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

(整期优先)网络出版时间:2006-04-14
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Roboticgasmetalarcwelding(GMAW)experimentswereconductedusinganERTOS-1electrodewithAr+10%CO_2shieldinggas,andtheweldingcurrentandarcvoltagesignalswerecollectedbyadataacquisitionsystem.TheboundariesbetweenglobulartransferandspraytransferintermsoftheweldingcurrentandarcvoltageweredeterminedaccordingtothewaveformofelectricsignalsandtheFouriertransformresultsofarcvoltage.Theoptimumweldingparametersforthetwotransfermodeswereobtained,whichlaidafoundationforthenumericalsimulationandcontrolofGMAWprocess.