機械制造類專業英語CommonProcessingTechnologyandCasesModuleIIAdvancedManufacturingProcessandCasesSceneOneCommonProcessingTechnologyandCasesTask1CommonProcessingTechnologyLookatthefollowingwordswemayuseinthissceneandmatchtheEnglishandChinesemeaning.cavity

n.腔，（空）洞 molten

a.熔化的ferrous

a.鐵的

含鐵的 foundry

n.鑄造cylinder

n.汽缸 piston

n.活塞wheel

n.車輪 pattern

n.模樣，模型木型，型板，模板shrinkage n.收縮，縮減 solidification

n.凝固，濃縮facilitate

v.使容易，便于，促進 mould n.鑄型v.造型，翻砂drag

n.下砂箱，下型 sprinkle

v.撒ram

v.撞擊 foundry n.鑄造廠，鑄造車間conveyor

n.傳送帶，輸送帶，傳送裝置 hopper

n.砂斗，裝料斗，漏斗flush

a.同平面的，齊平面的 cope

n.上砂箱，上型箱，頂層alignment

n.對準，成一線，對準中心 dowel

n.定位銷，合縫銷feeder

n.直澆道，澆道 runner n.內澆道，橫澆道cavity

n.空腔 riser

n.（補縮）冒口coincide

v.相重合

相疊合 displace v.排除（水，氣），位移，變位feed

n.增補，補縮 venting n.通氣permeability n.透氣性 gate

n.流道turbulence

n.湍流 via

prep.通過vibration

n.振動 fin

n.毛刺flash

n.毛邊Thefollowingexpressionswemayuse,beforewefinishoffthetask,pleasemakeouttheirEnglishmeaningwiththehelpofyourteammatesordictionaryortheinternet.模型腔 鉛錘測量裝置熔爐 汽缸體型箱，砂箱 活塞環考慮到，顧及 在適當的位置上與……平齊，與……一樣高 暗銷，定位銷，合縫銷分型砂 ReadtheabovematerialsagainwithyourworkmatesandthentrytotranslatethemintoChinese,andfinallydiscusswithyourworkmates.（1）Theprocessofcastingisthemanufactureofmetallicobjects(castings)bymeltingmetal,pouringitintoamoldcavity,andallowingthemoltenmetaltosolidifyascastingwhoseshapeisareproductionofthemoldcavity.（2）ThefoundryindustryhasfoundwidespreadapplicationandisconsideredtobethesixthlargesintheUnitedStatesbecauseitenablestheproductionofintricatelyshapedparts.（3）Plumbingfixtures,furnaceparts,cylinderblocksofautomobileandairplaneengines,pistons,pistonrings,machinetoolbedsandframes,wheels,andcrankshafts.Tickoutwhichofthefollowingitemsarebelongtotheproductsofcastingafterreadingtheabovematerialsanddiscussingwithyourworkmates.plumbingfixtures furnaceparts automobile airplaneengines pistons pistonrings machinetoolbeds frames wheels crankshafts Discusswithyourcolleaguesandtrytosharetheideasofyourpartnersandthenmakesurewhichofthefollowingexpressionisrightorwrong.RightforTandwrongforF.Tickthecorrectresponseintherelevantbox.（1）Thewordcastingisusedbothfortheprocessaswellasfortheproduct. （2）Thisprocessiscarriedoutinfoundries. （3）Thefoundryindustryincludesavarietyofcastingprocesses. Readtheparagraphoftheabovematerialsanddoyourbesttoanswerthefollowingquestionswiththehelpofyourclassmates.（1）Whatisthefirststage

intheproductionofsandcastings（2）Whythepatternmustbemadelargerthanthefinishedcastingsize（3）WhatarethemostimportantoperationsinsolderingReadtheabovematerialsagainwithyourworkmatesandthentrytotranslatethemintoChinese,andfinallydiscusswithyourworkmates.（1）Castingspatternsaregenerallymadefromhardwoodandpatternhastobemadelargerthanthefinishedcastingsizetoallowfortheshrinkagethattakesplaceduringsolidificationandcooling.（2）Ifahollowcastingistobemade,thepatterndesignwillincludeextensionpiecessothatspacestoacceptthesandcorearemouldedintothesand.（3）Thisprocessoffillingandrammingmaybedonebyhangbutmouldproductionisautomatedinalargefoundrywiththemouldboxesmovingalongaconveyor,firsttobefilledwithsandfromhoppersandthentopassundermechanicalhammersforramming.Discusswithyourcolleaguesandtrytosharetheideasofyourpartnersandthenmakesurewhichofthefollowingexpressionisrightorwrong.RightforTandwrongforF.Tickthecorrectresponseintherelevantbox.（1）Aftertherammingofsandinthecopeiscompleted,thetwohalvesofthemouldingboxarecarefullyseparated. （2）Afterventingthepatternsarecarefullyremovedfrombothcopeanddrag,andagateorgatesarecarefullycuttoconnecttherunnerchannelwiththemaincavity. （3）Liquidmetalispouredsmoothlyintothemouldviathefeeder. PracticespokenEnglish.Mr.Zhang:Hello,Mr.Cheng,whatareyoudoing?Mr.Cheng:Iam…Mr.Zhang:Thisis…,isn’tit?Mr.Cheng:Yes.Itis…Mr.Zhang:Whatcanitdo?Mr.Cheng:…Mr.Zhang:What’sthat?Mr.Cheng:Itisa…Mr.Zhang:Isthisa…?Mr.Cheng:Yes,itis.Itisa…Mr.Zhang:Whatkindsofworkcanitto?Mr.Cheng:Itcan…Mr.Zhang:Thankyouforyourhelp.Mr.Cheng:Mypleasure.___________________________________________________________________________Task2bigcountrycraftsmaninprocessingBigcountrycraftsmanFittermasterHushuangqianExercise:talkinginpairs.1Servethemotherland2Craftsmanship3practicecraftsmanshi4PracticeCraftsmanSpiritinLearningandLifePracticespokenEnglish.Mr.Liu:Goodafternoon,Mr.Xiong.Mr.Xiong:Goodafternoon,Mr.Liu.Mr.Liu:Ihavesometroublewithheattreatment.Couldyoutellme?Mr.Xiong:Whataretheproblems?Mr.Liu:Doyouknowwhatisthefunctionofheattreatment?Mr.Xiong:Yes.IthinkIsee.Heattreatmentisamethodbywhichtheheattreatmentcanchangethephysicalpropertiesofamaterial.Mr.Liu:Howmanytypesofheattreatmentarethere?Mr.Xiong:Therearemainoperationsintheheattreatmentofsteel:hardening,temperingandannealing.Mr.Liu:Howishardeningoperationdone?Mr.Xiong:Thehardeningoperationconsistsofheatingthesteelaboveitscriticalrangeandthequenchingisinasuitablemediumsuchaswater,brine,oil,orsomeotherliquid.Havingbeenhardened,themetalmustbegivenatemperingtreatmentwhichconsistsofreheatingthehardenedsteeltoatemperaturebelowthecriticalrange,thusproducingtherequiredphysicalproperties.Mr.Liu:Andwhatiscriticaltemperature?Mr.Xiong:Itisthetemperatureatwhichacertainchangetakesplaceinthephysicalconditionofthesteel.Mr.Liu:Whatisthepurposeofannealing?Mr.Xiong:Itcansoftenawork-pieceandrelieveinternalstressesproducedbymachining.Mr.Liu:Thankyoufortellingmeaboutthese.Mr.Xiong:I’mgladtohavebeenofsomeservice.SceneTwo3DPrintingandCaseTask13DPrintingOverviewPracticespokenEnglish.Mr.Wang:Goodmorning,Mr.Yang.Mr.Yang:Goodmorning,Mr.Wang.Mr.Wang:Itseemsyouareverybusynow.Mr.Yang:Yes,alittle.Mr.Wang:Whatareyoudoing?Mr.Yang:Iammeasuringapart.Mr.Wang:Areallsizesofthepartcorrect?Mr.Yang:No,Ifindtheholeisbiggerthanthemaximumlimitofthesize.Mr.Wang:Canitbedoneoveragain?Mr.Yang:No.Ithasbecomeawasteproduct.Mr.Wang:Whydoesthedesignergiveatoleranceofapart.Mr.Yang:Becauseitisvirtuallyimpossibletomanufactureapartwithouterrorandthedesigneralsomustconsiderthedimensionsofmatingpartstokeeptheprecisionoffit,sothelimitedsizesofapartmustbegiven.Mr.Wang:Oh,Isee.Iamverygladtoknowthis.Thanks.Mr.Yang:You’rewelcome.Task2bigcountrycraftsmanin3DPrintingExercise:talkinginpairs.1Servethemotherland2Craftsmanship3practicecraftsmanshi4PracticeCraftsmanSpiritinLearningandLifePracticespokenEnglish.MissCandy:Hello,Mr.SmithNicetomeetyou!Mr.Smith:HiMissCandy.Nicetomeetyou,too.MissCandy:Whatareyoudoing?Mr.Smith:Iampreparingforsomeexperiments.MissCandy:Iknowyourmajorisengineering.Couldyoutellmewhataboutthetransfermachine?Mr.Smith:…MissCandy:Aretransfermachinecommoninworkshop?Mr.Smith:…MissCandy:Howtransfermachinework?Mr.Smith:…MissCandy:I’mreallyverygratefultoyou.Mr.Smith:Notatall.SceneThreeWeldingProcessandCaseTask1WeldingProcessLookatthefollowingwordswemayuseinthissceneandmatchtheEnglishandChinesemeaning.solder 焊料soldering 錫焊，軟釬焊braze 銅焊brazing 銅焊（接）join 連接，結合joint 接縫，結合處bismuth 鉍cadmium 鎘coat 涂上coating 涂層flux 助溶劑stearine 甘油vaseline 凡士林spelter 硬釬焊料Thefollowingexpressionswemayuse,beforewefinishoffthetask,pleasemakeouttheirEnglishmeaningwiththehelpofyourteammatesordictionaryortheinternet.酸洗液 氧化膜氯化鋅 純銅烙鐵硬焊料 Readtheparagraphoftheabovematerialsanddoyourbesttoanswerthefollowingquestionswiththehelpofyourclassmates.（1）Howdowechoosethemethodofjoiningmetalarticlestogether?（2）Whatisthefunctionofsoldering?（3）Whatarethemostimportantoperationsinsoldering?Tickoutwhichofthefollowingitemsarebelongtothemethodsofjoiningmetalafterreadingtheabovematerialsanddiscussingwithyourworkmates.brazed riveted soldering welded Surveyyourworkplaceandobservecarefully,andthenaskthemasterforhelpifanyproblems,writedownyourexperiencesinyourworkplace.Pleasetickouttheelementswemayaddinwhenjoiningmetaltogether.stearine flux zincchloride cadmium tin acidcleaner vaseline bismuth lead Discusswithyourcolleaguesandtrytosharetheideasofyourpartnersandthenmakesurewhichofthefollowingexpressionisrightorwrong.RightforTandwrongforF.Tickthecorrectresponseintherelevantbox.（1）Joiningmetalarticlestogetherdependsonthetypeofmetalandthestrengthofthejointwhichisrequired. （2）Solderinggivesasatisfactoryjointforlightarticlesofsteel,copperorbrass. （3）Solderingistheprocessofjoiningtwometalsbyathirdmetaltobeappliedinthemoltenstate. ReadtheabovematerialsagainwithyourworkmatesandthentrytotranslatethefollowingsentencesaboutsolderingandbrazingintoChinese,andfinallydiscusswithyourworkmates.（1）Fluxisusedtoremoveandpreventoxidationofthemetalsurfacetobesoldered.（2）Solderingcoppersaremeadindifferentlengths,formsandweights.（3）Insomecasesitmaybenecessarytoconnectmetalsurfacesbymeansofahardspeltersolderswhichfusesathightemperature.PracticespokenEnglish.John:Howdoyoudo!MynameisJohn.MissLi:Howdoyoudo!John:Arethereanyvacanciesinyourfactory?MissLi:Yes.Weneedsomenewworkers.Whatsubjectwasyourmajor?John:Imajoredinmechanicalmanufacturing,andIthinkIamgoodatoperatingmillingmachine.MissLi:Whatsortofjobdoyouliketodo?John:Iwouldliketodosolderingandbrazing.IthinkIcandomybesttoit.MissLi:Great!Whattimecanyoustarttowork?John:Anytime.MissLi:Verynice.Howmuchdoyouexpectinsalary?John:7800Yuan.MissLi:OK!Pleasefillinthisform.Ifanythingturns,I’llcontactwithyou.John:Thankyou!MissLi:You’rewelcome.Task2bigcountrycraftsmaninWeldingGreatcraftsmanLiWanjunExercise:talkinginpairs.1Servethemotherland2Craftsmanship3practicecraftsmanshi4PracticeCraftsmanSpiritinLearningandLifePracticespokenEnglish.WanYing:Goodafternoon,Mr.Chen.Mr.Chen:Goodaftenoon,WanYing.Whereareyougoing?WanYing:Iamgoingtothelibrarytoborrowsomebooks.Mr.Chen:Whatkindsofbooksdoyouwanttoborrow?WanYing:Iwouldliketoborrowsomebooksofbeltdrives.Mr.Chen:Why?WanYing:Ihavebeenlearningthecourseofbeltdrives,butIhavesometroubleinlearningthebeltdrive.SoIneedsomereferencebooks.Mr.Chen:Whataretheproblems?MayIhelpyou?WanYing:Yes,whataretheadvantagesofbeltdrive?Mr.Chen:Beltdriveisakindofflexibilitytransmission,sothelocationbetweendriveranddrivenmachinerycanbeeasilyadjusted.Anotheradvantageofbeltdriveisthatitcanefficientlyreducevibrationandshocktransmission,furthermorebeltdriveisrelativelyquiet.WanYing:Itseemstobeaveryusefultransmissionmethod.Mr.Chen:Yes,youareright.WanYing:Youareverykind.Bye-bye!Mr.Chen:Bye!SceneFourPlasticProcessandCaseTask1PlasticProcessDiscusswithyourteam-matesaboutextrusion.Makethemouttrueorfalse.1.Coldextrusion,orheatedtoatemperaturewhichgivesoptimumresultsfortheconditionsapplyingandtheproductrequirements,i.e.hotorwarmextrusion.FORMCHECKBOX FORMCHECKBOX2.Inmostcases,themetalisintheformofasolidorhollowcylinderandismovedinacontainingtoolinthedirectioninwhichtheproductemergesfromthedieapertureFORMCHECKBOX FORMCHECKBOX3.Mostmetalscanbeextrudedinonewayoranother,butobviouslysomemoreeasilythanothers.FORMCHECKBOX FORMCHECKBOX4.Thecommonmetalsthatcanbeextrudedatambienttemperaturesarelead,aluminium,copper,lowcarbonsteelsandafewalloysofthesemetals.Thesoftersemi-preciousmetalscanalsobeextrudedcoldifrequired.FORMCHECKBOX FORMCHECKBOX5.Traditionally,inhotextrusionabilletofmetalisforcedthroughashapedholeatoneendofacontainerbytheactionofarampressingfromtheotherend6.Thecontainerboreisofuniformcross-sectionandtheratioofitsareatothatoftheproductisknownastheextrusionratio7.Inthiscasetheextrudateleavesthediethroughthehollowram.Althoughthecontainerboreisnormallyrounditmayalsoberectangulartopermitextrusionofverywideproducts8.Themaintoolingcomponentsforthehotextrusionprocessatthereforethecontainer,thedieassembly,thedummyblockandthemandrel9InforwardrodandtubeextrusionthepunchdoesnotsuffermuchfromwearbutthecompressivestressesaresimilartocanextrusionpunchesFORMCHECKBOX FORMCHECKBOXFORMCHECKBOX FORMCHECKBOXFORMCHECKBOX FORMCHECKBOXFORMCHECKBOX FORMCHECKBOXFORMCHECKBOX FORMCHECKBOXPleaseworkwithyourteam-matestryingtotranslatethefollowingsentencesintoEnglish.NormallydieshavetohaveatleastonesupportringastheinternalpressuresarehighenoughtocausetransversecrackingduetotangentialortriaxialstressesrespectivelyIncanextrusionthe