K24高温合金的飞秒激光微小孔加工基础研究

目录

第一个书签之前

K24高温合金的飞秒激光微小孔加工基础研究

RESEARCH ON BASIC PROCESSING TECHNOLOGY OF K24 SUPER ALLOY MICRO-HOLES MACHINED BY FEMTOSECOND LASER

Content

摘要

ABSTRACT

1 INTRODUCTION

1.1The unique benefits of femtosecond laser as a machining tool

1.2 Research Background and Significance

1.3Research Inside and Outside of Country and Analysis

1.4 Summary of Research Abroad and inside the Country

1.5 Main Research Contents

2 Model setup of simulation of K24 Alloy using single and dual pulses

2.1 Modeling steps

2.2 Model results

2.3 Comparison of Electron and Lattice Temperature Distribution in single and dual pulse and its significance

2.4 Summary and conclusion

3 Experiments using different techniques of laser drilling

3.1 Experimental set up

3.2 Sample preparation

3.3 Ablation threshold with femtosecond laser

3.4 Experimental Procedure

3.5 Conclusion

4 Helical drilling Technique of micro-drilling

4.1 Preamble

4.2 Helical path and overlapping rate of laser pulse in helical drilling

4.3 Experimental set up

4.4. Results and discussion

4.5 Conclusion

结论

CONCLUSION

REFERENCES

哈尔滨工业大学学位论文原创性声明和使用权限

ACKNOWLEDGEMENT