K24高温合金的飞秒激光微小孔加工基础研究.pdf

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1、硕士学位论文K24高温合金的飞秒激光微小孔加工基础研究ResearchonBasicProcessingTechnologyofK24AlloyMicro-HolesMachinedByFemtosecondLaser艾亚米哈尔滨工业大学2018年6月国内图书分类号：TG665学校代码：10213国际图书分类号：621密级：公开硕士学位论文k24高温合金的飞秒激光微小孔加工基础研究硕士研究生：艾亚米导师：杨立军教授申请学位：工学硕士学科：航空宇航制造工程所在单位：机电工程学院答辩日期：2018年6月授予学位单位：哈尔滨工业大学ClassifiedIndex:TG665U.

2、D.C:621DissertationfortheMastersDegreeinEngineeringRESEARCHONBASICPROCESSINGTECHNOLOGYOFK24SUPERALLOYMICRO-HOLESMACHINEDBYFEMTOSECONDLASERCandidate:AdeyemiOluwaseunJohnSupervisor:Prof.YangLiJunAcademicDegreeAppliedfor:MastersofEngineeringAeronauticsandAstronauticsSpecialty:ManufacturingEn

3、gineeringAffiliation:SchoolofMechatronicsEngineeringDateofDefence:June,2018Degree-Conferring-HarbinInstituteofTechnologyInstitution:ContentABSTRACT.................................................................................................................IV1INTRODUCTION..............

4、..................................................................................-1-1.1Theuniquebenefitsoffemtosecondlaserasamachiningtool....................-1-1.2ResearchBackgroundandSignificance......................................................-1-1.2ResearchInsideandOutsideofCount

5、ryandAnalysis...............................-4-1.2.1ResearchAbroad.......................................................................................-4-1.2.2ResearchInsidethecountry....................................................................-10-1.3SummaryofResearchAbroadandins

6、idetheCountry.............................-15-1.4MainResearchContents............................................................................-15-2ModelsetupofsimulationofK24Alloyusingsingleanddualpulses................-16-2.1Modelingsteps...............................................

7、............................................-16-2.1.1Evaluationofthemainlaserparametersvariableforalasersourcepropagatedoverthefocalspotarea.................................................................-16-2.1.2Electron-systemheatequationforsinglepulse...........