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The Hydroforming Process Design of an Automotive Part

ABSTRACT第3页
TABLE OF CONTENTS第4-6页
1 INTRODUCTION AND PROBLEM STATEMENT第6-21页
    1.1 Introduction of hydroforming第6-10页
    1.2 Literature review第10-18页
        1.2.1 LS-DYNA Application第11-12页
        1.2.2 Metal forming第12-13页
        1.2.3 Key technology第13页
        1.2.4 Finite Element Analysis Simulation第13-16页
        1.2.5 Design of process parameters (Adaptive simulation)第16-17页
        1.2.6 Empirical and analytical methods第17页
        1.2.7 Numerical methods第17页
        1.2.8 Adaptive simulation method第17-18页
    1.3 The problem statements and the goal of the thesis第18-20页
    1.4 Thesis organization第20-21页
2 THE BASIC THEORY OF THE PROCESS SIMULATION第21-32页
    2.1 The basic theory of plastic第21-25页
        2.1.1 Anisotropy第21-22页
        2.1.2 Properties of materials- Mechanical tests第22页
        2.1.3 Factors involved in the choice of material第22-25页
    2.2 Determination of wrinkling in tube hydroforming第25-29页
        2.2.1 Prediction of wrinkling第26页
        2.2.2 Wrinkle control第26-27页
        2.2.3 Wrinkle indicator第27-28页
        2.2.4 Bursting contol第28-29页
    2.3 Friction and lubrication in tube hydroforming第29-32页
3 TUBE HYDROFORMING PART AND PROCESS DESIGN第32-41页
    3.1 Classifications of parts produce by tube hydroforming第32-33页
    3.2 Process principle for tube hydroforming第33-34页
    3.3 Calculating internal pressure and wall thickness第34-40页
        3.3.1 Calculating wall thickness第37-38页
        3.3.2 Material thinning due to bending第38-40页
        3.3.3 Calibration第40页
    3.4 Material第40-41页
4 I/P BEAM HYDROFORMING DESIGN AND FEA SIMULATION RESULT第41-53页
    4.1 I/P Beam part and its requirements第41-42页
        4.1.1 Identification of process parameters第41-42页
    4.2 FEA modeling and geometry of the instrumental panel第42-44页
        4.2.1 FEA model and the boundary conditions第43-44页
        4.2.2 Boundary conditions and loads第44页
    4.3 Results and analysis第44-51页
        4.3.1 Die closing第44-45页
        4.3.2 The influences of the loading paths to the formability of tube第45-50页
        4.3.3 Defect analysis for tube hydroforming第50-51页
    4.4 Experiments第51-53页
5 CONCLUSION AND FUTURE WORK第53-55页
    5.1 Conclusion第53-54页
    5.2 Future work第54-55页
REFERENCES第55-59页

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