外文翻譯--智能CADCAM和注入成型.docVIP

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：制造結構。我們已制成的模具結構從一塊1/2x3鋁平面插入，因而它能用于注塑模。你設計的結構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，然后孔被擴到1-1/2。這可以由車床或銑床鉆刀完成。注意到零件結構將使關鍵一環(huán)通過其突出部位來完成。關鍵詞：CADCAM注塑成型注射成型需要用精密模具制造產品。在過去，制造注射模具可能要遠離教學平均水平等級，為了抵抗溫度在其間影響注射模，機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)的教導用具，但是不允許學生自由使用這些模具?，F(xiàn)在CAD/CAM已成為在設計中重要的工具，很多數(shù)學校把它作為教學大綱中的一部分。尚有學校面臨著開展這些工具課的實用性問題，實用性使得學生允許他們接受新知識技能。我們已開展一項學生喜歡的運用CAD/CAM技能制造注射模來生產產品的概念工程。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。鋁制模具上的插入孔底面必須平整而且直徑