Challenges of using integrated casting in car manufacturing

The difficulties in the application of integrated casting in automotive manufacturing mainly include the following aspects. Firstly, the implementation cost is, including expensive casting equipment and casting molds, and the scrap rate during production is high. Secondly, the size of the integrated casting parts is usually, and heat treatment is prone to problems such as deformation and surface defects, and the development of materials that do not require heat treatment is a technical challenge. more, casting requires a high-temperature and high-pressure environment, which places extremely high demands on equipment and processes. Once the mold has problems or produces scrap, can lead to a halt in the production line, affecting production efficiency. In addition, the cost of repairing vehicles with integrated casting bodies is high in the event a collision accident. Also, integrated casting currently faces difficulties in performance simulation analysis. The existing analysis software does not take into account the defects of casting itself, there is a difference between the mechanical properties obtained and the actual state. In terms of materials, there is currently no material on the market that is suitable for conditions without heat treatment, and it needs to be customized and developed according to the actual situation of the vehicle model. Moreover, the toughness of integrated casting not as good as that of high-strength steel, which limits its use location and can only be used in locations with relatively low collision requirements at present