Do you know the design principle of automobile stamping parts?

2019-12-03 10:27:52

Why are the shapes of automobile stamping parts so strange? The shapes of automobile body stamping parts should meet the shape needs of the body appearance modeling; to meet the needs of mechanical strength, some stiffeners are needed, and the wind resistance should be considered for the outer plate; to meet the requirements of automobile function, hole, stress surface, etc.; to meet the requirements of stamping process and welding process.

There are many stamping parts on the car. The frame, cover, door, seat, brake disc and supporting parts of the car are all stamped by punch, but the car is the product of modern industrial production. As a result of large-scale production, the quality and quantity of its products have been improved, and the price of the products has been reduced, so that ordinary people can afford cars.

Compared with castings and forgings, stamping parts are thin, uniform, light and strong. Stamping can produce workpieces with stiffeners, ribs, undulations or flanging that are difficult to be manufactured by other methods, so as to improve their rigidity. What is the design principle of automobile stamping parts?

1. The designed stamping parts shall be able to use the existing equipment, process equipment and process flow as much as possible to process them, and be conducive to the extension of the service life of the stamping die.

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

3. 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 shall be used to make the parts free of scrap and less scrap blanking.

4. The designed stamping parts must be simple in shape and reasonable in structure, so as to simplify the die structure and the number of processes. That is to say, less and simple stamping processes are used to complete the processing of the whole part, and other methods are used to reduce processing. It is also conducive to stamping operation, organization and Realization of mechanization and automatic production, so as to improve labor productivity.

5. When the designed stamping parts can be used normally, the requirements of dimensional accuracy grade and surface roughness grade shall be lower as far as possible, which is conducive to the exchange of products, reducing waste products and ensuring the stability of product quality.