電擊法消除殘余應(yīng)力相關(guān)問題的研究.pdf

1、浙江大學(xué)機(jī)械工程學(xué)系碩士學(xué)位論文電擊法消除殘余應(yīng)力相關(guān)問題的研究姓名：施彥彬申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械制造及其自動(dòng)化指導(dǎo)教師：何聞20100315浙江大學(xué)碩士學(xué)位論文ABSTRACTThedissertation，whichwassponsoredbytheNaturalScienceFundofChina“ResearchonElectricShockMethodforResidualStressReliefandItsApplic

2、ation(No50675200)”，targetedseveralissuesinthetechniquesofresidualstressreliefbyelectricshockmethodInchapterone，theresearchbackgroundandsignificanceofthedissertationwaspresentedfirstThenthedomesticandforeignresearchstatus

3、wasintroduced，whichincludedeffectofelectricpulsecurrentonmicro—structureofmaterial，techniqueformeasuringresidualstressandthehighpowerelectricpulsetechnologyFinallytheresearchcontentandresearchmethodsinthedissertationwere

4、addressedInchaptertwo，theresistanceanddriveforthemobilityofdislocationwerepresented，andthemechanismofresidualstressreliefbyelectricshockmethodwasaddressedwhereresidualstresscouldbereducedbyreducingamountofdislocationwhen

5、thedrivewasgreaterthanresistance，Inchapterthree，theprincipleofblindholemethodformeasuringresidualstresswasfirstintroduced；then，basedontheprincipleforcalibratingthestrainreleasecoefficients，thestrainreleasecoefficientsbyf

6、initeelementanalysisWassimulativelycalibratedSOtheformulaeformodifyingthestrainreleasecoefficientsofplasticmaterialWasproposed，F(xiàn)inallythevaliditywasverifiedInchapterfourtheseveralpartsinthedeviceforgeneratingtheelectricp

7、ulsecurrentwaspresented，whichconsistedofequipmentforstoringelectricalenergyswitchesforelectropulsecurrent，electric—pulse—currentgeneratedcircuit，automaticswitch—controlledcircuitandmeasuringsystemforelectricpulsecurrentI

8、nchapterfive，theexperimentofresidualstressreliefbyelectricshockmethodWaspresentedwhichshowedthattheresidualstresswithintheworkpiecesdeclinedapparentlyaftertheelectricpulsecurrent’StreatmentItprovesthattheresidualstressre