焊接缺陷 weld defect-工业机器人工作站系统组建

焊接缺陷welddefect工业机器人工作站系统组建EstablishmentofIndustrialRobotWorkstationSystem咬边、焊瘤缺陷UndercutandweldoverlapdefectsTheconcavepartformedwhenthebasematerialoftheweldingfusionlinemeltsandthedepositedmetalisinsufficienttofill.Undercuttingoccurswhentheweldingheightistoohigh●Reduceweldingcurrent.●Underthesameconditions,lengthentheweldingdryExtensionlength.●Reduceweldingspeed.Undercuttingoccurswhentheweldingheightistoolow●Reducethearcvoltage.Whenitoccursononesideofthetablet●Lifttheweldinggunangletowardstheverticalplatedirection.Whenitoccursononesideoftheverticalplate●Tilttheweldingangletowardsonesideoftheflatplate.SettingofweldingconditionsSettingofweldingconstructionconditionscountermeasureflatriserUndercutVerticalplatesideFlatside咬边、焊瘤缺陷UndercutandweldoverlapdefectsItoftenoccursatthefusionlineofthefilletweld,wherethefillermetaldoesnotfusewiththebasemetal,forminganodularpart.Whenitoccursonbothsidesoftheflatandverticalplates●Excessiveweldingcurrent●Excessiveclearancebetweenplates●Increaseweldingspeed.SettingofweldingconditionsSettingofweldingconstructionconditionscountermeasureOccurringonatablet●Lifttheweldingangletowardsthesideoftheverticalplate.●Movetheweldingfrontendoutwardby1to2millimeters.●Raisetheweldingtravelangle.(Topreventthefusedmetalfrombeingblownforward)●Extendtheweldingstemwhenadjusting.(Likelytooccurwhendryelongationistoolong)Occurredduringtheerectionoftheboard●Tilttheweldingangletowardsonesideoftheflatplate●AdjusttheweldingpositiontoonesideoftheverticalplateflatWeldoverlapflatWeldinggunangleTargetPositionWeldingtraveldirection焊脚尺寸不足、焊高过高缺陷DefectssuchasinsufficientweldingfootsizeandexcessivelyhighweldingheightcountermeasureSettingofweldingconditionsSettingofweldingconstructionconditionsWeldingcurrentandweldingspeedmatchingthelengthoftheweldingleg(weldingwirediameter1.2mm)Whenalldimensionsonbothsidesareinsufficient●Increaseweldingcurrentandarcvoltage.●Adjustthedryelongationoftheweldedjoint.Whenonesideofthesizeisinsufficient●Adjusttheweldingangleintheoppositedirectionofinsufficientweldingfootsize.Theweldingfootsizeoftheweldingmetalonbothsidesoftheflatplateandverticalplateisinsufficient,orthesizeononesideisinsufficient.Themaximumleglengthforhorizontalfilletweldingandsinglepassweldingisabout8mm.焊脚尺寸不足、焊高过高缺陷DefectssuchasinsufficientweldingfootsizeandexcessivelyhighweldingheightcountermeasureSettingofweldingconditionsSettingofweldingconstructionconditionsTheweldingheightistoohighanddoesnotmatchthewidthoftheweldseam.Itoftenoccursduringupwardweldingoruphillweldingofinclinedweldsduringverticalwelding.●Reducetheweldingcurrenttoreducetheunitdepositionamount.●Shortenthedryelongationoftheweldingwire.·●Increasethearcvoltage.·●Trytominimizeupwardweldingandchoosedownwardwelding.焊高过低、焊缝形状不整齐缺陷DefectssuchaslowweldingheightandirregularweldshapecountermeasureSettingofweldingconditionsSettingofweldingconstructionconditionsThesurfaceoftheweldseamisconcave,resultinginadecreaseineffectivethickness.Itoftenoccurswhenweldingdownwardorinclineddownwardonthefacade.EffectivethicknessofweldseamWeldingtraveldirection●Reducetheweldingcurrentandreducetheunitdepositionamount.●Shortenthedryelongationoftheweldingwire.·●Reducearcvoltage·●Reducetheangleatwhichtheweldinggunmovesforward.·●Adjusttheweldingspeed.●Depositingmetalfirstincreasestheweldingspeed.●Delayeddepositionofmetalreducesweldingspeed焊高过低、焊缝形状不整齐缺陷DefectssuchaslowweldingheightandirregularweldshapecountermeasureSettingofweldingconditionsSettingofweldingconstructionconditionsManifestedasirregularweldwidthandshape.UnevenweldwidthWeldwidthreinforcementThewirefeedingsystemneedstobecarefullyinspected●Eliminatechangesinheightandpositionthroughteaching.●Theholeoftheconductivenozzleisworntoomuch,replaceit.●Confirmwhethertheweldingwirecanbetransportedsmoothly.●Confirmifthereareanyscratchesontheweldingwire.●Confirmwhethertheconveyorshaft,pressureshaft,andweldingwireguidedevicehaveanyscarsorwear.焊缝不直、气孔缺陷Weldseamnotstraight,porositydefectscountermeasureSettingofweldingconditionsSettingofweldingconstructionconditionsThisismanifestedasadeviationbetweentheweldseamandthetargetweldingline,withaserpentinefusionlinethatfluctuatesupanddown.ThewirefeedingsystemneedstobecarefullyinspectedGrindingofconductivenozzleholesThesituationoftheweldingwireafterbeingsentoutfromthenozzleinjectorConductivenozzle●Adjustthestraighteningwheeltofixthewirefeedingdirectionoftheweldingwire.●Adjustthestraighteningwheelsothatthebendingdiameteroftheweldingwireisgreaterthan500mm.●Confirmthediameterofthecircularholeoftheelectricalnozzle.●Whenmagneticbiasblowing(arcdeviatesinonedirection),changetheweldingdirectionandgroundwiredirection焊缝不直、气孔缺陷Weldseamnotstraight,porositydefectscountermeasureSettingofweldingconditionsSettingofweldingconstructionconditionsWhenmoltenmetalencountershightemperatures,itabsorbsalargeamountofoxygen,nitrogen,hydrogenandothergases.Thegasesthatdonotfloattothesurfaceandremaininsideforminternalpores,whilethegasesthatremainonthesurfaceformexternalpores.(collectivelyknownaspores)sunkenstomaSphericalstomata●Adjusttheprotectivegasflowratetothediameteroftheconductive