初級(jí)模具試題及答案英語

一、單項(xiàng)選擇題（每題2分，共20分）1.Whatisthemainfunctionofamold?A.ToshapematerialsB.ToheatmaterialsC.TocutmaterialsAnswer:A2.Whichmaterialiscommonlyusedformakingmolds?A.WoodB.PlasticC.SteelAnswer:C3.Theprocessofinjectingmoltenmaterialintoamoldiscalled_.A.BlowingB.MoldingC.CastingAnswer:B4.WhatdoesCADstandforinmolddesign?A.ComputerAidedDrawingB.ComputerAidedDesignC.ComputerAidedDraftingAnswer:B5.Theclearancebetweenthemoldcavityandthepartiscalled_.A.ShrinkageB.ToleranceC.DraftangleAnswer:B6.Whichtoolisusedtomeasurethedimensionsofamold?A.HammerB.VerniercaliperC.ScrewdriverAnswer:B7.Whatisthepurposeofadraftangleinamold?A.TomaketheparteasiertoejectB.ToincreasethestrengthofthepartC.ToimprovethesurfacefinishAnswer:A8.Theprocessofremovingthepartfromthemoldiscalled_.A.EjectionB.CoolingC.TrimmingAnswer:A9.Whichofthefollowingisatypeofmold?A.InjectionmoldB.ForgingmoldC.BothAandBAnswer:C10.Inmoldmaking,whatistheroleofasprue?A.ToholdthemoldtogetherB.ToallowthemoltenmaterialtoenterthemoldC.TocoolthepartAnswer:B二、多項(xiàng)選擇題（每題2分，共20分）1.Commonmoldmanufacturingprocessesinclude_.A.MachiningB.CastingC.WeldingD.3DprintingAnswer:ABCD2.Factorstoconsiderinmolddesignare_.A.PartshapeB.MaterialpropertiesC.ProductionvolumeD.CostAnswer:ABCD3.Typesofmoldmaterialsare_.A.AluminumB.CopperC.CarbideD.BrassAnswer:ABCD4.Toolsusedinmoldmaintenanceare_.A.FileB.GrindingwheelC.DrillD.MeasuringinstrumentsAnswer:ABCD5.Thefunctionsofamoldbaseare_.A.TosupportthemoldcavityB.ToprovidecoolingchannelsC.TofacilitatemoldinstallationD.ToprotectthemoldAnswer:ABC6.Whataffectsthequalityofmoldedparts?A.MoldtemperatureB.InjectionpressureC.CoolingtimeD.MaterialqualityAnswer:ABCD7.Whichoperationsmaybeinvolvedinmoldfinishing?A.PolishingB.PlatingC.HeattreatmentD.HoningAnswer:ABD8.Safetyprecautionsinmoldmanufacturinginclude_.A.WearingsafetyglassesB.UsingpropertoolhandlingtechniquesC.KeepingtheworkareacleanD.RegularequipmentmaintenanceAnswer:ABCD9.Featuresofinjectionmoldsare_.A.SpruesystemB.CoolingchannelsC.EjectionmechanismD.CavityinsertsAnswer:ABCD10.Inmoldrepair,thestepsmayinclude_.A.DamageinspectionB.PlanningtherepairmethodC.PerformingtherepairD.TestingafterrepairAnswer:ABCD三、判斷題（每題2分，共20分）1.Moldsareonlyusedinplasticmanufacturing.(False)2.Ahigherdraftanglealwaysmakesejectioneasier.(True)3.Steelistheonlysuitablematerialformolds.(False)4.CADisnotnecessaryforsimplemolddesign.(False)5.Thecoolingtimehasnoimpactonthequalityofthemoldedpart.(False)6.Amoldbaseisanoptionalpartofamold.(False)7.Usingawrongtoolwillnotcauseanyprobleminmoldmanufacturing.(False)8.Injectionmoldsanddie-castingmoldshavesomesimilaritiesinstructure.(True)9.Thereisnoneedtomaintainmoldsiftheyarenew.(False)10.Thetoleranceofamoldhasnorelationtothequalityofthefinalproduct.(False)四、簡答題（每題5分，共20分）1.Question:Whatarethebasicstepsinmolddesign?Answer:First,understandthepartrequirements.Then,selecttheappropriatemoldtypeandmaterial.Next,designthecavity,runner,coolingchannels,andejectionmechanism.Finally,performdetailedcalculationsandmake2D/3Ddrawings.2.Question:Whyiscoolingimportantinmoldmanufacturing?Answer:Coolinghelpstosolidifythemoltenmaterialinthemoldquicklyanduniformly.Thisensuresthepartmaintainsitsshape,reducesshrinkage,andimprovesthesurfacefinish.Italsoshortenstheproductioncycle.3.Question:Whatarethecommondefectsinmoldedparts?Answer:Commondefectsincludeshrinkagemarks,warping,flash,porosity,andpoorsurfacefinish.Thesecanbecausedbyfactorslikeimpropercooling,highinjectionpressure,orincorrectmolddesign.4.Question:Howtochoosetherightmoldmaterial?Answer:Considerfactorssuchasthetypeofmaterialtobemolded,productionvolume,requiredmoldstrengthandwearresistance,heatresistance,andcost.Forhigh-volumeproductionofhardmaterials,steelmightbeagoodchoice.五、討論題（每題5分，共20分）1.Question:Discusstheimpactofnewtechnologieslike3Dprintingonmoldmanufacturing.Answer:3Dprintingallowsforrapidprototypingofmolds,reducingleadtimes.Itenablescomplexgeometriesthataredifficulttomachineconventionally.Italsoreduceswasteasitisalayer-by-layeradditiveprocess.However,itmayhavelimitationsinmaterialpropertiesandlarge-scaleproduction.2.Question:Howcanweimprovetheefficiencyofmoldmanufacturing?Answer:UseadvancedCAD/CAMsoftwareforaccuratedesignandprogramming.AdoptautomatedmachiningprocesseslikeCNCmachines.Optimizethemolddesigntoreduceunnecessaryoperations.Also,improvetheworkflowandcommunicationamongdifferentdepartmentsinvolvedinmoldmanufacturing.3.Question:Talkabouttheimportanceofmoldmaintenance.Answer:Regularmaintenanceensuresthemold'slong-termperformance.Ithelpstopreventwearandtear,reducestheoccurrenceofdefectsinmoldedparts,andextendsthemold'slifespan.Thisinturnreducesproductioncostsanddowntimeduetomoldfailures.4.Question:Whatchallengesmightabeginnerfaceinlearningmoldmanufacturing?Answer:Beginnersmay