机电英语课件 Chapter 2 Machining Operation

MachiningOperationCHAPTER2时间：202X.XLearningObjectives01030204recognizethewordsofmachiningtools,equipmentandtechniquestalkaboutdrawinghowtomachineaworkpieceelicittheinformationaboutusingtoolssafelydescribethefeaturesandapplicationsofAI-assistedmanufacturingLookandSayWarmingUpLookandMatchWarmingUpA.verniercaliper

B.fileC.hacksawD.dieE.millingcutterF.tableviceverniercaliperfilehacksawdiemillingcuttertableviceObserveandSayWhatarethesetoolsusedfor?WarmingUpLookandNameWarmingUpB.verticallatheH.verticalmachiningcenterC.verticalmillingmachineA.CNClatheB.verticallatheC.verticalmillingmachineD.centerlatheE.horizontalmillingmachineF.horizontalmachiningcenterG.five-axisCNCmachinetoolH.verticalmachiningcenterI.grindingmachineLookandNameWarmingUpD.centerlatheA.CNClatheF.horizontalmachiningcenterA.CNClatheB.verticallatheC.verticalmillingmachineD.centerlatheE.horizontalmillingmachineF.horizontalmachiningcenterG.five-axisCNCmachinetoolH.verticalmachiningcenterI.grindingmachineLookandNameWarmingUpA.CNClatheB.verticallatheC.verticalmillingmachineD.centerlatheE.horizontalmillingmachineF.horizontalmachiningcenterG.five-axisCNCmachinetoolH.verticalmachiningcenterI.grindingmachineE.horizontalmillingmachineG.five-axisCNCmachinetoolI.grindingmachineListenandChooseListening1.Whichmachiningprocessismainlyusedtocreatecylindricalparts?(

)MillingB.TurningC.DrillingD.Grinding2.Whatdoesmillingusetocreatevariousshapes?(

)A.Arotatingwork-pieceagainstacuttingtool.B.Arotatingcutter.C.Adrillingtool.D.Agrindingwheel.BBListenandChooseListening3.Thefinalsteptoachieveafinesurfacefinishisusuallywhichofthefollowingmachiningprocesses?()Turning.B.Milling.C.Drilling.D.Grinding.4.Thechoiceofmachiningprocessesdependsonseveralfactors.WhichofthefollowingisNOTmentionedasafactor?(

)A.Partshape.B.Partcolor.C.Material.D.Precisionneeds.DBListenandDecideListeningTurninginvolvesrotatingacuttingtoolagainstaworkpiece.()Drillingisusedtomakeholesintheworkpiece.()Machiningprocessesarealwaysusedindividually.()Thereareonly4machiningprocesses.()TTFFListenandFill

Machiningisvitalinmanufacturing.Turning___________awork-pieceagainstacuttingtoolforcylindricalparts.Millingusesarotating___________tocreatevariousshapes.Drillingmakesholes,and_____________achievesfinesurfacefinish.Combinationsoftheseprocessesarecommon.Forexample,apartmayfirstbeturned,then__________andfinallyground.Thechoicedependsonpartshape,____________,andprecisionneeds.ListeningrotatescuttergrindingmilledmaterialsReadaloudinpairsA:Hi,couldyoupleaseshowmehowtooperatethismachiningcenter?B:Sure!First,youneedtopoweronthemachine.Lookforthepowerbuttonoverthere.A:Okay,gotit.Thenwhat?B:Afterpoweringon,youshouldloadthework-pieceontotheworktablecarefullyandsecureitproperly.Usetheclampingdevicestoholditfirmly.A:Right.HowdoIsetthecuttingparameters?SpeakingReadaloudinpairsB:Well,youenterthecontrolpanelhere.Thereareoptionstosetthespindlespeed,feedingrate,andcuttingdepth.Youneedtoadjustthemaccordingtothematerialoftheworkpieceandtherequirementsofthemachiningtask.A:Isee.AndhowdoIstarttheactualmachiningprocess?B:Onceyou’vesetalltheparameterscorrectly,youjustpressthestartbuttononthepanel.Butmakesureeverythingisinplaceandsafebeforethat.A:Thankyousomuchforyourhelp!B:You’rewelcome.Remember,safetyalwayscomesfirstwhenoperatinganymachineryforanoperator.Goodluckwithyourmachine!SpeakingA:Hi,couldyoupleaseshowmehowtooperatethismachiningcenter?B:Sure!First,youneedtopoweronthemachine.Lookforthepowerbuttonoverthere.A:Okay,gotit.Thenwhat?B:Afterpoweringon,youshouldloadthework-pieceontotheworktablecarefullyandsecureitproperly.Usetheclampingdevicestoholditfirmly.A:Right.HowdoIsetthecuttingparameters?ReadandunderlineSpeakingReadandunderlineSpeakingB:Well,youenterthecontrolpanelhere.Thereareoptionstosetthespindlespeed,feedingrate,andcuttingdepth.Youneedtoadjustthemaccordingtothematerialoftheworkpieceandtherequirementsofthemachiningtask.A:Isee.AndhowdoIstarttheactualmachiningprocess?B:Onceyou’vesetalltheparameterscorrectly,youjustpressthestartbuttononthepanel.Butmakesureeverythingisinplaceandsafebeforethat.A:Thankyousomuchforyourhelp!B:You’rewelcome.Remember,safetyalwayscomesfirstwhenoperatinganymachineryforanoperator.Goodluckwithyourmachine!ReadandmakeaconversationOperatingaMillingMachineOperatingamillingmachinerequirescarefulsteps.Firstly,putonPPE(personallaborprotectequipment:helmet,safetyshoes,boilershirts,goggles,glovesandsoon)afterreadinginstructionmanualandattentionnotesorwarningsforthemachine.Then,turnonthepowerandletthemachineinitialize.Next,firmlyclamptheworkpieceonthetable.Setthespindlespeed,feedrate,andmillingdepthbasedonthematerialanddesiredcut.Beforestarting,double-checkallsettingsandthework-piece’ssecurity.Pressthestartbuttontobeginmilling.Oncethetaskiscompleted,stopthespindleandturnoffthepower.Remember,precisionandsafetyarecrucialthroughouttheoperation.SpeakingWords&ExpressionsWarmingupverniercaliper/'vɜːniə(r)'kælɪpə(r)/n.游标卡尺hacksaw/'hæksɔː/n.钢锯die/daɪ/n.模具；冲模；v.死亡millingcutter/'mɪlɪŋ'kʌtə(r)/n.铣刀tablevice/'teɪblvaɪs/n.台虎钳CNClathe/ˌsiːen'siːleɪð/n.数控车床centerlathe/'sentə(r)leɪð/n.普通车床millingmachine/'mɪlɪŋmə'ʃiːn/n.铣床machiningcenter/mə'ʃiːnɪŋ'sentə(r)/n.加工中心vertical/'vɜːtɪkl/adj.垂直的；直立的；n.垂直线horizontal/ˌhɒrɪ'zɒntl/adj.水平的five-axislinkage/'faɪv'æksɪs'lɪŋkɪdʒ/n.五轴联动grindingmachine/'ɡraɪndɪŋmə'ʃiːn/n.磨床Words&ExpressionsListeningandSpeakingmachining/məˈʃiːnɪŋ/n.机械加工；加工button/ˈbʌtn/n.按钮；纽扣；v.扣住；扣紧load/ləʊd/n.负载；负荷；工作量；v.装载；使担负parameter/pəˈræmɪtə(r)/n.参数；参量turning/ˈtɜːnɪŋ/n.转弯处；车工工艺；旋转workpiece/ˈwɜːkpiːs/n.工件operate/ˈɑːpəreɪt/v.操作；运转；经营；动手术operator/ˈɑːpəreɪtər/n.操作人员；接线员；经营者；（外科）手术执行者manual/ˈmænjuəl/adj.手工的；体力的；手动的；n.手册；指南；说明书spindle/ˈspɪndl/n.轴；纺锤；v.装锭子；长得细长feedrate/ˈfiːdreɪt/n.进给率；进料速度goggle/ˈɡɑːɡl/v.瞪大眼睛看；n.护目镜initialize/ɪˈnɪʃəlaɪz/v.初始化；预设clamp/klæmp/n.夹具；夹子；v.夹紧；固定precision/prɪˈsɪʒn/n.精确；精度；adj.精密的；精确的MachiningOperationCHAPTER2时间：202X.XLearningObjectives01030204recognizethewordsofmachiningtools,equipmentandtechniquestalkaboutdrawinghowtomachineawork-pieceelicittheinformationaboutusingtoolssafelydescribethefeaturesandapplicationsofAI-assistedmanufacturingReadingReadingAI-AssistedManufacturingInmoderntimes,artificialintelligence(AI)isplayinganincreasinglyimportantroleinmanufacturing.AIcandomanyhelpfulthingsinthemanufacturingprocess.Forexample,itcanusemachinelearningalgorithmstoanalyzealotofdatafromthefactory.Bydoingthis,itcanpredictwhenmachinesmightbreakdown.So,factoryworkerscanfixthemachinesbeforeabigproblemhappens.Thishelpstokeepproductiongoingsmoothly.ComputervisionisanothergreatapplicationofAIinmanufacturing.Itallowsthesystemtocheckproductsontheassemblyline.Itcanquicklyspotanyflawslikescratchesorincorrectparts.Thisway,onlygood-qualityproductsleavethefactory.RobotswithAIarealsoveryuseful.Theycandorepetitivetaskslikeputtingpartstogetherwithhighprecision.Theydon’tgettired,sotheycanworkforalongtimewithoutstopping.Thismakesproductionmuchfaster.Inshort,AI-assistedmanufacturingismakingfactoriesmoreefficientandtheproductsbetter.It’schangingthewaythingsaremadeinagoodway.ReadandDecideReadingAIisplayingalessimportantroleinmanufacturingnowadays.()AIcanusemachinelearningalgorithmstopredictmachinebreakdownsbyanalyzing.()ComputervisioninAI-assistedmanufacturingcanonlyidentifyscratchesonproducts.()RobotswithAIcanworkcontinuouslywithoutgettingtiredbuttheyarenotverypreciseindoingrepetitivetasks.()AI-assistedmanufacturinghasaprofoundimpactontheefficiencyoffactoriesandthequalityofproducts.()FTFFTReadandChoose1.WhatcanAIdotohelpinthemanufacturingprocessaccordingtothetext?()A.Itcanonlyanalyzedatafrommachines.B.Itcanpredictmachinebreakdownsandcheckproductquality.C.Itcanmakeproductswithoutanyflaws.D.Itcanreplaceallfactoryworkers.2.HowdoescomputervisioninAI-assistedmanufacturingwork?()A.Itonlychecksproductsaftertheyarefinished.B.Itcanspotflawslikescratchesandincorrectpartsontheassemblyline.C.Itmakesproductslookbetter.D.Itisusedtotrainfactoryworkers.BBReadingReadandChoose3.TheadvantageofrobotswithAIinmanufacturingisthat______.A.theygettiredeasilybutworkveryfast.B.theyaretooexpensivetobeusedwidely.C.theycandesignnewproducts.D.theycandorepetitivetaskspreciselyandworkcontinuously.4.WhatistheoveralleffectofAI-assistedmanufacturing?()A.Itmakesfactorieslessefficientandproductsworse.B.Ithasnosignificanteffectonmanufacturing.C.Itmakesfactoriesmoreefficientandproductsbetter.D.Itonlychangestheappearanceofproducts.DCReadingReadandMatchReadingApplication1.Predictingmachinebreakdowns2.Checkingproductqualityontheassemblyline3.PerformingrepetitivetaskspreciselyandcontinuouslyA.RobotswithAIcandorepetitivetaskslikeputtingpartstogetherwithhighprecisionandworkcontinuouslywithoutgettingtired.B.AIcanusemachinelearningalgorithmstoanalyzealotofdatafromthefactorytopredictwhenmachinesmightbreakdown.C.ComputervisioninAI-assistedmanufacturingallowsthesystemtocheckproductsontheassemblylineandcanquicklyspotanyflawslikescratchesorincorrectparts.DetailsReadandFillThemechanicuseda__________________tomeasurethediameterofthesmallmetalrodaccurately.Tocutthemetalpipeintoshorterpieces,hepickedupthe______________.Afterroughcuttingthemetalpart,heuseda____________tosmoothouttheedges.Thework-piecewasclampedtightlyinthe______________sothatitwouldn’tmoveduringthemillingprocess.The________________inthemillingmachinewasspinningatahighspeedtoremovetheexcessmaterialfromthework-piece.Thefactoryusesaspecial___________toproducehundredsofidenticalplasticpartswiththesameshape.

Writing1.verniercaliper,2.file,3.hacksaw,4.die,5.millingcutter,6.tablevice.verniercaliperfilehacksawdiemillingcuttertableviceReadandCompleteThemechanicisd_______aholeinthemetalplateforthebolttopassthrough.Heisusingadrillbit.Toshapethewoodenblockintoaspecificdesign,theyaregoingtouseamillingmachineform______.Thesurfaceofthemetalpartwasrough,sotheydecidedtodosomeg________tomakeitsmoothusinganabrasivebelt.Beforeassemblingthefurniture,theyneededtocutthewoodenplankstotherightlengthbys______.Tomakethewoodenboardflatandeven,thecarpenterusedaplaneforp__________.

WritingdrillingmillinggrindingsawingplanningReadandFill Inamachineshop,varioustoolsandoperationsareessentialforworkingondifferent______________(1).Thefirststepinmanymachiningtasksistoaccuratelymeasurethework-piece,andforthis,the_____________________(2)isacommonlyusedtool.Itallowsprecisedeterminationofdimensions.1Oncethemeasurementisdone,ifthetaskistocutapieceofmetalintoasmallersize,a(3)_______________mightbetherightchoice.Itssharpbladecansawthroughthematerialeffectively. Whenitcomestoshapingthework-piecebyremovingmaterialinarotationalmanner,theprocessof(4)_________iscarriedout.Here,thework-pieceisattachedtoamachineandmadeto(5)________whileacuttingtoolworksonit.

Writing1.milling;2.tablevice;3.die;4.materials;5.turning;6.hacksaw;7.verniercaliper;8.grinding;9.drilling;10.rotatematerialsverniercaliperhacksawturningrotateReadandFill Tocreateflatandsmoothsurfacesonthework-piece,theoperationof(6)__________isoftenemployed.Asuitablecuttingtoolisusedinthisprocesstograduallyremovetheexcessmaterial. Toholdthework-piecefirmlyinplaceduringtheseoperations,a(7)_______________isused.Itgripsthework-piecetightly,ensuringstabilityduringmachining. Aftertheinitialshaping,tofurtherrefinethesurfaceandmakeitsmoother,theoperationof(8)____________isapplied.Thisinvolvesusingabrasivetoolstopolishthesurface. Ifthetaskrequiresmakingholesinthework-piece,theprocessof(9)____________isused.Andwhenitcomestocreatingthreadsonarodorbolt,a(10)____________isneeded.

Writing1.milling;2.tablevice;3.die;4.materials;5.turning;6.hacksaw;7.verniercaliper;8.grinding;9.drilling;10.rotatemillingtablevicegrindingdrillingdieTalkandPracticePracticingTalkaboutthefollowingscenariosinseveralsentencesbyusingthesentencepatternsgiven.Couldyoushowmehowto...?First,youneedto...After...,youshould...Isee.AndhowdoI...Safetyalwayscomesfirstwhenyou...Practicemakesperfect.Themore...,the......needtofocuson...It’salsoimportantfor....tobecareful/persistent/cooperative.Youmayuse:TalkandPracticePracticingTalkaboutthefollowingscenariosinseveralsentencesbyusingthesentencepatternsgiven.A:CouldyoushowmehowtomakethissteelNezhafigure?B:Sure.First,youneedtodesignthe3DmodelofNezhaonthecomputer.Then,inputthedataofthemodelintothemachinethefive-axislinkagetechnology.Afterthat,selectthepropersteelmaterial.Youshouldadjusttheparametersofthemachineaccordingtothematerial’sproperties.A:Isee.AndhowlongdoesittaketomakesuchasteelNezha?B:Itdependsonthematerialandcomplexity.Itmighttakeabout20hoursforawoodenproduct,andforthissteelone,itprobablytakesaround30hours.A:Well,canthisfive-axislinkagetechnologybeusedforotherthings?B:Certainly.It’swidelyusedinmakin