Brief introduction of arc weld

BriefintroductionofTheprocedurehandbookofarcweldingChapter2TSCCompanyLogoSection2ThesystemapproachtoweldedesignfundamentofadesignDesignofweldjointFillet-weld,grooveweld,grooveandfilletcombinationAllowableforweldsAISCfatigueallowablesCompanyLogoSizeamountofweldExcessiveweldsizeiscostly.Thelegsizeisespecallyimportant,sincetheamountofweldrequiredincreasesasthesquareoftheincreaseinlegsizeLongerfilletweldshavingasmalllegsizearelesscostly.Sometimes,forexample,underlight-loadornon-loadcondition,intermittentfilletweldispermittedtoreducecost.Forautomaticwelding,continousweldingisbetter.Stiffnersanddiaphragmneedlesswelding.Keeptheamountofweldingtoaminimum.CompanyLogoFouradvancedsinfabrication&welddesign•Machineflame-cuttingequipmentthatproducessmoomthlycutedges,andmachinesforshearingthickerplatethancouldformerlyshear-cut.•Improvedweldingelectrodesandweldingprocesse.•Heavybrakes•weldingpoditioners.CompanyLogoDistortioncontrolHigh-depostionelectrodes,automaticwelding,highweldingcurrentstendtoreducethepossibiltyofdistortion.Weldsshouldbebalancedabouttheneutralaxisofthemember.AvoidexcessiveprestressingmembersbyforcingalignmenttogetbetterfitupforpartsJointthatmayhavegreatestcontractiononcoolingshouldbeweldedfirst.CompanyLogoRedesignbyequivalentsectionsCompanyLogoUseofnomographsinconversionsCompanyLogoRedesignacastmotorbasetoaweldedstructureCompanyLogoGuidestofabractionCompanyLogoGuidestofabractionCompanyLogoGuidestofabractionCompanyLogoGuidestofabractionCompanyLogoGuidestofabractionCompanyLogoGuidestofabractionCompanyLogoGuidestofabractionCompanyLogoGuidestofabractionCompanyLogoThedesignofweldjointFillet-weledjoint:Thefilletweld,requiringnogroovepreparation,isoneofthemostcommonlyusedweld.CompanyLogoGrooveandfilletCombinationsThedesignerisfreauentlyfacewiththequestionofwethertousefilletorgrooveweld.Herecostbeacomesamajorconsideration.CompanyLogoComparisonThroatAreaRatioa1.06t0.5625t*t1.884/tbt0.25t*t4/tct0.5625t*t1.77/tCompanyLogoCostnomographCompanyLogoFilletsizeCompanyLogoBackupStripsBakupstripmaterialshouldconformtothebasemetal.Shortintermittenttackweldsshouldbeusedtoholdthebackupstripinplace.CompanyLogoAllowableforweldCompanyLogoTHANKS.