LD2铝合金钎焊接头缺陷研究

LD2铝合金钎焊接头缺陷研究Title: Defect Analysis in LD2 Aluminum Alloy Brazed JointsAbstract:Brazing is a widely

LD2 铝合金钎焊接头缺陷研究 Title:DefectAnalysisinLD2AluminumAlloyBrazedJoints Abstract: Brazingisawidelyusedmethodforjoiningaluminumalloys duetoitsadvantagesinproducingstrongandreliablejoints. However,thepossibilityofdefectsinbrazedjointscanhamper theirmechanicalintegrityandperformance.Thisstudyaimsto investigatethedefectscommonlyfoundwithinLD2aluminum alloybrazedjoints,identifytheircauses,andexplorepossible preventivemeasures. 1.Introduction 1.1Background 1.2AimoftheStudy 2.LiteratureReview 2.1OverviewofBrazingProcess 2.2OverviewofLD2AluminumAlloy 2.3CommonDefectsinAluminumAlloyBrazedJoints 2.3.1Porosity 2.3.2IncompleteJointPenetration 2.3.3IntermetallicFormation 2.3.4ThermalStressCracking 3.Methodology 3.1MaterialSelection 3.2BrazingProcedure 3.2.1ParameterOptimization 3.2.2SamplePreparation 3.2.3BrazingProcessControl 4.ResultsandDiscussion