三辊轧管机无芯棒轧制工艺分析

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1、万方数据ABSTRACTAsselrollingmillwithhigh—precision，expandingitsproductrangeisthemainpurposeofdevelopmentit．ButAsselrollingmillonlyproductformiddleandlargesizethin-walledtube．Andwhenproductthin—walledtube，itiseasytooccuraseriesofproblems，suchas“tubetailtriangle”，“rollingcrackandstoppingst

2、eeltube”，lowerproductionefficiency．So，thispaperusesrollingprocesswithoutmandrel，basedonformerAsselrollingmill，forthepurposetoimprovetherollingprocess，andsatisfywiththesmallsizetubeproductionrequirements．Basedonthereasonablerollingprocessbyexperimenttest，it’Sgoingtodofurtherstudyontha

3、tfeedanglehowtoeffectproductionefficiencyandrollingforce，preliminaryexplorationwithoutmandrelskewrollingprocessrollingforcecalculationmodel，metalflow，stresschange，plasticdeformation，etc．Thissubjectmainlysetabouttothefollow：First，useMarcfiniteelementanalysissoftwaresimulationrollingpr

4、ocesswithoutmandrel，optimizerollingprocessparameter，meetlargerproductionsizerequirementstoreducediameter。Second，throughthefiniteelementsoftwarepreliminarilydeterminedexperimentalparameters，andthanusingtheexperimentresulttotestthesimulationresultandtheorycalculationresultwithrollingfo

5、rceandmoment．Finallyreallyfindtherollingforceandmomenttheorycalculationformulassuitableskewrolling，breakthroughthelimitationsoflongitudinalrollingformulahavebeenused．Three，throughthetest，regressiontoresearchthesimulatedanalysisresultsoffeedanglehowtoeffectrollingstress，circumferentia

6、landaxialrollingspeedandslidingcoefficient，rollingforceandrollingmoment．EspeciallyforincomparisonAsselrollingtubereducingmillcircumferentialandaxialslidingcoefficientcurvetobucketrollerslidingcoefficientcurve．BasedonTheexperimentalresults，theoryandsimulationanalysis，optimizingskewrol

7、lingprocess．11I万方数据三辊轧管机无芯棒轧制工艺分析Keywords：Skewrolling；Withoutmandrel；Smal1dimensiontube；Thinwalledtube；Feedangle；Slidingcoefficient；Rollingforceandmornent．万方数据目录第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1本论文课题研究背景及意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11．1．1国#I'lL管机的发展⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．1．2国内三辊轧机的发展⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．51．1．3

8、阿塞尔轧管机的优缺点⋯⋯