机电英语课件 Chapter 2-1 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