版權(quán)說明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請進(jìn)行舉報(bào)或認(rèn)領(lǐng)
文檔簡介
1、湖南大學(xué)碩士學(xué)位論文空心型材擠壓過程數(shù)值模擬及模具結(jié)構(gòu)優(yōu)化研究姓名:何芯申請學(xué)位級別:碩士專業(yè):材料加工工程指導(dǎo)教師:李落星黃長清20100408空心型材擠壓過程數(shù)值模擬及模具結(jié)構(gòu)優(yōu)化研究AbstractExtrusiondieplaysaVitalroleinextrusionprocessingindustryThequalityandservicelifeofextrusiondiearekeyfactorsthattodeter
2、minethefeasibleofextmsionprocessanddeVelopmentofnewproductPonholedieisonekindofextmsiondietoproducehollowprofile,anditsstmcturalpar鋤etersdirectlyaf!fectthequalityofproductsDuetothecomplexshapeofproductandhighextmsionpres
3、sure,theportholediecouldbed鋤agedeasilyTheref0re,toensureproductqualityandimproveitsservicelife,therationaldesignshouldbeconsiderforextmsiondieInthispaper,thesoRwarcHyperXtmdewouldbeadoptedtosimulationtheextmsionprocessin
4、gf0rhoHowprofileandobtainedthesimulationresultsThefirstcasestudyaddressedapracticalproblemofwallthicknessattenuationduringextrusiontoproduceacomplexthin—walledhollowAZ6lmagnesiumprofileAHyperWrorksFEMsoRwarepackagewasemp
5、loyedtoaidinidentifyingthecausesforthewaUthicknessattenuationThereareanumberofknownmeasuresthatmaybetaketolessenoreliminatenonunifo姍materialnowduringtheextrusionprocess,includingthemodificationoftheshape,sizeandlocationo
6、ffeederportsandweldingchamberandtheadjustmentoflocalbearinglengthsFiVeadjustmentstooptimizethestructureofportholediewereproposed,suchastherestrictiVeblock,theheightandshapeofweldingchambefandtheinterspacingbetweenthemand
7、relsThewallthicknessoftheextmda『tepredictedusingFEMsimulationwasveryclosetoexperimentalmeasurementsComparingthefiVeadjustmentsforextrusiondie,adjustingtheshapeofpoIrtholecouldbalancethemetalnowandpressweU,thuscanincrease
8、thewallthicknessAtthesametime,thesecondcasefor6063aluminiumalloyhollowprofilewasinVestgatedbythesoRwareHyperXtrude,tooAlsostudiedthemetalnowindifferentdirectionsandthepressuredistributionofweldingroomThereasonfordefectsw
9、asmetalflowofdifferentdirectioninthecrosssectionTheadiustmentwastherestrictiveblockThesimulationresultsshowedthattherestrictiveblockcouldminimizetheVelocitydiffbrenceinsidetheprofile,socandecreasethephenomenonofconcaveCo
10、mparingwiththeactualextrusionprofiles,thefomingoftheprofileconcaveamendedbytherestrictiveblockThesimulationresultsdemonstratedthefeasibilityofusingFEMsimulationasausefIultooltosolveindustrialproblemsencounteredintheprodu
溫馨提示
- 1. 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
- 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
- 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽,若沒有圖紙預(yù)覽就沒有圖紙。
- 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
- 5. 眾賞文庫僅提供信息存儲空間,僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對任何下載內(nèi)容負(fù)責(zé)。
- 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請與我們聯(lián)系,我們立即糾正。
- 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。
最新文檔
- 鋁型材擠壓過程數(shù)值模擬及擠壓模具結(jié)構(gòu)參數(shù)優(yōu)化研究.pdf
- 復(fù)雜鋁型材擠壓過程數(shù)值模擬及模具結(jié)構(gòu)優(yōu)化.pdf
- 門企鋁型材擠壓過程數(shù)值模擬及模具結(jié)構(gòu)優(yōu)化研究.pdf
- 空心鋁合金型材擠壓過程數(shù)值模擬及模具優(yōu)化方法研究.pdf
- 帶長懸臂結(jié)構(gòu)空心截面鋁型材擠壓過程數(shù)值模擬及模具-工藝優(yōu)化.pdf
- 鋁型材擠壓過程數(shù)值模擬及模具參數(shù)優(yōu)化研究.pdf
- 鋁型材擠壓過程數(shù)值模擬及模具參數(shù)優(yōu)化.pdf
- 鋁型材正擠壓成型過程數(shù)值模擬及模具結(jié)構(gòu)優(yōu)化研究.pdf
- 空心異型鋁型材擠壓過程數(shù)值分析及模具工作帶優(yōu)化研究.pdf
- 鋁型材擠壓過程模擬及模具優(yōu)化設(shè)計(jì).pdf
- 鋁型材擠壓過程數(shù)值模擬及模具設(shè)計(jì).pdf
- 鋁型材擠壓成型數(shù)值模擬與模具結(jié)構(gòu)優(yōu)化設(shè)計(jì)研究.pdf
- 空心異型鋁型材分流熱擠壓過程數(shù)值分析與優(yōu)化設(shè)計(jì).pdf
- 鋁合金型材擠壓過程的數(shù)值模擬研究.pdf
- 空腹鋁型材擠壓過程的數(shù)值模擬.pdf
- 薄壁鋁型材擠壓過程仿真及模具優(yōu)化設(shè)計(jì).pdf
- 鋁合金擠壓的數(shù)值模擬及模具結(jié)構(gòu)優(yōu)化.pdf
- 鋁型材壁板擠壓模具結(jié)構(gòu)優(yōu)化設(shè)計(jì)研究.pdf
- 基于OpenFOAM的鋁型材熱擠壓過程數(shù)值模擬研究.pdf
- 復(fù)雜鋁合金型材擠壓過程數(shù)值建模與模具優(yōu)化設(shè)計(jì)方法研究.pdf
評論
0/150
提交評論