It is not necessary to say that the cracking of automobile stamping parts is obvious, that is, the necking is difficult to be detected. First, understand the mechanism of material deformation. The process of material stretching and plastic deformation is mainly composed of three stages: uniform elongation stage, local elongation stage and cracking stage.

When processing all kinds of customized cabinet case, air conditioner sheet metal and other sheet metal parts, automobile sheet metal parts need surface treatment, such as spraying, electroplating, anode, electrophoresis, etc. Because some materials of sheet metal do not have the function of anti rust and anti-corrosion, we need to do surface treatment to achieve the effect of anti rust and anti-corrosion; in addition, the surface treatment can also achieve the effect of beautifying the product appearance.

Any defect on the surface of automobile body stamping parts will affect the appearance of products, so it is not allowed to have defects on the surface of automobile stamping parts. Automobile stamping parts require clear and smooth decorative edges, even transition and symmetrical left and right, and the edges and lines between automobile body stamping parts must be smooth. Stamping parts not only need to meet the requirements of structure and function, but also the requirements of surface quality.

With the continuous reform and development of the industrial industry, the proportion of stamping parts processing by users is more and more, and the processing function of machinery is more cost-effective and standardized. The quality of stamping technology has a direct impact on the subsequent production and input components. The new form of stamping parts processing is more efficient than the traditional processing, and has more advantages in the use of operation functions, especially for parts with uniform quality and high strength.

Automobile sheet metal parts are one of the main parts of automobile. The whole body in white is composed of 400-500 stamping parts. In addition to the role of protection and beauty, sheet metal parts are also the main carrier of automobile gas resistance.

Automobile sheet metal parts die represents the generalization of the basic figure. First, search whether there is a stamping die that is completely common with the generalization and can be rushed out of the generalization with a stamping action. If there is such a die, the stamping die set under "select stamping die" will be neglected, and the searched stamping die will be directly used.

When many users are designing new products or developing products for automobile stamping parts, they usually focus on product development and development at the initial stage, or price, rather than communication and exchange with injection mold manufacturers. In fact, it is very necessary to communicate with injection mold manufacturers in advance after determining the preliminary design scheme of the products. Let us know today What are the precautions for opening the injection mold.

Stamping parts have become a product that can not be ignored in production. In terms of stamping parts production, we should pay attention to that automobile stamping parts show that only when the technical strength of each part is guaranteed, people can give better adjustment in each part. I hope every friend can grasp it better in his life, so that all parts of the production can be coordinated, so that everyone can have a better understanding of stamping production, and know how to use it in the future.

The residual liquid medicine and additives in the precision stamping parts spit out, and the tin layer attached by electroplating is easily corroded by these substances. Cause surface oxidation, resulting in yellow coating.

With the improvement of life quality, metal automobile stamping parts have penetrated into various fields. No matter in industrial production or daily life, many places will use various metal stamping parts. It is closely related to our life and cannot be separated. What process and technical requirements are needed in the production of metal stamping parts in the hardware processing factory to produce hardware products that can meet the production and life of consumers?

Fine metal stamping is mainly classified by process, which can be divided into two categories: separation process and forming process. Parting process can also be called blanking, which aims to separate fine stamping parts from sheet metal along a certain contour line and ensure the quality requirements of parting section together.

Automobile stamping parts are processed by punch. In the whole process, the operation of lathe equipment is very critical. If not properly grasped, it will not only affect the forming quality of stamping parts, but also the equipment may be damaged. The key is that the safety of staff can not be guaranteed. Therefore, the operation requirements of lathe equipment for stamping parts processing will be brought to you soon.

If the installation process of automobile stamping parts is classified, stamping is generally divided into two major processes: forming and separation. Each process has its own inspection standard. The goal of forming is to make the sheet material into the required shape and size without breaking the blank. The purpose of the separation process is to separate the stamping parts from the sheet metal according to the established objectives, and at the same time, it is necessary to ensure that the quality of the separation section meets the standard requirements.

The so-called automobile stamping technology refers to the adaptability of stamping parts to handicrafts, that is, whether the designed stamping parts meet the stamping process requirements in size, size accuracy and benchmark, structural shape, etc. Automobile stamping parts should have good handicrafts and economy. The important marks to weigh their level are the number of stamping processes, the number and size of the car body assembly blocks, the structure of stamping parts and other factors.

If the programming program of automobile sheet metal parts has some problems, it will cause irreparable loss. Because the special-shaped part of this kind of door plate is used to install the door stopper, the following processing scheme is usually adopted in mass production of this kind of door plate: cutting by shearing machine (three door stopper pieces are cut separately) → punching by punch machine → cutting angle → folding by folding machine → welding four corners and three door stopper pieces. The improvement of the scheme not only saves the cost of raw materials and equipment maintenance, but also greatly reduces the programming error rate.

It's said that the staff who make Lexus can touch the subtle differences on the body with their hands. It's very difficult for us to reach similar level without professional training, but you don't need to worry too much. After all, as long as a car reaches the factory standard, it's not easy to have defects visible to consumers.

In the cost of automobile stamping parts, the material cost is more than 60%. Therefore, the economic utilization of materials is of great significance. Layout refers to the arrangement and placement of parts on strips or plates. Unreasonable layout will cause material waste. The index to measure the layout economy is the utilization rate of materials. The utility model can reduce the waste area and the material utilization rate is high.

First, observe whether the upper and lower gaps of the front and rear vertical seams of the door are even. If the front of the top seam of the door is small and the rear is large, and the front of the bottom seam is large and the rear is small, it means that the door sinks due to the bending of the plate at the door hinge or fixed plate, which can be corrected.

Generally speaking, we can judge from two aspects: body and surface covering. Next, let's say one by one, but we need to pay attention to one thing. Here's the method you can use as an ordinary car buyer to go to the 4S shop. Because it doesn't involve special tools, it's not professional, but with them you can generally understand the quality of automobile sheet metal parts.

Bending die is made of high-quality steel through special heat treatment, with high hardness, not easy to wear and bear large pressure, but each set of die has its limit pressure: T / m, so when using the die, the length of the die should be selected correctly, that is, how much pressure should be added per meter, and never exceed the pressure marked by the die.