpiece can also lead to yellowing of the coating. Adhesion of tetravalent tin, excessive additives, zinc impurity pollution in bath (less likely), insufficient thickness of coating, iron impurity pollution (phenomenon is not easy to find in the process of plating) and storage environment. These are the reasons that lead to yellowing of precision metal stamping parts.

Hardware stamping parts are now very common in China, and there are numerous manufacturers of large and small. Hardware stamping parts in the stamping process, if you do not pay attention to the surface is very vulnerable to damage, then how to solve this problem?

Precision stamping die can be classified into three categories as follows: engineering die, also known as "single process die", refers to the die that can only complete one stamping process in one stroke of stamping. After the completion of this project, it is necessary to take the product out of the mould manually or with a manipulator, and then put it into the mould of the next station to continue production, until the latter process of the mould is completed, the whole product is not completed. Mould maintenance is simple, but the production is time-consuming and laborious, which requires more labor and time costs, and the rejection rate of products is high.

Automobile stamping parts are obtained under the action of stamping force, so there will be certain deformation, size, shape and other aspects of the corresponding deformation. For stamping parts, sheet metal, die and equipment are the three indispensable elements in the forming process, which play a vital role in the forming quality of stamping parts.

The testing methods for stamping parts of automotive parts are as follows: Touch test: wipe the surface of the outer covering with clean gauze. Inspectors need to wear touch gloves to touch along the stamping part vertically close to the surface of the stamping part. This inspection method depends on the experience of the inspectors. If necessary, the suspicious area can be polished and verified by oil stone, but this method is an effective and rapid inspection method.

Stamping process can be roughly divided into separation process and forming process (also divided into bending, deep drawing, forming) two categories. Separation process is to separate stamping parts and blanks along a certain contour line in the stamping process, and the quality of the separated section of stamping parts must meet certain requirements. Forming process is to make the stamping blanks plastic deformation without destroying and transform into the required finished product shape, and also to meet the requirements of the size of the common. Poor and other requirements.

In the production process of automobile sheet metal parts, there are certain requirements for stamping technology and stamping die. In high-speed stamping equipment and multi-function stamping die, only "high-speed" and "multi-function" can not meet the production requirements, only to achieve continuous conveying of sheet metal to stamping machine and stamping die, and stamped sheet metal workpiece can be removed from the stamping die and conveyed to the next stamping worker in a very short time.

Metal plastic forming is a process in which metal materials are processed by means of their plastic properties to give them the desired shape. After forming, the structure and properties of metal materials are improved and improved.

The anti-collision beam of automotive parts is by no means the fundamental factor to ensure the safety of the personnel in the car, but it is meaningful to the safety. Its function is reflected in the low-speed collision, while in the high-speed accident, the anti-collision beam of automotive parts is powerless.

It is obvious that the necking of automobile stamping parts is difficult to detect. First of all, the mechanism of material deformation is understood. The process of material stretching and plastic deformation is mainly composed of three stages: uniform elongation stage, local elongation stage and cracking stage.

Rockwell hardness tester is used for hardness testing of metal stamping parts. Small stamping parts with complex shapes can be used to test the plane is very small and can not be tested on ordinary desktop Rockwell hardness tester.