| Acknowledgements | 第1-6页 |
| 摘要 | 第6-7页 |
| Abstract | 第7-12页 |
| 1 Introduction | 第12-14页 |
| 2 Research of the sheet metal forming and the defects control | 第14-44页 |
| ·Current research on process parameters for thin sheet stamping | 第14-15页 |
| ·Springback,wrinkles and fractures in sheet metal forming | 第15-16页 |
| ·Experimental procedures to characterize springback | 第16-20页 |
| ·Numerical modelling | 第20-34页 |
| ·Material behaviour | 第21-26页 |
| ·Contact description | 第26-29页 |
| ·Element type | 第29-31页 |
| ·Unloading method | 第31-34页 |
| ·Response surface methodology | 第34-41页 |
| ·Approximate model function | 第35-36页 |
| ·Design of experiments | 第36页 |
| ·Full factorial design | 第36-38页 |
| ·Central composite design | 第38-39页 |
| ·Latin hypercube design | 第39页 |
| ·Audze-Eglais' approach | 第39-40页 |
| ·Conclusion | 第40-41页 |
| ·Recommendations for accurate modelling of springback | 第41-44页 |
| 3 Xuan Kien Vinaxuki automobile Stamping factory production situation | 第44-58页 |
| ·Automobile products | 第45页 |
| ·Equipment,process and technology | 第45-55页 |
| ·Design technology | 第47-48页 |
| ·Mold processing technology | 第48-50页 |
| ·Automatic pressing technology | 第50-52页 |
| ·Process after stamping auto parts | 第52-55页 |
| ·Stamping defects | 第55-58页 |
| 4 Analysis on stamping springback of a U-shaped part by Finite ElementModeling | 第58-78页 |
| ·Finite element model for U-shaped stamping process | 第59-61页 |
| ·Analysis and optimization of forming single target parameters on springback | 第61-65页 |
| ·Blank holder force | 第61-62页 |
| ·Friction coefficient between tools and blank | 第62页 |
| ·Blank thickness | 第62-63页 |
| ·Die radius of curvature | 第63-64页 |
| ·Stamping stroke | 第64-65页 |
| ·Analysis and optimization of the U-shaped forming with multi-parameters and the stamping experiments | 第65-75页 |
| ·Simulation of U-shape stamping springback | 第65-67页 |
| ·Protocol of stamping simulation based on central combination design | 第67-68页 |
| ·Analysis of experiment results and optimization of parameter | 第68-75页 |
| ·Conclusions | 第75-78页 |
| 5 Simulation and test of a Deep drawing automobile covering parts wrinking andfracture | 第78-92页 |
| ·Simulation modeling | 第79-82页 |
| ·Process parameters optimization | 第82-88页 |
| ·Design variables | 第82页 |
| ·Forming quality indices | 第82-84页 |
| ·Response surface model establishment | 第84-87页 |
| ·Multi-objective genetic algorithm optimization | 第87-88页 |
| ·Stamping test verification | 第88-89页 |
| ·Conclusions | 第89-92页 |
| 6 Application Example of Optimization of Parameters in Drawing Process forAutomotive Covering Parts | 第92-106页 |
| ·Optimization of Stamping Reinforcing Plate of Left Side Doorsill | 第92-98页 |
| ·Establishment of Stamping Finite Element Model of Reinforcing Plate of Left Side Doorsill and Simulation Results | 第93-94页 |
| ·Establishment of Response Surface Model | 第94-95页 |
| ·Optimization of Parameters in Stamping Process for Reinforcing Plate of Left Side Doorsill and Its Results | 第95-98页 |
| ·Analysis and Simulation of Process Optimization for Front Anti-collision Beam | 第98-104页 |
| ·Establishment and Optimization of Response Surface Model | 第98-103页 |
| ·Stamping Experiment Verification for Front Anti-collision Beam | 第103-104页 |
| ·Conclusion | 第104-106页 |
| 7 Conclusions and recommendations | 第106-108页 |
| References | 第108-120页 |
| Creative achievements | 第120-121页 |
| The author resume and learning results | 第121-122页 |
| 作者简历及在学研究成果 | 第122-125页 |
| 附件 | 第125页 |
