In the progressive die, the shape of the stamping part is formed by punching the residual material around the stamping part. The main reason for turning and twisting of stamping parts is the influence of blanking force. During blanking, due to the existence of blanking gap, the material is stretched on one side of the female die and compressed on the side close to the male die.

Automobile sheet metal parts processing center is a comprehensive processing technology guided by laser processing technology, based on advanced machining equipment and integrating automation, intelligence, computer and information management. It is a good combination and development direction of today's steel production industry and manufacturing industry. It is an important subject and development focus faced by the national economy at this stage.

In order to prolong the service life of the workpiece and avoid corrosion and rust during the processing of automobile stamping parts, each manufacturer of automobile stamping parts will generally do corresponding anti-corrosion treatment. Generally, the common anti-corrosion treatment methods are as follows: For asphalt paint coating, preheating the workpiece before painting can improve the adhesion of asphalt paint and accelerate drying.

Generally, we calculate the unfolding size of stamping parts in this way. First, we don't think about bending thinning the material at all. The calculation method is very simple.

The rapid development of automobile, aircraft and other industries, as well as energy factors, are the main driving forces of stamping technology development. In the new century, environmental factors and related legal constraints are increasingly prominent, and the lightweight design and manufacturing of vehicles become an important topic.

Sheet metal and spray painting must have a very professional sheet metal technician and spray painting technician to complete. First of all, sheet metal spray is a collection of two concepts. Sheet metal refers to sheet metal and spray refers to painting. Sheet metal is to repair and correct the deformed parts of car body. This is the premise of paint repair. A good sheet metal technician will rely on years of experience and skilled techniques to restore the deformation of the car body as before, and then spray paint, the effect is good.

Surface treatment of automobile stamping parts refers to the process of forming a covering layer on the surface of the workpiece by some method. The main purpose is to make the workpiece surface beautiful, anti-corrosion effect, surface treatment methods are as follows.

In the field of cars, stamping parts can be seen everywhere. Among the materials used in medium and heavy-duty cars, in addition to the covering parts or body panels used in these cars, some load-bearing parts or supporting parts also use this material. During this period, many people know that the frame, carriage and other large car parts belong to this field.

In many kinds of auto parts, spark plug is usually easy to be ignored, but it is very important in the whole car. Do you have anything to pay attention to when using this kind of parts?

In many kinds of auto parts, spark plug is usually easy to be ignored, but it is very important in the whole car. Do you have anything to pay attention to when using this kind of parts?

In the process of normal driving, there are many variable factors, which seriously affect the performance of the car, and are not conducive to ensure the normal driving of the car. Moreover, under the influence of climate change of terrain and temperature, it will also affect the normal driving of cars, which seriously threatens the safe travel of cars.

The production cost of automobile stamping parts includes fixed cost and variable cost. Fixed cost refers to the cost of equipment and die needed to produce stamping parts, while variable cost refers to material cost and labor cost. The proportion of fixed cost and variable cost is 35% ~ 65% respectively. In the fixed cost, it is mainly fixed investment such as tooling and equipment, which is less decomposed into unit cost; In the variable cost, the proportion of material cost is more than half. Therefore, in order to reduce the production cost of stamping parts, the material cost should be controlled strictly.

The body structure and material of automobile have changed a lot, and the application of load-bearing body has been gradually promoted. Therefore, the requirements of body repair technology are getting higher and higher. The repair process of automobile sheet metal parts not only requires the recovery of the shape of the automobile body, but also ensures that the performance of the repaired body is close to the state before the automobile damage, so as to avoid the occurrence of secondary accidents.

See if the joint is smooth. During the transportation and storage of spare parts, due to vibration and collision, burr, indentation, damage or crack often occur at the joint, which affects the use of parts. Pay attention to the inspection when purchasing.

Automobile sheet metal parts should have good optimization design methods. Therefore, stamping manufacturers take stamping optimization design as an important way to reduce the cost of automobile manufacturing, which can make the car appearance beautiful. The air resistance is reduced, and the number of stamping parts and welding joints can be reduced, and the cost can be effectively reduced.

In the long-term use of stamping dies for automobile stamping parts, wear or loose parts will also lead to product scrap. There are many stamping plants, after the installation of the mold for production, do not carry out the daily inspection and maintenance of the mold, only when the burr is relatively large, just remove the mold and simply grind the knife edge. As everyone knows, the wear of the mold is not only the knife edge wear, but also some mold accessories will wear with the use. After the wear of these accessories, it will have an impact on the accuracy of the whole mold.

According to the actual situation of the site, through the inspection of the tearing position, fracture morphology and extrusion degree of the parts, it is considered that the tearing and skewing behavior of the parts is mainly reflected in the flanging forming process, and the causes of this process are as follows

From the development of domestic auto parts enterprises, the overall level is still at a lower level, many production enterprises, but more scattered, large and small parts manufacturers are all over the country, but the large-scale is very few. Because of the dispersion of manufacturers, the competitive advantage of enterprises is not prominent, the data accumulation is small, and the R & D capacity is also general, which can not meet the large-scale demand of foreign investors.

The machining process of automobile sheet metal parts mainly includes the process of NC programming blanking, bending, pressing riveting, welding, spraying and packaging. The process of sheet metal processing is the combination of theory and practice, and it is the process of combining basic technology knowledge, basic process method and basic process practice of mechanical manufacturing.

If there is a problem in the programming procedure of automobile sheet metal parts, it will cause irreparable loss. Because the function of the special-shaped part of this kind of door plate is to install the door suction, the following processing schemes are usually adopted when mass production of such door panels: cutting machine cutting (three door suction pieces and other blanking) → punching internal holes of punch → angle cutting → folding machine folding test → welding four corners and three door suction pieces. The improvement of the scheme not only saves the cost of raw materials and equipment maintenance, but also greatly reduces the error rate of programming.