Lightweight body stamping

In recent years, in order to meet higher safety standards and ride comfort, cars have been equipped with air-conditioning and insulation and sound insulation; in order to meet exhaust emission standards, exhaust gas purification devices have been added. These measures are bound to increase the weight of the vehicle. Therefore, the automobile must be developed in the direction of lightweight, in order to increase market competitiveness, increase vehicle speed and save energy. There are two main measures to reduce the weight of a car: on the one hand, we must improve the body structure, and strive to reduce the weight of the car by adopting a light structure; on the other hand, a large number of lightweight materials are used to achieve weight reduction. Different body structures play a decisive role in the potential ability to reduce body weight. There are currently two main types of body structures, namely, load-bearing body structures and non-bearing body structures. The body of the load-bearing structure is made of sheet metal or composite materials without a frame; the non-load-bearing structure is composed of an independent body and a self-supporting chassis, or an independent body and a load-bearing frame. Cars are widely used in the mass production of load-bearing body structures. In mass production, the steel used in medium-sized cars accounts for 50% to 60% of the weight of the car. About 35 million tons of steel are used for car manufacturing in the world every year, and the body-in-white that accounts for 20% to 25% of the car weight is Larger assembly parts undoubtedly have great potential for weight reduction. At present, the advanced automobile body materials in the automobile industry use high-strength steel plates, plastics, composite materials and alloy materials such as aluminum, titanium and magnesium in addition to traditional ordinary low-carbon steel. Related news: The characteristics of the main materials of stamping parts, the treatment of common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspections