激光焊接工艺的现状与进展-陆斌锋

　20084上海交通大学上海市激光制造与材料改性重点实验室(200240)　　　　　　、、、,。,,,,,,,。:　　　:　TG456.70　　　。,/,,,。,,X。,,[1]。,,、、、,,,、、,,。,、、、。,,。,、、、、、[2]。,。1　1.1　,CO2Nd::2007-12-30YAG。CO2Nd:YAG。Nd:YAG,1.06μm,,,20%～30%。0.25mm。CO2,10.6μm,80%～90%,0.75-0.1mm[3]。Nd:YAG4000～6000W,10000W。CO220000W。CO2,,,,25000℃,,。CO2,,。,CO210kW,,,。,CO2,[4]。Nd:YAG,,[5]。,1kW,50%。(10000h),。(DPSSL)53　ProceedingsoftheTwelfthNationalWeldingConferenceofChina20084。3kWLDSlab(1a),20～30mm[6]。LD、、(1b)。,,2～6kW。,,、,、。CO2Nd:YAG。1　[5]1.2　,,、。:(1),。(2),。:()[7]。:(2),(3)。,,;,。,。,,。,,,;,,。、、。,,,,,、。,,,,。,,10～1000kW/cm2。,54　20084,,。:。,。,,,。,。,,,。2　,,[8]。,,,。,,,[9]。,、、,,。,[10]。,,,。,,。,[11]。,,,、、、、,。,60,9.3～20.3kg;100,。,。,、,。,。,,,,,,;,,。,[12]。,:/;,;;;。。Fronius。PhaetonD1AUDIA8,BMW5。GiovanniTani-MIG[13],(30%～40%)(10～30L/min)。[14],2004625,。,,,,,,,,,,XXL,y,xy,。160μm,150～250mm,55　ProceedingsoftheTwelfthNationalWeldingConferenceofChina20084。0.05mm,Nd:YAGCO2。,15%。,,,,,。,。,、[15]。(),,。。,。Nd:YAG1μm,,。,。。CO2,,。Nd:YAG,。,,Nd:YAG。MarianaIlieMieMonteCarlo,,,,,,[16]。,。J.Xie,,,,[17～18]。4。,,。,。,,,,。4　[12-13]3　　　,,。、。。,,。,CO2(、),(、、)(),,。　[1]　.[J].,2000,25(1):48-53.56　2008416MnR河北建筑工程学院(张家口市　075024)　　天津大学材料科学与工程学院(300072)　　　　,、、、,—。16MnR,。,,,。,。:　　　:　TG457:2007-12-30　[2]　　,,,.[J].,2003,29(1):15-18.　[3]　　,,,.[J].,2002,29(2):185-188.　[4]　.Lasermaterialprocessingapplicationsinelec-tronicandelectricindustries[J].,2001,19(1):176-181.　[5]　HugelH.Newsolid-statelasersandtheirapplicationpoten-tials[J].OpticsandLasersinEngineering,2000,34:213-229.　[6]　LeongKH,KirhamPA,MeinertKC.Deeppenetrationweldingofnickel-aluminumbronze[A].Proceedingsofthelasermaterialsprocessingconference[C].Orlando:LaserInstAmerica,1999(SectionA).174-183.　[7]　YueTM,JiangCY,XuJH,etal.Laserfantasy:frommachiningtowelding[J].JournalofMaterialsProcessingTechnology,1996,57:316-319.　[8]　PanLungKwang,WangCheChung,etal,OptimizationofNd:YAGlaserweldingontomagnesiumalloyviaTaguchia-nalysis[J],OpticsLaserTechnology,2004,37:33-42.　[9]　WuQiang,GongJinke,ChenGenyu,etal.Researchonlaserweldingofvehiclebody[J].OpticsLaserTechnolo-gy,2008,40:420-426.[10]　PastorM,ZhaoH,MartukanitzRP,etal.Porosity,un-derfillandmagnesiumlossduringcontinuouswaveNd:YAGlaserweldingofthinplatesofaluminumalloys5182and5754[J].WeldingJournal,1999(6):207-216.[11]　RappJ,GlumannC,DausingerF1,etal.Laserwelding　　　ofaluminiumlightweightmaterials:problems,solutions,readinessforapplication[J].OpticalandQuantumElec-tronics,1995,27(12):1203-1211.[12]　GrafT,StauferH.Laser-hybridweldingdrivesVWim-provements[J].WeldingJournal,2003,82(1):42-48.[13]　GiovanniTani,GiampaoloCampana,AlessandroFortunato,etal.Theinfluenceofshieldinggasinhybridlaser-MIGwelding[J].AppliedSurfaceScience,2007,253:8050-8053.[14]　LiZ,GobbiSL.Laserweldingforlightweightstructures[J].JournalofMaterialsProcessingTechnology,1997,70:137-144.[15]　HanbinDu,LunjiHu.Astudyonthemetalflowinfullpenetrationlaserbeamweldingfortitaniumalloy[J].Com-putationalMaterialsScience,2004,29:419-427.[16]　MarianaIlie,Jean-ChristopheKneip.Through-transmissionlaserweldingofpolymers-temperaturefieldmodelingandin-fraredinvestigation[J].InfraredPhysicsTechnology,2007,51:73-79.[17]　XieJ.Dualbeamlaserwelding[J].WeldingJournalRe-searchSupplement,2002,81:223-230.[18]　XieJ.Weldmorphologyandthermalmodelingindual-beamlaserwelding[J].WeldingJournalResearchSupplement,2002,81:283-289.:　陆斌锋,1980年出生,博士研究生,研究方向为高能束材料表面改性。57MainTopics,AbstractsKeyWordsWELDINGJOINING2008,No.4Keywords:　wearablealloy,　hardfacing,　primarycarbideMicrostructuresandpropertiesofEBweldsofanadvancedhighstrengthtitaniumalloyGuoShaoqing,YuHuai,ZhangWenyang,YuanHong,LiXiaofei,ZhangXuejun(BeijingInstituteofAeronauticalMaterials,Beijing100095,China).45-49Abstract　Studiesonthemicrostructuresandpropertiesofelectronbeamweldswereconductedforanadvancedhighstrengthα-βtitaniumal-loy,whichisTi-Al-Zr-Mo-Cr-Nbsystem.Tensilepropertiesofwelds,basemetalandweldedjointsunderfourheattreatmentswerein-vestigated.Inthesetreatmentstheweldsweresubjectedrespectivelytosolution-ageing-welding,solution-welding-ageing,solution-ageing-weld-ing-solution-ageingandannealing-welding-βannealing.Itisrevealedthatthestrengthoftheweldsinas-weldedconditionishigh,whileitsductilityispoor.Postweldsolutionandageingcanreducejointstrengthandenhanceitsductilityobviously.Preweldsolutionandpostweldage-ingwillincreasejointstrengthfurtherandmakeitsductilitypoorer.Postweldβannealingcanresultintheweldswithhighstrengthandgoodductility,butithasadrawbacktocauseseriousdamagetotheductilityofbasemetal.Onthebaseoftheforegoingthoroughcomparisons,itisclearthatpostweldsolutionandagingismorebeneficialfortheweldtensileproperties.Finallytheeffectsofmicrostructuresontheweldsstrengthandductilitywerediscussed.Keywords:　titaniumalloy,　electronbeamwelding,　postweldheattreatments,　mechanicalpropertiesFatiguelifeanalysisonweldedstructureofgantrycraneJiaFayong(ChinaClassificationSocietyIndustrialCorp.,Beijing100006,China).p50-52Abstract　Thefiniteelementanalysisanddynamicsimulationwerecarriedtometalweldedstructureof50t×35mofgantrycranebasedonactualoperationcase,andthestressdist