首页--工业技术论文--金属学与金属工艺论文--特种加工机床及其加工论文--光能加工设备及其加工论文

Experimental Study of Process Parameters Setting in Laser Additive Manufacturing for the Repair of Inconel 718 Turbofan

ACKNOWLEDGEMENT第5-7页
摘要第7-8页
ABSTRACT第8页
CHAPTER 1 INTRODUCTION第15-26页
    1.1 Background of study第15-17页
    1.2 Additive manufacturing technology第17-19页
    1.3 Overview on Superalloys第19-20页
        1.3.1 Nickel based superalloys第19-20页
    1.4 Inconel 718第20-23页
    1.5 Cobalt-based superalloys (Trade name stellites)第23-24页
    1.6 Iron- Nickel based superalloys第24页
    1.7 Heat treatment of Inconel 718 alloy第24-26页
        1.7.1 Homogenization STA第24-25页
        1.7.2 Direct aging第25-26页
CHAPTER 2 LASER ADDITIVE MANUFACTURING PROCESS第26-40页
    2.1 Introduction第26-27页
    2.2 Methods of laser additive manufacturing第27-28页
        2.2.1 Two step process第28页
        2.2.2 One step process第28页
    2.3 Clad geometry第28-30页
    2.4 Powder efficiency第30-31页
    2.5 Dilution第31-32页
    2.6 Attenuation of laser power of focused beam by powder flow第32-34页
    2.7 Defects appearing in clad tracks and layer第34-38页
    2.8 Applications of laser additive manufacturing and market opportunities第38-39页
    2.9 Emerging trends in Laser Additive Manufacturing第39-40页
CHAPTER 3 TEMPERATURE MONITORING第40-54页
    3.1 Contact temperature measurements第40-41页
    3.2 Non-contact temperature measurement第41-45页
        3.2.1 Radiation thermometer theoretical background第42-44页
        3.2.2 Mode of operation第44-45页
    3.3 Emissivity第45-48页
    3.4 Process radiation第48-52页
    3.5 Temperature fields and cooling rate第52-54页
CHAPTER 4 OPTIMIZATION OF PROCESS PARAMETERS第54-70页
    4.1 The Taguchi method and Grey Relational Analysis第54-59页
    4.2 ANOVA analysis第59-60页
    4.3 Results of Design of experiment第60-61页
    4.4 Multi response approach第61-63页
        4.4.1 Grey Relational Analysis第61页
        4.4.2 Steps in Grey Relational Analysis第61-63页
    4.5 Experimental Calculations of the 1~(st) experiment第63-64页
    4.6 Sample calculation第64-67页
    4.7 Conclusions of optimization methodology第67-69页
    4.8 Discussion of the results第69-70页
CHAPTER 5 EXPERIMENTAL SET UP第70-75页
    5.1 Introduction第70页
    5.2 Laser additive manufacturing system set up第70-71页
    5.3 Powder Delivery system第71页
    5.4 Powder delivery nozzle第71-75页
CHAPTER 6 RESULTS AND DISCUSSION第75-83页
    6.1 Experimental Results第75-80页
    6.2 Discussion第80-83页
CHAPTER 7 CONCLUSION AND FUTURE WORK第83-85页
    7.1 CONCLUSION第83-84页
    7.2 FUTURE WORK第84-85页
REFERENCES第85-91页
APPENDIX Ⅰ第91-92页
    IMAGE OF NBD-T1700 TUBE FURNACE FOR HEAT TREATMENT第91页
    MICROHARDNESS VALUES BEFORE AND AFTER HEATTREATMENT第91-92页
APPENDIX Ⅱ MATLAB CODES第92-95页
APPENDIX Ⅲ SPECTRUM OF ELECTROMAGNETIC RADIATION第95页

论文共95页,点击 下载论文
上一篇:熔覆多元改性钴基复合涂层的组织结构与性能研究
下一篇:陶粒轧制和深冷处理对Cu42Zr42Ag10Ti6非晶合金力学性能的影响