| 摘要 | 第1-6页 |
| Abstract | 第6-18页 |
| 1. Introduction | 第18-39页 |
| ·History of incremental forming | 第18页 |
| ·Classes of incremental forming processes | 第18-25页 |
| ·Conventional incremental forming processes | 第18-21页 |
| ·Modern incremental forming processes | 第21-25页 |
| ·Merits of single point incremental forming | 第25-26页 |
| ·Terminology and process parameters of single point incremental forming | 第26页 |
| ·Literature review on single point incremental forming | 第26-32页 |
| ·Equipment and tooling | 第26页 |
| ·Surface quality | 第26-27页 |
| ·Forming forces | 第27页 |
| ·Process accuracy | 第27-28页 |
| ·Forming limits and mechanics | 第28-30页 |
| ·Applications and innovations | 第30-32页 |
| ·Challenges in single point incremental forming | 第32页 |
| ·Problem statement and contributions of this thesis | 第32-33页 |
| ·Methodology | 第33-37页 |
| ·CAD/CAM | 第34页 |
| ·Equipment | 第34-35页 |
| ·Tools and materials | 第35页 |
| ·Lubrication | 第35页 |
| ·Printing and measurement of strain grids | 第35-36页 |
| ·Wall thickness measurement | 第36页 |
| ·Tensile testing and microscopy | 第36-37页 |
| ·Design of experimental plans | 第37页 |
| ·Finite element analysis | 第37页 |
| ·Organization of the dissertation | 第37-39页 |
| 2. Testing formability: A–A novel test to evaluate maximum wall angle | 第39-67页 |
| ·Basic concept of new test | 第39-40页 |
| ·Test geometry and mathematical formulations | 第40-42页 |
| ·Definition of maximum wall angle and the name of test | 第42页 |
| ·Evaluating maximum wall angle employing newly proposed test | 第42-48页 |
| ·Test conditions | 第42-44页 |
| ·Test results | 第44-48页 |
| ·The effect of variation in the geometrical parameters of test geometry upon the VWACF test results | 第48-59页 |
| ·The effect of variation in the horizontal curvature radius upon the test results | 第48-52页 |
| ·The effect of variation in the initial wall angle upon the test results | 第52-57页 |
| ·The effect of variation in the generatrix radius upon the test results | 第57-59页 |
| ·The effect of variation in the generatrix type upon VWACF test results | 第59-63页 |
| ·Comparison between VWACF test and existing test | 第63-65页 |
| ·Summary and conclusions | 第65-67页 |
| 3. Testing formability: B–Effect of change in the shape of test geometry upon the test results | 第67-90页 |
| ·Testing formability with changed test geometry | 第67-71页 |
| ·The shape and geometrical parameters of the new test geometry | 第67-68页 |
| ·Test conditions | 第68页 |
| ·Test results | 第68-71页 |
| ·Comparison between VWAPF and VWACF tests–Effect of sheet formability | 第71-73页 |
| ·The effect of variation in the geometrical parameters of the test geometry upon the VWAPF test results | 第73-82页 |
| ·The effect of variation in the half-side length | 第74-78页 |
| ·The effect of variation in the initial wall angle | 第78-82页 |
| ·Sheet stiffness and formability | 第82-87页 |
| ·Testing sheet stiffness | 第83-84页 |
| ·Correlation of blank stiffness with half-side length of pyramid | 第84-85页 |
| ·The effect of sheet stiffness upon formability | 第85-87页 |
| ·Finite element analysis | 第87页 |
| ·Standardization of test specimen | 第87-88页 |
| ·Summary and conclusions | 第88-90页 |
| 4. Testing formability: C–New methods to determine forming limit curves | 第90-98页 |
| ·Determination of FLC | 第90-93页 |
| ·Description of new approaches | 第91-93页 |
| ·Definition of FLC | 第93页 |
| ·Comparison between FLCs from new approaches | 第93-94页 |
| ·Comparison between FLCs of new approaches and straight groove test | 第94-95页 |
| ·The effect of wall angle upon the position and shape of FLC | 第95-96页 |
| ·Summary and conclusions | 第96-98页 |
| 5. Process parameters and formability: A–Aluminum and steel sheets | 第98-113页 |
| ·The effect of operating parameters upon the formability | 第98-102页 |
| ·Material nature and the effect of forming speed upon formability | 第102-104页 |
| ·The effect of sheet thickness upon formability | 第104-105页 |
| ·The interactive effect of sheet thickness and tool size upon formability | 第105-111页 |
| ·Experimental analysis | 第105-110页 |
| ·Finite element analysis | 第110-111页 |
| ·The effect of blank size and blank holding force upon formability | 第111页 |
| ·Summary and conclusions | 第111-113页 |
| 6. Process parameters and formability: B–Titanium sheet | 第113-131页 |
| ·Tool and lubrication for incremental forming of titanium sheet | 第113-124页 |
| ·Experimental investigations for tool | 第114页 |
| ·Experimental investigations for lubricant | 第114-120页 |
| ·Effectiveness of lubricant and lubrication method | 第120页 |
| ·Characterization of the film used for lubrication | 第120-124页 |
| ·The effect of operating parameters upon formability | 第124-129页 |
| ·Comparison between the incremental and conventional formability | 第129-130页 |
| ·Summary and conclusions | 第130-131页 |
| 7. Material properties and formability | 第131-142页 |
| ·Correlations of material properties with formability in single point incremental forming | 第131-136页 |
| ·Correlations of material properties with improvement in formability caused by single point incremental forming | 第136-141页 |
| ·Measure of improvement in sheet formability | 第136页 |
| ·Correlations of improvement in sheet formability with material properties | 第136-141页 |
| ·Summary and conclusions | 第141-142页 |
| 8. Forming defects and formability | 第142-173页 |
| ·Kinds of forming defects and their relevance with formability and material properties | 第142-144页 |
| ·Metallic wall | 第142-143页 |
| ·Fold-in | 第143页 |
| ·Bulge | 第143-144页 |
| ·The effect of process parameters upon forming defects | 第144-161页 |
| ·Test plan | 第144-145页 |
| ·Quantification of forming defects | 第145页 |
| ·Test geometry | 第145-147页 |
| ·Regression analyses | 第147-161页 |
| ·Analytical modeling of the forming defects | 第161-166页 |
| ·Minimum tool radius and premature sheet failure due to simultaneous effect of forming defects | 第166-171页 |
| ·Design of experiments | 第167页 |
| ·Significance of parameters and empirical model to predict minimum tool radius | 第167-171页 |
| ·Summary and conclusions | 第171-173页 |
| 9. Conclusions and recommendations | 第173-179页 |
| ·Important conclusions | 第173-176页 |
| ·A new formability test | 第173-174页 |
| ·New methods to determine forming limit curves | 第174页 |
| ·The effect of process parameters upon formability | 第174-175页 |
| ·The effect of material properties upon formability | 第175页 |
| ·The effect of forming defects upon formability | 第175-176页 |
| ·Lubrication method for incremental forming of pure titanium sheet | 第176页 |
| ·Recommendations | 第176-177页 |
| ·Proposals for future research | 第177-179页 |
| List of references | 第179-186页 |
| Appendix 1 | 第186-187页 |
| List of publications | 第187-189页 |
| Acknowledgements | 第189页 |
