论文查询检索-中国期刊网

Determining the boundaries of globular-to-spray transfer in robotic GMAW

简介：Roboticgasmetalarcwelding(GMAW)experimentswereconductedusinganERTOS-1electrodewithAr+10%CO_2shieldinggas,andtheweldingcurrentandarcvoltagesignalswerecollectedbyadataacquisitionsystem.TheboundariesbetweenglobulartransferandspraytransferintermsoftheweldingcurrentandarcvoltageweredeterminedaccordingtothewaveformofelectricsignalsandtheFouriertransformresultsofarcvoltage.Theoptimumweldingparametersforthetwotransfermodeswereobtained,whichlaidafoundationforthenumericalsimulationandcontrolofGMAWprocess.
标签：机器人气体保护金属极电弧焊球形过渡喷射过渡熔滴过渡

全文阅读

Prediction of wire transfer behaviors in laser hot wire welding

简介：
标签：行为预测热丝焊激光转让焊丝温度测量

全文阅读

Analysis of metal transfer during electron beam welding with filler wire

简介：
标签：电子束焊接填充焊丝熔滴过渡传输模式视觉传感系统电荷耦合器件

全文阅读

Effect of the wire preheating transfer in GMAW temperature on the metal with thick wire

简介：
标签： GMAW 金属丝温度气体保护金属极电弧焊热转移传输模式

全文阅读

Influence of longitudinal magnetic field on metal transfer in MIG arc welding

简介：Metaltransferisanimportantphenomenoninmetalinertgas(MIG)arcweldingwithlongitudinalalternatingmagneticfield.Itisofgreatsignificancetoobservethemetaltransfermodesunderdifferentexcitatorycurrentsandfrequencies.However,itisverydifficulttoviewthemetaltransferprocessdirectlyduringwelding,duetothestronginterferencefromthearclight.Toobtaintherelationshipbetweenthemetaltransfermodesandthedifferentmagneticfields,ahigh-speedvideocamerawasusedtoacquiretheimagesofglobules.Differentmetaltransfermodesundertheconditionsofdifferentmagneticfieldsandweldingparameterswerestudied.Theexperimentshowsclearimagesofdroplettransferaswellasinfluenceoflongitudinalmagneticfieldonbothmetaltransferandglobuleshape.
标签：高速视频相机金属传递磁场弧焊

全文阅读

A vision tracking system of robot CO2 short transfer welding

作者：
学科：金属学及工艺 > 焊接
创建时间：1994-01-11
出处：《中国焊接：英文版》 1994年第1期

简介：ＡｖｉｓｉｏｎｔｒａｃｋｉｎｇｓｙｓｔｅｍｏｆｒｏｂｏｔＣＯ２ｓｈｏｒｔｔｒａｎｓｆｅｒｗｅｌｄｉｎｇＷｕＲｅｎｙｕ；ＷａｎｇＧｕｏｄｏｎｇａｎｄＬｉＸｉａｏｑｉ（ＴｉａｎｊｉｎＵｎｉｖｅｒｓｉｔｙ）ＺｈａｎｇＬｉａｎｃｈａｎｇ(ＭｏｔｏｒｏｌａＣ?..
标签： ROBOT WELDING real-time control image processing

全文阅读

A coupled model of grain growth and solute transfer in molten pool of nickel-based alloy

简介：
标签：溶质传输粮食增长镍基合金耦合模型熔池生长模拟

全文阅读

Computer-based sensing and visualizing of metal transfer mode in gas metal arc welding

简介：UsingXenonlamplightstoovercomethestronginterferencefromtheweldingarc,acomputer-basedsystemisdevelopedtosenseandvisualizethemetaltransferinGMAW.Thissystemcombinesthrough-the-arcsensingoftheweldingcurrentandarcvoltagewithhighspeedimagingofthemetaltransfer.Itcansimultaneouslydisplaythemetaltransferprocessesandwaveformsofelectricalweldingparametersinreal-timeThemetaltransfervideosandwaveformsofelectricalweldingparameterscanberecorded.Metaltransfersundervariousweldingconditionshavebeeninvestigatedwiththesystemdeveloped.
标签：金属传递模型弧焊气体金属焊接技术

全文阅读

Investigation on microprocessor based waveform control of short circuit transfer CO2 welding

简介：AnewkindofsimpleandflexibleCO_2weldingsystemwasdevelopedtocarryoutwaveformcontrol.ThesystemconsistedofIGBTinverter,PWMcircuitandmicroprocessorunit(MPU),inwhichtheoutputcurrentofconstantcurrent(CC)powersupplycouldbechangedaccordingtotransientphysicalstate,andthevariabledownsloperatecontrolcouldbeusedtoensureastableweldingprocess.Theweldingexperimentresultsprovedtheeffectivenessofthiscontrolapproach.
标签：二氧化碳保护焊波形控制微处理器短路变换

全文阅读

A new simulation model and its application in CO2 short-circuiting transfer welding

简介：AnewsimulationmodelofCO2short-circuitingtransferweldingmaybeemployedtodevelopanewpatternofweldingmachineandtopredictweldingprocessparameterstoobtaintheoptimumweldingtechnologyproperties.Inthispaper,anewsimulatingmodelisdevelopedaccordingtotheAWP(adaptingweldingphysicsprocess)waveformcontrolmethod.Goodagreementisshownbetweenthepredictedandexperimentallydeterminedresults.ThemodelwillmakeanimportantpromotioninthedevelopmentofCO2arcweldingtechnique.
标签：二氧化碳电弧焊仿真焊接参数预测短路传递

全文阅读

Analysis of droplet transfer of pulsed MIG welding based on electrical signal and high-speed photography

简介：
标签：熔滴过渡电信号脉冲MIG焊高速摄影基础图像过滤

全文阅读

Computer simulation of short-circuiting transfer welding under waveform control on inverter power source

简介：Asimulationmodelisintroducedaboutthenon-linearityprocessofshort-circuitingtransferinCO2arcweldingfordisplayingtheinteractionbetweentheinverterpowersourceandweldingarcunderwaveformcontrol.Inthesimulationmodel,thefeedbacksignalsofcurrentandvoltagearetakenrespectivelyatthedifferentphaseinashortcircuitperiodictimeandappliedtothePWM(pulsewidthmodulation)moduleinamodelofinverterpowersourcetocontroltheoutputofpowersource.ThesimulationoperationaboutthedynamicprocessofCO2short-circuitingtransferweldingisimplementedonthefoundedsimulationmodelwithapeakarccurrentof400Aandapeakvoltageof35V,producingthedynamicarcwaveformswhichcanembodytheeffectofinverterharmonicwave.Thesimulatingwaveformsareclosetothatofweldingexperiments.
标签：短路过渡焊逆变器电源波形控制计算机模拟

全文阅读

Study on arc characteristics and behavior of metal transfer in pulse current flux-cored arc welding of mild steel

简介：Thevariationinarccharacteristicsandbehaviorofmetaltransferwiththechangeinpulseparametershasbeenstudiedbyhighspeedvideocameraduringpulsecurrentflux-coredarcwelddeposition.Acomparativestudyofsimilarnaturehasalsobeencarriedoutduringflux-coredarcwelddepositioninglobularandspraytransfermodes.Theeffectofpulseparametershasbeenstudiedbyconsideringtheirmeancurrentandarcvoltage.Thearccharacteristicsstudiedbyitsrootdiameter,projecteddiameterandlength,andthebehaviorofmetaltransfernotedbythemetaltransfermodelandthedropletdiameterhavebeenfoundtovarysignificantlywiththepulseparameters.TheobservationmayhelpinunderstandingthearccharacteristicswithrespecttothevariationinpulseparameterswhichmaybebeneficialinusingpulsecurrentFCAWtoproducedesiredweldquality.
标签：电弧特性行为研究脉冲电流电弧焊接金属低碳钢

全文阅读

Effect of laser power on metal transfer in laser-double arcs P-MAG hybrid welding with single power source

简介：
标签：激光功率复合焊接单电源金属球状星团熔滴过渡

全文阅读

Experiment and finite element method analysis mass erosion and transfer of Ag/La2NiO4-based electrical contacts during operation

作者： Song Chen;Wei-Ming Guan;Kun-Hua Zhang;Zhi-Long Tan;Ming Xie
学科：金属学及工艺 > 金属材料
创建时间：2013-01-11
出处：《稀有金属：英文版》 2013年第1期

简介：Auniformtransienttemperaturefieldmodelofelectricalcontactsoperationwasfoundbyanalyzingtheprocessofclosingarc→constrictionresistanceJouleheat→breakingarc.EssentialparametersofAg/La2NiO4electricalcontactmaterialfortransienttemperaturefieldcalculationwereobtainedthroughtestsofelectricalcontactexperimentalinstrumentunder18VDCindifferentcurrents,othercorrelationexperiments,andcalculationanalysis.Thefiniteelementmethodwasappliedtosolvethetransienttemperaturefield,andthefeaturesanddistributionofthetransienttemperaturefieldwereobtained.Theconditionofmaterialerosionandmasstransfercanbeforecastedbythosecalculationresults.ItisbeneficialtoresearchaboutthelifetimeofAg/La2NiO4electricalmaterial.
标签：有限元方法实验仪器操作过程电气材料电触点侵蚀

全文阅读