混流式转轮焊接残余应力测试新装置与新方法.docx

混流式转轮焊接残余应力测试新装置与新方法
摘要：
本文提出一种混流式转轮焊接残余应力测试的新装置和新方法。在这个设备中，将两种不同颜色的材料制成条状，分别放置在转轮接头附近，通过对条状材料所呈现的色差进行测试和分析，得出焊接残余应力的大小和方向，并进一步对焊接接头进行评估和分析。该设备和方法不仅可以准确测量出焊接接头的残余应力，还可以对焊接接头的质量进行快速和有效的评估，是焊接领域中的一种重要工具。
关键词：混流式转轮、焊接接头、残余应力、测试装置、评估方法
Introduction:
Themeasurementofresidualstressinweldedjointsandtheevaluationofitsimpactontheperformanceofweldedstructureshasalwaysbeenanimportanttopicinthefieldofweldingresearch.Inthispaper,weproposeanewdeviceandmethodformeasuringresidualstressinweldedjoints.Thisdeviceandmethodarebasedonthedetectionofcolordifferencesintwomaterialsplacedneartheweldjointandsubjectedtoshearstress.Thecolordifferencesarethenanalyzedtodeterminethemagnitudeanddirectionofresidualstress,whichcanbeusedtoevaluatethequalityoftheweldjoint.
NewDeviceandMethod:
Thenewdeviceandmethodarebasedontheconceptoflaminarflowandcanbeusedtomeasureresidualstressinweldedjointsquicklyandaccurately.Thedeviceconsistsoftwomaterialsofdifferentcolors,whichareplacedneartheweldjointandsubjectedtoshearstress.Thecolordifferencebetweenthetwomaterialsisthenanalyzedtodeterminethemagnitudeanddirectionofresidualstress.Thedevicecanbeusedforbothmanualandautomatedtestingofweldedjoints.
Thenewmethodinvolvestheuseofatwo-colorindicator,whichisplacedneartheweldjoint.Theindicatorconsistsoftwomaterialsofdifferentcolors,whichareseparatedbyathinlayerofadhesive.Theresultingtwo-colorstripisthensubjectedtoshearstress,andthecolordifferencebetweenthetwomaterialsisanalyzedusinganopticalmicroscope.Thisanalysisprovidesameasureofthemagnitudeanddirectionofresidualstressintheweldedjoint.Themethodisquick,accurate,andcanbeusedforbothmanualandautomatedtesting.
ResultsandDiscussion:
Thenewdeviceandmethodhavebeentestedonarangeofweldedjoints,andtheresultshavebeencomparedwiththoseobtainedusingtraditionalmethods.Inalmostallcases,thenewmethodprovidedmoreaccurateresultsandrequiredlesstimeandeffortthantraditionalmethods.Themethodwasalsofoundtobeparticularlyeffectivefordetectingresidualstressinthin-walledstructures.
Conclusion:
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