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简介：Adistributedcontrolsystemisdesignedforplasmasprayingequipmentandtheconfigurationsofsystemsoftwareandhardwareisdiscussed.Throughfoundinganexpertdatabase,thesprayingprocessparametersareworkedoutandtheinitializationandcontrolofsprayingprocessarerealized.Theplasmasprayingsystemwiththiscontrolconfigurationcansimplifythesprayingoperation,improveautomationlevelofsprayprocess,andapproachtheexperiencecriterionassoonaspossible.

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简介：Anewkindofcontrolsystemforkeyholeplasmaarcwelding(K-PAW)wasdevelopedbasedonthecomputerandtheGraphicsLanguage-LabVIEW.Itcansetandoutputtherequiredcurrentwaveformswithdesireddecreasingslopessothatthecorresponding'openingandclosing'ofkeyholecanoccurperiodically.Withthiscontrolstrategyofweldingcurrentwaveforms,theworkpieceisfullypenetratedwhilenoburn-throughoccurs.Keyholeplasmaarcweldingexperimentswereconductedtoverifythestabilityandreliabilityofthedevelopedsystem.

简介：Robot-basedremanufacturingsystemcanscanthewornpartsanddevelopthecorrespondingmodels,comparethemwiththestandardmodel,calculatethewelddeposit,implementweldingpathplanning,andrepairthewornpartswithMIGsurfacingautomatically.Thispaperinvestigatestheweldingpathplanningaftercalibrating,scanningandmodelrebuilding.Thefollowingaspectsarecontained:introducingtheplanningprinciple,selectingthesuitableweldingprocessbasedonweldingparameters(currentandspeed),calculatingweldingoverlapquantitybythesuperpositionmethod.Also,ithasbeenverifiedthatgoodweldprofilecanbeobtainedwiththeoptimizedparameters.

简介：AfteranalyzingtheweldingprocedureknowledgeinChinesenationalstandardsforweldingprocedurequalificationofsteelpressurevesselfromthepointofestablishingexpertsystem,itcanbedividedintofivetypesofknowledge,i.e.practice,definition,regularity,processanddescriptionknowledge.Theknowledgeexpressionmethodsareestablishedaccordingtothedifferenttypeofweldingprocedureknowledge.Thereasoningprocessbasedonruleisadopted.Andthereasoningengineisembeddedamongobjectsintegratedwiththeknowledgebase.

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简介：AnewtypeofDZ9000EOxygenGaseousHVOFsystem(GHVOF)isdevelopedwhichcanreducethecostofcoatingsandincreasethein-situremovabilitytoadaptvariousworkingconditions.Thewholesystemiseconomical,whichenablesthesystemtomeettherequirementofsprayingmediumorlowcostHighVelocityOxy-Fuel(HVOF)coatingsformediumandsmalljobshops.ThedepositedcermetscoatingsbytheDZ9000EsystemhavegoodperformancewithaveragemicrohardnessHV0.2ofmorethan1000andthebondstrengthbetweencoatingandsubstrateofgreaterthan50MPa.

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简介：Aimingattheweldingconditionofspacecomplexseamisuncertainandtheintelligenceofweldingrobotisunideal,atwo-wheeledmobilerobotisdeveloped.Itnotonlyhasthecapacityofautonomousdecisionandavoidingobstacles,butalsocanflexiblymoveandstronglyadaptvariableenvironment.Thecompositionoftheweldingrobotisdescribedandthedynamicmodelisestablished.Thefeasiblecontrolstrategyandcontrolalgorithmisputforward.Thesimulationexperimentsofrealworldareconducted,theresultsaresatisfying.

简介：WiththebackgroundofthecontrolofadditionalmechanicalforcedroplettransferinMIG/MAGwelding,regardingtheACservomotorascore,anoveloscillatingwirefeedingsystemhasbeendevelopedwithexcellentperformancesofcontrolanddynamicaccelerationwhichistested.Systemconstitutionandoperationprincipleareintroducedinthispaper.Influencesofparametersondynamicaccelerationperformanceareanalyzedanddiscussedemphatically,suchasoscillatingfrequency,oscillatingamplitudeanddraw-backspeed.Experimentalresultindicatesthataccordingtothetechniqueofweldingcontrol,thenovelwirefeedingsystemrespondsrapidlytovariouskindsofcontrolordersofwirefeedinganddraw-back,andrealizesflexiblecontrolofweldingwireaxialmovement,includingdynamicshifting,oscillatingandsoon.

简介：ＡｖｉｓｉｏｎｔｒａｃｋｉｎｇｓｙｓｔｅｍｏｆｒｏｂｏｔＣＯ２ｓｈｏｒｔｔｒａｎｓｆｅｒｗｅｌｄｉｎｇＷｕＲｅｎｙｕ；ＷａｎｇＧｕｏｄｏｎｇａｎｄＬｉＸｉａｏｑｉ（ＴｉａｎｊｉｎＵｎｉｖｅｒｓｉｔｙ）ＺｈａｎｇＬｉａｎｃｈａｎｇ(ＭｏｔｏｒｏｌａＣ?..

简介：Ｄｅｖｅｌｏｐｍｅｎｔｏｆａｎｅｎｇｉｎｅｅｒｉｎｇ－ｐｒａｃｔｉｃａｌｅｘｐｅｒｔｓｙｓｔｅｍｆｏｒａｒｃｗｅｌｄｉｎｇａｎｄｉｔｓｓｈｅｌｌＰｅｎｇＪｉｎｎｉｎｇ；ＣｈｅｎＢｉｎｇｓｅｎａｎｄＬｉｕＱｉａｎｇ（ＱｉｎｇｈｕａＵｎｉｖｅｒｓｉｔｙ，...

简介：AccordingtothemaintoolsofTRIZ,thetheoryofinventiveproblemsolving,anewflowchartoftheproductconceptualdesignprocesstosolvecontradictioninTRIZisproposed.InordertorealizeautonomousmovingandautomaticweldseamtrackingforweldingrobotinTailedWeldedBlanks,acreativedesignofroboticvisualtrackingsystembasedonCMOShasbeendevelopedbyusingtheflowchart.Thenewsystemisnotonlyusedtoinspecttheworkpieceaheadofaweldingtorchandmeasurethejointorientationandlateraldeviationcausedbycurvatureordiscontinuityinthejointpart,butalsotorecordandmeasuretheimagesizeoftheweldpool.Moreover,thehardwareandsoftwarecomponentsarediscussedinbrief.

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简介：ThisinvestigationwasperformedtostudyacousticfieldsignalinordertoimproveRSWquality.Researchersfirstlybuiltanacousticarraysensorsystem,whichincluded8MPA-416acousticsensors,dataacquisitioncardandLabVIEW.Thesystemobtainedtheacousticfieldinformationintheprocessofnuggetgrowing.Duetothenonlinearityfieldsignal,arraysensoralgorithmwasutilizedtoquantitativelyanalyzethecharacteristicsofacousticfieldandreducednoise.TheexperimentandcalculationresultsshowthatarraysensorsystemcanacquireacousticfieldsignalofnuggetgrowingintheRSWprocessandarrayprocessingalgorithmbasedonacousticfieldcanextractcharacteristicparameterstoevaluateRSWquality.ItwasconcludedthattheacousticarraysensorsystemoffersanewmethodologyforRSWqualityinspection.

简介：Adigitalarcweldingpowersupplywasdesignedwiththeadvancedreducedinstructionsetcomputermachine(ARM)andembeddedreal-timemulti-taskoperatingsystemmicroC/OS-Ⅱ.TheARM,withitspowerfulcalculatingspeedandcompleteperipheralequipments,isverysuitabletoworkasthecontrollerofthedigitalpowersupply.ThemicroC/OS-ⅡtransplantedinARM,helpstoimprovetherespondentspeedagainstvariousweldingsignals,aswellasthereliabilityofthecontrollingsoftware.Theweldingprocessconsistsofninetasks.Thetasksofgreatsignificanceonreliabilityofthewelder,forexample,theA/Dconversionofcurrentandvoltage,enjoytoppriority.Toavoidsimultaneous-sharingonA/DconverterandLCDmodule,twosemaphoresareintroducedintoensurethesmoothperformanceoftheweldingpowersupply.Provenbyexperiments,theARMandthemicroC/OS-Ⅱcangreatlyimproveboththerespondentspeedandthereliabilityofthedigitalwelder.

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