超薄板材拉深成形的數(shù)值模擬分析.pdf

1、浙江理工大學(xué)碩士學(xué)位論文超薄板材拉深成形的數(shù)值模擬分析姓名：劉普襄申請(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：李湘生20110321浙江理工人學(xué)碩士學(xué)位論文NumericalSimulationanalysisforStamp—formingprocessofultrathinsheetmetalAbstractStampfomlingprocessforsheetisoneoftheimportantmethodsinthef

2、0舯ing，anditoccupiesaVe巧imponantpositioninthemanufacturingindust叮Ito脅insrequiredshapeofworkpiecebyusingthemademouldor0therequipment111isprocessmethodpossessesmanyadVantages，whicharehighmaterialutilization鋤dlowprocessingco

3、standhi曲pe—bmance粕dhighe銜ciency鋤dsoonHo、ⅣeVer，thisprocessmethodtakesonSomedisadVa玎tagegraduaIlyalongwithhighrefreshspeed礬dshortmanufacturingcycleandlowprocesscostofproductsresultedflromtechnolog)rdeVelopingattopspeedinCA

4、D／CAM／CAE，such豁spendingtoomuchtimeondebugging踟drepairingadieduringthewholecycIeofmould1nthepaper，numericaIsimuIation鋤alysisforstampfo硼ingprocessiscarriedonbytheflniteelementsimulationbasedonresearchfortmditionaIprocessof

5、sheetTheStrain卸dVariationinthicl(nessofsheetareunderstoodinthe∞unda‰rprocessing，鋤dm鋤yprocessdrawbacl(SofsheetwillbeforecaStedaRerStamp—fomlingprocess，whichincludeswrinkles鋤dtensionfhctureandsofonh1nfluenceofprocessparame

6、ters觚dmechanicparameterSonprocessedfⅢitcouldbesimulatedandanaIyzedbythecomputerOptimaIizingfo冊(cè)ingparametersarcalsoobtained，whichpr0ViCIesbasesandmethodsformakingthestampf0訂ningprocessandnumericalsimulation卸alysisoful仃ath

7、insheet，鋤dmakesthecycleofmoulddesigningandmanufacturingshortened，卸dmakesthequalityofmouIdimproVedChapteronebroughtoutthesignificanceofstudyingthisprojectandkeytechnolog)，applied鋤dsomeexistingproblemquestionsonthebaScof徹a

8、lyzingthebackgroundrelatedt0stamp—fonningandnumericalsimulationtechnology，andthenraisedthemainreSearchcontentsforthepapcrChaptertwodiscussedthebasictheoriesofnum喇calsimulationcomputationOnthatbasis，dynamicexplicitalgorit