Lightweight simulation design of integrated die-casting body rear wheel cover and seat crossbeam

This paper is based on the integrated die-casting process for the lightweight development problem of the rear wheel cover assembly and seat beam in certain vehicles. It uses heat-treat-free materials to develop and design the integrated structure of the rear wheel cover and seat beam. The manufacturability of the part is verified by mold flow analysis and a study of the impact of integrated die-casting parts on the stiffness of the entire vehicle. The simulation results show that this scheme can meet the requirements of parts manufacturability and achieve a weight reduction of 2.7 kg for the welding area, compared with the traditional steel structure, and the body stiffness is better. Comfort stiffness increased by about 6%.