c4钛合金真空电子束焊接工艺分析

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1、重庆大学工程硕士学位论文中文摘要本论文对TC4钦合金采用真空电子束进行的焊接工艺研究，研究结果分析和制订的焊接工艺参数已用于产品的实际生产。产品焊接质量达到了国家标准和国家军用标准，本课题的理论研究和实验分析具有较高的工程应用价值。关键词:TC4钦合金，电子束焊接工艺，焊接接头局部热处理，焊缝组织性能重庆大学工程硕士学位论文英文摘要ABSTRACTThemetalalloyofTC4TideveloPedfrom20eenturies50，515akindofmiddlingintensityofTime

2、talalloywitha一ptwoeharaeters，whiehcontains6%asteadyehem-一iealelementAIand4%psteadyehemicalelementV.TheapPlicationofvoyage，oceanengineering，ehemiealengineeringandtheautomobilemanufaeturingbecomemoreandmorewide.AlongwiththeextensiveaPPlicationoftheTimetalal

3、loymaterial，theProblemsinweldbeeomeinereasinglytroubled.TheweldingmethodofTimetalalloyincommonuseeontaintheargonarewelding，MIGwelding，pAW，EBw，LBwete.Atthesametime，inordertoguaranteethereliabilityoftheseam，theauto一welding15widelyadoPtedintheworld.Andthejun

4、etionoffillermaterial，theProteetiongas，theweldingeraftsPeeifieationParameter，theweldingProeess，thequalityeonirolete.allhavethehomologousteehniquerequest，aswellstrieter.BecausetheTiandmetalalloyofTihaveastrongaffinityfortheoxygen，nitrogen，hydrogenandearbon

5、ete.underthehightemPerature，theyareeasilyoxidatedduringtheweldingProcess，resultinginhotcracktendeney，effeetingtheweldedjointquality.This叭ielestiPulatesfortheresearchrouteandtechniqueprojectsbyanalyzingtheweldabilityoftheTiandmetalalloyofTi，eombiningthemet

6、alalloyofTC4TiusedinfactandthetrueinstanceofProduetion.Thematerialof1.smmsand7rn们nsthickiless15confirllledastheeontCntofresCarch.Intheweldingtechnologydesign，weprojeetandmanufaeturetheappropriativeteehniesequiPmenteoneemingtheE一beamofvaeuumweld，emPhasizin

7、gthequestionofaimatthe1.5mmsthieknessTC4titaniumalloyinconstaneyshaPe，insuringthesolderingofthetestingsamPleandthekindPieeesize.Atthesametime，WecarryontheeoneretedesignsandweldingProeesscontrols，totheweldingjunctionassemblyelamPingwelding，theweldingProeed

8、ure，theweldingcraftParameteroPtimizedandeontroledete.ExPloringthesPottotheweldofthesamPleandtheshowPieeebyXlightandtestingthemaehineryPerformanee，iteomestothedesignrequest.Aflerweldingtothe7mmsthicknessTC4tit翻umallo