搜索
,,,,(,210094):,,,,SK6,,,:;;:TG444+.73:A:0253-360X(2004)03-52-050,,,()(),,,,,,,[1],,,,,,,,,1:2003-05-19:(BG2002021)1,16MnR,,,MAGSK6S-350MAG,[2]1Fig.1Structuregraphoftypicalboiler22.1,()(),,,[3],,25320046TRANSACTIONSOFTHECHINAWELDINGINSTITUTIONVol.25No.3June2004©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.[4],X,Z,Y,,,2.2,,22X2ZY2Fig.2SketchofcharacterreferenceframeofspaceweldZ2XYZ,,,33.1,3CAD,CAD,(,CAD,),(),(),,[4]3Fig.3Framesketchofoff2lineprogrammingsystemusedinboiler3.2CAD4,4a,4b5,,4Fig.4Structureviewoftypicalboiler3,:53©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.5Fig.5Sketchofworkpiecemodel3.3,,,,,,,,3.4,,5,OXYZ,XYZ2XOZd,r,R:(Y-d)2+X2=r2,(Z0):Z2+X2=R2:(Y-d)2+X2=r2,Z2+X2=R2[5](1)XOXYZr(1,1)=-Z0(Y0-d),r(1,2)=X0Z0,r(1,3)=X0(Y0-d),:X0,Y0,Z0OXYZ(2)ZOXYZr(3,1)=BB1CC1BB2CC2,r(3,1)=CC1AA1CC2AA2,r(3,1)=AA1BB1AA2BB2,:AA1=X0(Y0-d)2-Z02X0,AA2=-Z0(Y0-d)BB1=-Z02(Y0-d)-X02(Y0-d),BB2=X0Z0,CC2=X0(Y0-d),CC1=Z0X02+Z0(Y0-d)2+Z0X02(3)XYZ,YOXYZr(2,1)=r(3,2)r(3,3)r(1,2)r(1,3),r(2,2)=-r(3,3)r(3,1)r(1,3)r(1,1),r(2,3)=-r(3,1)r(3,2)r(1,1)r(1,2)OXYZOXYZoRo=r(1,1)r(2,1)r(3,1)r(1,2)r(2,2)r(3,2)r(1,3)r(2,3)r(3,3),(X0,Y0,Z0)R=r(1,1)r(2,1)r(3,1)X0r(1,2)r(2,2)r(3,2)Y0r(1,3)r(2,3)r(3,3)Z00001,4,CAD,,,,,4.1SK6,(INFORMII),,/JOB//NAMEat1/////TOOL0/////POSTYPEBASE/////RECTAN//P000=620,50,-223,0,45.000,-90//5425©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.P002=600,200,-3,0,45.000,-90//P003=606.249,200.098,-3.065,-1.687,45.006,-89.403P004=613.965,200.488,-3.325,-3.767,45.031,-88.663......P094=600,600,-3,0,45.000,90P095=600,10,-223,0,45.000,90//INST///DATE2002/01/2814:21NOP//MOVJP000VJ=100//,MOVJP001VJ=100100cm/minARCONAC=350AV=32//MOVCP002V=30MOVCP003V=30MOVCP004V=30......MOVCP093V=30MOVCP094V=30ARCOFAEF#(1)//MOVJP095VJ=100END//,,,,XYZ,,XYZ,[5],,,4.2,,600mm,400mm300mm200mm100mm,100mm,,,at1.jbi,6,400mm7,300mm81,,,6Fig.6Robotprogrambuiltbysystem7400mmFig.7Oneframeofgraphicsimulationofrobotwelding400mmdiameterpipe8300mmFig.8Oneframeofgraphicsimulationofrobotwelding300mmdiameterpipe5(1)(2),,3,:55©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,:[1].[D].:.1998.[2].[D].:.2000.[3].[M].:,1998.45.[4],,,.[J].,2001,22(5):4548.[5],,,.[J].,2001,22(4):8486.:,,1973,,:,10Email:liuy1602@sina.com5625©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.Keywords:singlechipcomputer;inverter;pulsedmetalinert-gasarcweldingTransientliquidphasebondingmechanismandmicrostruetureofMGH956jointsZHANGSheng,HOUJin-bao,GuoDe-lun,ZHANGLei(Bei2jingAeronauticalManufacturingTechnologyResearchInstitute,Beijing100024,China).p4347Abstract:TileinterlayeralloyKColisdevelopedfortransientliquid2phase(TLP)diffusionbondingofMGH956superalloy.Therelativeas-pectshavebeenanalyzedaboutthemierostruetureofthejoint,elementsandbondingtechnologies.TheTLPbondingmechanismofMGH956su-peralloyhasbeenverified.Atthesametime,theresiduesinthejointsofMGH956superalloyareanalysedfurther.Theexperimentalresultsshowthattheintegratedjointswithouttheresiduescouldbeattainedontheconditionof1240%/8h.Keywords:oxidedispersionstrengthenedsuperalloy;Cobasedin-terlayer;transientliquidphasebonding;microstruetureCharacteristicsofstressdistributionandpredictionofstrengthinheat-affect2edzonesoftenedweldedjointsZHULiang,CHENJian-hang(StateKeyLab.ofAdvancedNon-FerrousMaterials,GansuProv-ince,LanzhouUniversityofTechnology,Lanzhou730050,China).p4851Abstract:TheeffectsofyieldstressdecreaseduetocoarseninggrainintheHAZ(heat-affectedzone)offine-grainedsteelsweldedjointsontheloadcapacitiesofthejointarerequiredtobeevaluated.Thefiniteelementanalysesarecarriedoutontensileplatespecimenofbutt-weldedjointwithsoftenedHAZ.Thestressdistributioninsuchjointsshowsthecharacteristicsasfollows:theMisesequivalentstressincreasewiththeexponentiallawintheweldsandbasemetaladjacenttosoftenedHAZ,andthatinsoftenedHAZde2creasecorrespondingly.AttheboundariesbetweenHAZandweldmetalandbasemetalMisesequivalentstressesrapidlychanges,amplitudesofwhicharerelatedtothedifferencesofyieldstressesinthebothsidesaroundthebound2ary,andappliedstress.TheintegrationofthedecreaseintheMisesequivalentstressinthesoftestzoneequalstothatoftheincreaseovertheweldmetalandbasemetalzones.Basedonaboveresults,anapproachtopredictthetensilestrengthofsuchjointissuggested.Thepredictionresultsusingthismethodareconsistentwiththeresultscalculatedwithfiniteelementanalysismethod.ThisapproachissuitableforpredictionofstrengthoftheHAZ-softenedweld2edjoints,anddesignfortensilestrengthinovermatchedweldedjoints.Keywords:weldedjoint;tensilestrength;strengthmatching;fi-niteelementanalysis;heat-affectedzonesoftenedOff-lineprogrammingsystemofarc-weldingrobotbasedonboilerLIUYong,XUYue-lan,WANGKe-hong,YUJin,YANGJing-yu(Nan2jingUniversityofScience&Teehnology,Nanjing210094,Chi-na).p52256Abstract:Off-lineprogrammingsystemofweldingrobotusedinboilerisstudied.Characteristicsofboileranditscoordinatesofcomplexspacedweldareeatchedinthesystem.Thepathsandpositionsoftorcharelayedout.Theenvironmentssuchasboilerarebuilt,aecordingtotherobotlanguage