外文翻譯--智能CADCAM和注入成型.doc

附錄AIntegratingCAD/CAMandinjectionmoldingRichardBuxton.（AnnArbor:Oct2000.Vol.60,Iss.3；pg.18,2pgs）Abstract:Makingaframe.Wemadeamoldframefromapieceof1/2x3aluminumflattoplacetheinsertinsoitcanbeusedintheinjectionmolder.Yourframemayneedtobeadifferentsize,dependingonthesizeofmoldusedinyourmolder.Wedrilleda1hole,andthisholewasopenedto1-1/2byboring.Thismaybedoneonalatheormillingmachinewithaboringbar.Noticethepartoftheframethatwillmakethetabthatakeyringwillgothrough.Keywords:CADCAMInjectionmoldingInjectionmoldingrequiresprecisionmoldstomakeaproduct.Inthepast,makinginjectionmoldswentbeyondthescopeofwhattheaverageTechEdclasscoulddo,duetoalackofmachiningequipmentandbecausemoldsmustbemadeofmetalinordertowithstandthetemperaturesthatoccurduringinjectionmolding.AlthoughvendorssellinjectionmoldsusedintabletopmoldersfoundinmanyTechEdfacilities,thesemoldsdonotallowstudentstopersonalizethem.NowthatCAD/CAMhasbecomeanimportanttoolindesign,manyschoolsteachitaspartoftheirTechEdprograms.Yetschoolshavefacedtheproblemofdevelopingreal-worldapplicationsforthesetools,applicationsthatallowstudentstoapplytheirnewfoundskill.WehavedevelopedaprojectcenteredontheconceptofusingCAD/CAMskillstomakeaninjectionmoldtoproduceaproductthatstudentslike,inawaythatmirrorstheprocessinindustry.Insteadofmakingtheentiremold,studentsmakeapersonalizedinserttoplaceinamold.Weusea1/4sliceof1-1/2-diaaluminumrodtomaketheinsertforapersonalizedkeyfob.WepurchasedaI-1/2x86061Sourcetype:：PeriodicalISSN/ISBN：07487711ProQuestdocumentID：62923754aluminumrod(7075aluminumiseveneasiertomachine)andusedametalcuttingbandsawtocutoffpiecesabout3/8thick.Placingapieceinathreejawchuckinametallathetruesoneface.Becausethesliceisthin,itisdifficulttoseetheothersideofthealuminuminsertsothatthetwofacesareparallel.Toalleviatethis,wemadeaholderthatallowsstudentstomountthealuminumpiecesothatthetruedsideispushedtothebackoftheholderandheldinplacewithsetscrews.Inthisway,theotherfacecanbecutparallelwiththeoneheldflushtothebackoftheholder.Makingtheholder.Theholderwaseasilymadefromapieceofcut-offsteel.Thestemcanbeanysize,aslongasitfitsinthelathesthreejawchuck.Theholeforthealuminummoldinsertmustbeflat-bottomedand1-1/2india.Wedidthisbydrillinga1/2holeinthemiddle-justlargeenoughtogetaboringbarinto-andboredaflatbottomedholetoadepthof1/4and1-1/2indiameter.Wedrilledandtappedtwoholesfor10-32setscrewsusedtoholdtheinsertinplacewhiletheywerebeingmachined.Makingaframe.Wemadeamoldframefromapieceof1/2x3aluminumflattoplacetheinsertinsoitcanbeusedintheinjectionmolder.Yourframemayneedtobeadifferentsize,dependingonthesizeofmoldusedinyourmolder.Wedrilleda1hole,andthisholewasopenedto1-1/2byboring.Thismaybedoneonalatheormillingmachinewithaboringbar.Noticethepartoftheframethatwillmakethetabthatakeyringwillgothrough.Thistabwasmachinedintheframebyanend-millcutteronamillingmachine.Thesizeisuptoyou.Youmustmillasprueorgateinthemoldtoallowfortheinjectionofmoltenplastic,whichmaybedonewitha1/8ball-nosedmillingcutter.Ifyoudonothavetheequipmenttomaketheframe,andperhapsmystudentscanhelpyouout.Makingthefob.Nextcomesdesigningandmachiningthemoldinsertforthefob.Ifyouhaveadesignsequenceyouwantyourstudentstogothrough,useithere.Mystudentshavemadetokensandkeyfobs.Theycovereverythingfromsportslogostofobswithnamesandnumbersonthem.Oncestudentsdeterminetheirdesign,theymustdrawit.Manysoftwarepackagescanbeusedforthis.Atourschool,studentsdothisinoneofseveralways.OnewayistodrawthedesigninAutoSketch,exportitasadfxfile,andusethisinBobCADtowritethecode.TheycanthenrunitonaBridgeportcloneusingAhHaCAMsoftware.Anotherpopularmethodusesasmallerbenchtopsystem.OursystemusesMasterCAMandQuickParttorunaTechno-IselMill.ThesemachinesmakeitpossibletorunaI/8ball-endmilltoadepthof0.020,whichworkswellformakingtheinsert.Besuretomachineamirrorimage,sincethisisamold.Onceastudenthasmilledtheinsert,placeitintheframe.Youwillneedanothermoldhalfinadditiontoyourframe.Weusedtheflatbackofanothermoldwehadhandybuteventuallymadeupaflatbackjustforthisproject.Usingthebackofanothermoldensuresthatthespacingwillcorrectlyalignwiththenozzleofthemolder.Westartedwitha3/8-thickinsert,butbythetimewemachinedsmoothbothsides,theinsertwasusuallyabout1/4thick.Thismeansthatthefobwillbeabout1/4thick.Ifthemoldertemperatureistoohigh,thefobmightshrink.Toeliminatethisproblem,eitherlowerthetemperatureofthemolderormakeaslightlythickerinsert.WehavefoundthatlinkingCAD/CAMdesigntotheinjectionmoldingoperationhashelpedstudentsseetheconnectionbetweenadesigntoolandactualproduction.Thefactthatitallowsstudentstopersonalizetheirworkmakesthemotivationintrinsic,whichalwaysmakesitbetterforall.References:1.GaleNF.Dieselerminecylinderheaddesinn:ThecompromisesandthetechniquesRSAE900133.1990.2.LiMingyu.TheestablishandmanagementofstandardsolidworkspartslibrarybasedonconfigurationJ.ModernManufacturingEngineering,2003,(9):2729.3HuYigang.ParametricprogrammingmethodofconstructionhydrauliccylinderJ.MachineTool&Hydraulics,2002,(6):147149.智能CAD/CAM和注入成型理查德布克斯特摘要：制造結(jié)構(gòu)。我們已制成的模具結(jié)構(gòu)從一塊1/2x3鋁平面插入，因而它能用于注塑模。你設(shè)計的結(jié)構(gòu)可能需要不同的尺寸，依靠在你的鑄模中使用的模塊的尺寸。我們鉆了1孔，然后孔被擴(kuò)到1-1/2。這可以由車床或銑床鉆刀完成。注意到零件結(jié)構(gòu)將使關(guān)鍵一環(huán)通過其突出部位來完成。關(guān)鍵詞：CADCAM注塑成型注射成型需要用精密模具制造產(chǎn)品。在過去，制造注射模具可能要遠(yuǎn)離教學(xué)平均水平等級，為了抵抗溫度在其間影響注射模，機(jī)器裝備的缺乏和模子必須是金屬材料制成的。雖然賣主出售注射模用于桌面作業(yè)的模工容易地發(fā)現(xiàn)多數(shù)的教導(dǎo)用具，但是不允許學(xué)生自由使用這些模具?，F(xiàn)在CAD/CAM已成為在設(shè)計中重要的工具，很多數(shù)學(xué)校把它作為教學(xué)大綱中的一部分。尚有學(xué)校面臨著開展這些工具課的實用性問題，實用性使得學(xué)生允許他們接受新知識技能。我們已開展一項學(xué)生喜歡的運(yùn)用CAD/CAM技能制造注射模來生產(chǎn)產(chǎn)品的概念工程。某種程度上仿照工業(yè)規(guī)程。代替制造完整的模具，學(xué)生們在模具中放入了修改修改化理念。我們使用1/4的薄片1-1/2-dia鋁桿來制造出嵌入了個性化的鑰匙扣。我們買I-1/2x86061鋁桿(7075鋁對機(jī)器來說很容易加工)以及使用金屬切削帶鋸鋸到切斷塊3/8厚度。放置于金屬車床三爪卡盤上成為一個平面。因為薄片很薄,很難看到鋁的另一邊的插入，所以兩面是平行的。為了使它減輕，我們制成一個固定器來讓學(xué)生們裝夾鋁塊致使正面被推到固定器的背面，讓其有位置裝置螺絲釘。這樣，另一面能通過推平從而減切成平行面。制造固定器。固定器可以很容易的通過切割一塊鋼板來制成，桿的尺寸可以任意長短，和車床三爪卡盤相適應(yīng)。鋁制模具上的插入孔底面必須平整而且直徑