Application of Aluminum Alloy to Lighten Auto-body

It has been the core problem for the development of automotive industry to lighten automotive, decrease fuel consumption and reduce pollution of discharge gas. The lightweight materials are very important for lightening auto-body. In the present study, with the new style passenger car as the prototype, when using aluminum alloy to replace 11 typical auto-body parts, the total weight can be reduced 53.1kg and the lightweight effect is 64.5%. According to the crash simulation, compared the deformation of entire car, the crash force to the rigid wall, velocities, accelerations, and energy-absorbing ability of main parts, the results of crashworthiness simulation verified the feasibility of the proposed method.