简介：Laserbeamweldingisanewtechniqueforthefoodcanmaking.Thisresearchstudiedtheweldingtechnologyandparametersforthetin-platecanandtheirinfluencesonweldingspeedandquality,investigatedthemicrostructureandpropertiesoftheweld,analyseddistributionoftinintheweldmetalandcarriedouttheflangingtestofthecanbody.Theresultsshowthatlaserweld-ingofthecanbodyischaracterizedbyhighweldingspeed,fineappearance,goodqualityandstableandreliableprocess.Thistechnologycanfulfillthere-quirementsofcanmaking.

简介：Shipsandautomobilesarefabricatedfromthinplates.Toassembleparts,weldingiscommonlyemployed.However,weldingdistortioninlargethin-platepanelstructureisusuallycasedbybucklingduetotheresidualstress.Inthisstudy,anelasticfiniteelementmethodforpredictingtheweldingdistortionofthree-dimensionalthin-platestructureswithconsideringweldingsequencewasproposed.Inthismethod,theinherentstrainwasemployedtomodelthelocalshrinkageduetoweldingitself,andtheinterfaceelementwasintroducedtosimulatetheassemblyprocess.Theproposedmethodwasappliedtostudytheinfluenceofweldingsequenceonthebucklingdistortionofthelargethin-platepanelstructureduringassembly.