Study On The Compensation Of The Springback And The Control Measurement For Automobile Panel

At present, the auto market campaign is being more and more intense. In order to capture the market share and meet the users' need, each automobile factory begins to use the new high strength material to manufacture automobile panel to reduce the automobile body weight and enhances the body secure. Therefore the research on the deformation of the new high strength material is more and more importantly. And how to control the springback of the deformation of auto cover during stamping becomes the key problem, which many overseas car companies and the research institution need to solve. At present, in China automobile Self-development just started, although the research on the dies of automobile covering panel has already lasted a very long time to, it is merely limited in the theory research stage, and it is Long-Term and Huge Task to apply the theory in practice. Besides, the research involves rarely the high strength light material.The high speed development of the CAD technology has provided a foundation platform for this research. At present many overseas car companies have developed own simulation software to simulate the automobile covering panel stamping. This paper unifies the key items of NSFC(The National Natural Science Foundation of China) undertook Institute of Automobile Body and Die Engineering in JiLin university, uses a commercial CAE software—KMAS (King Mesh Analysis System) about Metal Sheet Stamping Forming with Chinese intellectual property, and applies the advanced measuring and testing techniques in the world to test the stamping distortion of the high strength sheet, then compares repeatedly the testing dates with the KMAS simulation results to discover the distortion mechanism, propose the springback compensation method validated through experimental and the simulation. The experiment has proven the accuracy of the...