机械制造类专业英语（第2版） 答案 杨成 Module II Advanced Manufacturing Process and Cases

机械制造类专业英语CommonProcessingTechnologyandCasesModuleIIAdvancedManufacturingProcessandCasesSceneOneCommonProcessingTechnologyandCasesTask1CommonProcessingTechnologyLookatthefollowingwordswemayuseinthissceneandmatchtheEnglishandChinesemeaning.cavity

n.腔，（空）洞 molten

a.熔化的ferrous

a.铁的

含铁的 foundry

n.铸造cylinder

n.汽缸 piston

n.活塞wheel

n.车轮 pattern

n.模样，模型木型，型板，模板shrinkage n.收缩，缩减 solidification

n.凝固，浓缩facilitate

v.使容易，便于，促进 mould n.铸型v.造型，翻砂drag

n.下砂箱，下型 sprinkle

v.撒ram

v.撞击 foundry n.铸造厂，铸造车间conveyor

n.传送带，输送带，传送装置 hopper

n.砂斗，装料斗，漏斗flush

a.同平面的，齐平面的 cope

n.上砂箱，上型箱，顶层alignment

n.对准，成一线，对准中心 dowel

n.定位销，合缝销feeder

n.直浇道，浇道 runner n.内浇道，横浇道cavity

n.空腔 riser

n.（补缩）冒口coincide

v.相重合

相叠合 displace v.排除（水，气），位移，变位feed

n.增补，补缩 venting n.通气permeability n.透气性 gate

n.流道turbulence

n.湍流 via

prep.通过vibration

n.振动 fin

n.毛刺flash

n.毛边Thefollowingexpressionswemayuse,beforewefinishoffthetask,pleasemakeouttheirEnglishmeaningwiththehelpofyourteammatesordictionaryortheinternet.模型腔 铅锤测量装置熔炉 汽缸体型箱，砂箱 活塞环考虑到，顾及 在适当的位置上与……平齐，与……一样高 暗销，定位销，合缝销分型砂 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 锡焊，软钎焊braze 铜焊brazing 铜焊（接）join 连接，结合joint 接缝，结合处bismuth 铋cadmium 镉coat 涂上coating 涂层flux 助溶剂stearine 甘油vaseline 凡士林spelter 硬钎焊料Thefollowingexpressionswemayuse,beforewefinishoffthetask,pleasemakeouttheirEnglishmeaningwiththehelpofyourteammatesordictionaryortheinternet.酸洗液 氧化膜氯化锌 纯铜烙铁硬焊料 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