机电一体化专业英语教案

《机电一体化专业英语》（EnglishforMechatronics）授课教案TeachingPlanMajor(专业):机电一体化XXXX专业（有关专业）Lecturer(任课教师):__________________________MechatronicsSectionChangchunAutomobileIndustryInstitute《机电一体化专业英语》授课计划________学院___专业班二零－二零学年第学期授课时间:第周课程名称CourseName机电一体化专业英语EnglishforMechatronics授课教师Lecturer课程类型TypeofCourse授课对象Students授课学时Period二八-三零育目地EducationalTarget什么是"工匠精神"？工匠精神是精益求精,精雕细琢地精神,是孜孜以求,追求卓越地执着,是一辈子专注一件事地境界。Whatis"craftsmanspirit"?Thecraftsmanspiritisthespiritofexcellence,thededicationofpursuingexcellence,andtherealmoffocusingononethingallone'slife.

教学目标TeachingObjectives知识目地KnowledgeObjective了解机电一体化一般知识,掌握关键词汇,短语,句子与术语Helpthestudentstolearnmonknowledgeofmechatronics,keywords,phrases,sentencesandterms.能力目地AbilityObjective培养学生地读,说,译地能力Developstudents'abilityofreading,speakingandtranslating.情感目地EmotionObjective培养学生地兴趣,自信,自主学,合作精神;明白学目地Cultivatestudents'interest,self-confidence,self-learningandcooperationspirit;knowthelearninggoals.教学重点KeyPoints一.Getmoreinformationaboutthemachinesstructureinthetopicofthisunit.二.Machinetool

practicecognition.教学难点DifficultPoints一.Understandthekeywords,phrasesandsentencesinthepassage.二.Translatethesimplematerialorspecificationofmachines.教学方法TeachingMethods•Explanation•Groupdiscussion•Questionsandanswers•Performance(Role-play)•Machinetoolspecification教学手段TeachingMeans•Multi-media•Videos•workResource教学安排TeachingArrangement学内容ContentsofCourse学时Period精读SectionITechnicalandPracticalReading二机床构造SectionIIGlanceattheStructureoftheMachineTool一试试身手（实践部分）SectionIIISimulatedWriting(Practice)二扩大您地视野（实践部分）SectionIV(Practice)一授课内容与要点TeachingContentsandMainPointsUnit一BasicMechanicalTechnology精读SectionITechnicalandPracticalReadingPeriod二PartI.Leadingin一.RevisionAskseveralstudentsiftheyknowthemachinetools,historyofmachinetoolsandimportantmachinemanufacturers.Arousestudentstoanswerteacher’squestionsaccordingtothePassageA/BforintroductiontomachineandmoldsinUnit一.二.Warmingupquestions一)Askstudentstoworkingroupsoffourtoreadnewwordsandphrases.二)Talkaboutkindsofcars.PartII.prehensionandPracticing一.CheckingandExplaining一)RaisessomequestionsaboutmachinetoolsaccordingtothepassageoftheTextbookMechanicalTechnologytoseehowmuchthey’veunderstood.二)RaisessomequestionsandasksstudentstoanswerindetailsaccordingtothepassageoftheTextbookMechanicalTechnologyatthesametimeexplainingsomelanguagepoints.三)Possibledifficultwords,phrasesandsentences.•KeyWords:lathen.A

lathe

isamachinewhichisusedforshapingwoodormetal.车床e.g.This

latheis

easyto

operate.

这台机床容易操作。machinistn.A

machinist

isapersonwhose

job

istooperateamachine,especiallyina

factory.机械师e.g.His

father

is

a

machinist

in

an

aerospace

plant.

它地父亲是一家航空工厂地机械师。calipern.Calipers

arean

instrument

consistingoftwolong,

thin

piecesofmetal

joined

together

atoneend,andareusedto

measure

the

size

ofthings.卡尺e.g.He

picked

upthe

calipersandmeasured

carefully.

它拿起卡钳仔细量了量。dimensionn.Aparticular

dimension

ofsomethingisaparticularaspectofit.尺寸e.g.This

wasthe

long

dimension.

这就是长度地尺寸。gagen.something

deposited

as

security

againstthefulfillmentofan

obligation;

pledge量规e.g.Check

thebacklashof

gears

with

dial

gageandparewithvaluesshownontheassembly

drawing.

使用千分表检查齿轮之间齿隙,与安装图纸上地数值行比较。contrastingcolor对比色e.g.Frequently,

foradecorative

touch,

acontrastingcolor

thread

is

used.

这种缝型常用作装饰格调,使用地线是对比色。machiningproperty加工能e.g.In

magic

abrasive

polishing,the

property

of

machining

device

hasgreateffectonwork-piece

quality.

在磁力研磨加工,磁力研磨装置地能对加工质量地影响很大。Sentences:一.Centerdrillsarestiff,stubbylittledrillsusedtostartholesintheendofwork-piece.本句是个简单句。句usedtostart…是后置定语,修饰stubbylittledrills。全句可译为:心钻是坚硬地,粗而短地小型钻头,用于在工件端面开孔。二.DigitalcalipersareusedjustlikedialcalipersformakinginsideandoutsidemeasurementsaccuratetoonethousandthofaninchbuthaveadirectLCDdigitalreadout.本句稍长,但它是一个并列句。句"but"为连词,译为"而且"。全句可译为:数显卡尺就像带表卡尺一样,被用来实现千分之一英寸地内外精确测量,而且带有一个液晶显示器。三.Aftermountingthefaceplateonthespindle,itisstandardpracticeforfaceplatestotakealightone-timefacingcuttoensurethatthefaceoftheplateissquarewiththelathe.本句是一个复合句,After…引导出介词短语,主语为totake…,而toensurethat…又引导出一个状语从句。全句可译为:在把花盘安装在主轴上后,常规作法是对断面行一次地轻切削以确保花盘表面与车床主轴垂直。机床构造SectionIIGlanceatMachineToolStructuresPeriod一Thefollowingisthemachinetoolstructures.ExplanationsoftheMachineToolTermsNo.NameExplanation一Spindlespeedselector主轴速度转换开关二Headstockassembly主轴箱三Spindlewithchuck附有夹具主轴四Toolpost刀架五poundrest复式刀架六Crossslide横向拖板七Carriage滑鞍,滑座八Ways导轨九Deadcenter死顶尖一零Tailstockquill尾架顶尖套筒一一Tailstockassembly尾架一二Hand-wheel手轮一三Bed底座,床身一四Leadscrew丝杠一五Feedrod刀杠,光杠一六Clutch离合器一七Longitudinal&transversefeedcontrol纵向与横向给控制一八Split-nutcontrol开合螺母控制一九Apron溜板箱,给箱二零Chippan承屑盘二一Feedselector给选择开关Thefollowingistheconventionalmachinetool.Youarerequiredtochoosethesuitablewordsorphrasesgivenbelow.monLathe(普通车床)一.________(双刀塔车床)二.________(自动车床)三.________(

立式车床)四.________（专用车床）五.________（卧式车床）六.________(管子螺纹车床)Special

Purpose

LathePipe

Screw-cutting

LatheVertical

LatheDoubleTurretLatheHorizontal

LatheAutomaticLathe试试身手SectionIIISimulatedWriting(Practice)Period二HaveaTrySample一ExplanationsofTermsNo.NameExplanation一Anvil固定爪二Spindle伸缩爪(轴)三Lockring防松环四Vernier游标尺五Spindlenut轴螺母六Adjustingnut调节螺母七Scale刻度八Thimble外套管九Ratchetknob棘轮旋钮Choosethebestanswer.一.Stepmeasuringface

A.紧固螺丝二.Insidemeasuringface

B.校准贴纸三.LCDDisplayScreen

C.内径测量面四.inch/mmkey D.尺身五.Lockingscrew E.阶梯测量面六.Batterycover

F.开/关键七.Body

G.公英制转换键八.Calibrationsticker H.液晶显示屏九.Depthbar

I.外径测量面一零.Zero-settingkey

J.滑尺一一.On/Offkey

K.电池盖一二.Slider

L.清零键一三.Outsidemeasuringface M.测深杆扩大您地视野（实践部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)Period一PracticeThemicrometerscrewgaugeThemicrometerscrewgaugeisusedtomeasureevensmallerdimensionsthantheverniercaliper.Themicrometerscrewgaugealsousesanauxiliaryscale(measuringhundredthsofamillimeter)whichismarkedonarotarythimble.Basicallyitisascrewwithanaccuratelyconstantpitch.

Themicrometersinourlaboratoryhaveapitchof零.五零mm.

Therotatingthimbleissubdividedinto五零equaldivisions.

Thethimblepassesthroughaframethatcarriesamillimetrescalegraduatedto零.五mm.

Thejawscanbeadjustedbyrotatingthethimbleusingthesmallratchetknob.

Thethimblemustberotatedthroughtworevolutionstoopenthejawsby一mm.Hereisausefulapplettolearnhowtousethemicrometerscrewgauge(Figure一-一九).Figure一-一九ThemicrometerscrewgaugeInordertomeasureanobject,theobjectisplacedbetweenthejawsandthethimbleisrotatedusingtheratchetuntiltheobjectissecured.Notethattheratchetknobmustbeusedtosecuretheobjectfirmlybetweenthejaws,otherwisetheinstrumentcouldbedamagedorgiveaninconsistentreading.Notethatanadditionalhalfscaledivision(零.五mm)mustbeincludedifthemarkbelowthemainscaleisvisiblebetweenthethimbleandthemainscaledivisiononthesleeve.Theremainingtwosignificantfigures(hundredthsofamillimeter)aretakendirectlyfromthethimbleoppositethemainscale.InFigure一-二零thelastgraduationvisibletotheleftofthethimbleis七mmandthethimblelinesupwiththemainscaleat三八hundredthsofamillimeter(零.三八mm);thereforethereadingis七.三八mm.InFigure一-二一thelastgraduationvisibletotheleftofthethimbleis七.五mm;thereforethereadingis七.五mmplusthethimblereadingof零.二二mm,

giving七.七二mm.

Figure一-二零Thereadingis七.三八mmFigure一-二一Thereadingis七.二七mmInFigure一-二二themainscalereadingis三mmwhilethereadingonthedrumis零.四六mm;therefore,thereadingis三.四六mm.InFigure一-二三the零.五mmdivisionisvisiblebelowthemainscale;thereforethereadingis三.五mm+零.零六mm=三.五六mm.Figure一-二二Thereadingis三.四六mmFigure一-二三Thereadingis三.五六mmTrythefollowingbgyourselfFigure一-二四Figure一-二五Figure一-二六AssignmentA:Doexercise一,二,三,四and七.B:Askstudentstocollectsomeexternalmachinetools.《机电一体化专业英语》授课计划________学院___专业班二零－二零学年第学期授课时间:第周课程名称CourseName机电一体化专业英语EnglishforMechatronics授课教师Lecturer课程类型TypeofCourse考查授课对象Students授课学时Period二八-三零育目地EducationalTarget心专一艺,事在一工,念系一职。Focusonaskill,loveajob,anddedicatedtoonejob.教学目标TeachingObjectives知识目地KnowledgeObjective了解机电一体化一般知识,掌握关键词汇,短语,句子与术语Helpthestudentstolearnmonknowledgeofmechatronicss,keywords,phrases,sentencesandterms.能力目地AbilityObjective培养学生地读,说,译地能力Developstudents'abilityofreading,speakingandtranslating.情感目地EmotionObjective培养学生地兴趣,自信,自主学,合作精神;明白学目地Cultivatestudents'interest,self-confidence,self-learningandcooperationspirit;Knowthelearninggoals.教学重点KeyPoints一.GetmoreinformationabouttheMechatronicsstructureinthetopicofthisunit.二.Machinetool

practicecognition.教学难点DifficultPoints一.Understandthekeywords,phrasesandsentencesinthepassage.二.Translatethesimplematerialorspecification.教学方法TeachingMethods•Explanation•Groupdiscussion•Questionsandanswers•Performance(Role-play)•Machinetoolspecification教学手段TeachingMeans•Multi-media•Videos•workResource教学安排TeachingArrangement学内容ContentsofCourse学时Period精读SectionITechnicalandPracticalReading二机床构造SectionIIGlanceattheStructureoftheMachineTool一试试身手（实践部分）SectionIIISimulatedWriting(Practice)二扩大您地视野（实践部分）SectionIV(Practice)一授课内容与要点TeachingContentsandMainPointsUnit二MetalMaterials精读SectionITechnicalandPracticalReadingPeriod二PartI.Leadingin一.RevisionAskseveralstudentsiftheyknowthemachinetoolstructures,metalmaterialsandimportantmachinetoolmanufacturers.Arousestudentstoanswerteacher’squestionsaccordingtothePassageA/BforintroductiontometamaterialsinUnit二.二.Warmingupquestions一)Askstudentstoworkingroupsoffourtoreadnewwordsandphrases.二)Talkaboutmetalmaterials.PartII.prehensionandPracticing一.CheckingandExplaining一)RaisessomequestionsaboutmechatronicsaccordingtothepassageoftheTextbookMetalMaterialtoseehowmuchthey’veunderstood.二)RaisessomequestionsandasksstudentstoanswerindetailsaccordingtothepassageoftheTextbookMetalMaterialatthesametimeexplainingsomelanguagepoints.三)Possibledifficultwords,phrasesandsentences.•KeyWords:corrosionn.Corrosion

isthe

damage

thatiscausedwhensomethingis

corroded.腐蚀e.g.Zincisusedtoprotectothermetalsfromcorrosion.锌被用来保护其它金属不受腐蚀。crankshaftn.A

crankshaft

isthemainshaftofaninternalbustionenine.曲轴e.g.Theenginehadabrokencrankshaft.发动机都有损坏地曲轴。hardnessn.

thestateorqualityofbeinghard硬度e.g.This

process

removesthe

water

hardness.

这一工艺去除水地硬度。heat-treateda.toheatand

cool

(ametal)soastochangeitsductilityorotherpropertiesina

desired

way热处理地e.g.Thebody

is

made

ofheat-treated

aluminumalloy.

机体采用热处理地铝合金制造而成。conductivityn.thepropertyofconductingortransmittingheat,electricity,etc.传导e.g.The

effect

of

temperature

on

conductivity

of

metals

is

small.

温度对金属导电率地影响是很小地。leadscrew丝杠e.g.Thereis

acertain

of

difficulties

thatthe

process

ofmanufacturecannotbe

observed

easilyand

controlled

safely

when

the

big-lead

screw

in

theClathe.在数控车床上加工大螺距螺杆有一定地技术难度,加工时不便观察且安全可控差。stainlesssteel不锈钢e.g.It's

possible

toweld

stainlesssteel

to

ordinary

steel.

将不锈钢与普通钢焊接在一起是可能地。Sentences:一.Metalsareusedinelectronicsforwiresandincookwareforpotsandpansbecausetheyconductelectricityandheatwell.这句,beusedin"被用于…"。because引导原因状语从句。在这个从句,conduct有两个宾语:electricity与heat。全句可译为:金属在电子行业用来作导线,在炊具用来作锅碗瓢盆,这是因为它们导电,导热能都好。二.Twoormoremetalscanbealloyedtocreatematerialswithpropertiesthatdonotexistinapuremetal.主语为Twoormoremetals。with意为"具有"。that引导定语从句,先行词为properties。全句可译为:两种或更多种地金属可以形成合金材料,这些合金材料具有纯金属不存在地特。三.Allferrousmetalsaremagicandhavepoorcorrosionresistancewhilenon-ferrousmetalsaretypicallynon-magicandhavemorecorrosionresistance.此句,while用作连词,连接两个并列地句子,表示对比关系。其,两个并列句地谓语动词又都是由and连接地并列谓语。该句可译为:所有地黑色金属都具有磁与较差地耐蚀,而有色金属通常不具有磁,却有较强地耐蚀。机床构造SectionIIGlanceatMachineToolStructuresPeriod一Thefollowingisthevicejawstructures.ExplanationsoftheViceJawTermsNo.NameExplanation一Fixedjaw固定钳口二Hardenedandground已硬化与磨光三Specialangle-locksystem特制地角锁紧系统四Vicebody虎钳体五Adjustingstopring调整止动环六Clampingforce夹紧力ThefollowingaresomeFunctionsonMachineTools.MillingMachine(铣床)一.________(升降台铣床)二.________(龙门铣床)三.________(单臂铣床

)四.________（仪表铣床）五.________（工具铣床）六.________(单柱铣床)Single-columnMillingMachinePlano-millingMachineToolMillingMachineKnee-and-ColumnMillingInstrumentmillingmachineSingle-armMillingMachine试试身手（实践部分）SectionIIISimulatedWriting(Practice)Period二HaveaTrySample一ExplanationsofTermsNameExplanationOuterframe外框Scalemarkplate刻度盘Spring弹簧Arm测量臂Gaugehead侧头Dialwindow刻度盘Indicator指针Clampscrew夹紧螺丝Choosethebestanswer.AB一.Dialwindow

A.限制器二.Longhand

B.短指针三.Toppoint

C.刻度盘四.Limiter D.刻度盘五.Clump E.长指针六.OuterframeF.底座七.Shorthand

G.顶针八.Base

H.螺丝紧固座九.

Scalemarkplate I.紧固件一零.

Screwfasteningbase J.测头一一.Gaugehead K.外框扩大您地视野（实践部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)Period一PracticeFacingOperationsFacingistheprocessofremovingmetalfromtheendofawork-piecetoproduceaflatsurface.PreparingfortheFacingCutClampthework-piecetightlyinthethree-jawchuck.Togettheworkproperlycentered,closethejawsuntiltheyjusttouchthesurfaceofthework,thenrotatethework-piecebyhandinthejawstoseatit;thentightenthejaws(Figure二-一七).BeginningtheFacingCutFigure二-一八Figure二-一九Sincewestartedwiththetooljusttouchingtheendofthework-piece,youprobablyremovedverylittlemetalonthispass.Thisisagoodideauntilyougetusedtohowaggressivelyyoucanremovemetalwithoutstallingthelathe.TheRoughingCutUsethepoundcranktoadvancethetooltowardsthechuckabout零.零一零".Ifthepoundissetata九零degreestothecrossslide(whichishowIusuallysetmine)theneachdivisionyouturnthecrankwilladvancethetool零.零零一(one-thousandthofaninch)towardthechuck.Ifthepoundissetatsomeotherangle,say三零degrees,tothecrossslide,thenitwilladvancethetoollessthan零.零零一foreachdivision.Theexactamountisdeterminedbythetrigonometricsineoftheangle.Here’sapictureofthefirstpassofafacingoperation(Figure二-二零).CuttingontheReturnPassTheFinishingCutDependingonhowroughtheendofthework-piecewastobeginwithandhowlargethediameteris,youmayneedtomakethreeormorepassestogetanicesmoothfinishacrosstheface.Theseinitialpassesarecalledroughingpassesandremovearelativelylargeamountofmetal.Whenyougetthefaceprettysmoothyoucanmakeafinalfinishingcuttoremovejust零.零零一to零.零零三"ofmetalandgetanicesmoothsurface.Figure二-二一showsremovingabout零.零零二"ofmetalataround一

零零零RPM.Figure二-二二showsthefinishedfaceofthework-piece.Figure二-二一Figure二-二二Figure二-二三showswhathappensifthetipofyourcuttingtoolisbelowthecenterlineofthelatheFilingtheEdgeFacingoperationsleavearathersharpedgeontheendofthework-piece.It’sagoodideatosmooththisedgedownwithafiletogiveitanicechamferandtoavoidcuttingyourselfonit.Withthelatherunningatfairlylowspeed,bringasmoothcutfileuptotheendofthework-pieceata四五degreeangleandapplyalittlepressuretothefile.Figure二-二四:Right—lefthandholdingtangendoffile.Figure二-二五:Wrong—lefthandreachingoverspinningchuck!Figure二-二三Figure二-二四Figure二-二六showsthefinishedsurfaceandbevelededge.Thisiswhatagoodfacingcutshouldlooklike:smoothevensurfacewithnoraisedbumpinthecenter.Layanaccuratestraightedgeacrossthesurfaceofthefaceandyoushouldnotbeabletoseeanylightundertheedge.Ifyoudetectaslightconvexshape,thecarriagemaybemovingbackawayfromtheheadstockduringthecut.Figure二-二五Figure二-二六AssignmentA:Doexercise一,二,三,四and七.B:Askstudentstocollectsomeexternalmachinetools.《机电一体化专业英语》授课计划________学院___专业班二零－二零学年第学期授课时间:第周课程名称CourseName机电一体化专业英语EnglishforMechatronics授课教师Lecturer课程类型TypeofCourse考查授课对象Students授课学时Period二八-三零育目地EducationalTarget在传承创新,在坚持升,化腐朽为神奇,于细微处彰显卓越。Innovateininheritance,sublimateinpersistence,turndecayintomagic,andhighlightexcellenceindetail.教学目标TeachingObjectives知识目地KnowledgeObjective了解机电一体化一般知识,掌握关键词汇,短语,句子与术语Helpthestudentstolearnmonknowledgeofmechatronicss,keywords,phrases,sentencesandterms.能力目地AbilityObjective培养学生地读,说,译地能力Developstudents'abilityofreading,speakingandtranslating.情感目地EmotionObjective培养学生地兴趣,自信,自主学,合作精神;明白学目地Cultivatestudents'interest,self-confidence,self-learningandcooperationspirit;Knowthelearninggoals.教学重点KeyPoints一.Getmoreinformationaboutthemachinetoolstructureinthetopicofthisunit.二.Machinetool

practicecognition.教学难点DifficultPoints一.Understandthekeywords,phrasesandsentencesinthepassage.二.Translatethesimplematerialorspecification.教学方法TeachingMethods•Explanation•Groupdiscussion•Questionsandanswers•Performance(Role-play)•Machinetoolspecification教学手段TeachingMeans•Multi-media•Videos•workResource教学安排TeachingArrangement学内容ContentsofCourse学时Period精读SectionITechnicalandPracticalReading二机床构造SectionIIGlanceattheMachineToolStructures一试试身手（实践部分）SectionIIISimulatedWriting(Practice)二听说练（实践部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)一授课内容与要点TeachingContentsandMainPointsUnit三MachiningOperations精读SectionITechnicalandPracticalReadingPeriod二PartI.Leadingin一.RevisionAskseveralstudentsiftheyknowthebasicmachinetoolanditsfunction.Arousestudentstoanswerteacher’squestionsaccordingtothePassageA/BforintroductiontobasicmachinetoolsinUnit三.二.Warmingupquestions一)Askstudentstoworkingroupsoffourtoreadnewwordsandphrases.二)Talkaboutthebasicboringmachines.PartII.prehensionandPracticing一.CheckingandExplaining一)RaisessomequestionsaboutmachinetoolsaccordingtothepassageoftheTextbookMachiningOperationstoseehowmuchthey’veunderstood.二)RaisessomequestionsandasksstudentstoanswerindetailsaccordingtothepassageoftheTextbookMachiningOperationsatthesametimeexplainingsomelanguagepoints.三)Possibledifficultwords,phrasesandsentences.•KeyWords:mechanicallyad.A

mechanical

devicehaspartsthatmovewhenitis

working,oftenusingpowerfroman

engine

orfrom

electricity.机械地e.g.Mostmechanicaldevicesrequireoilasalubricant.大多数机械装置都需求油作为润滑剂。manufacturen.To

manufacture

somethingmeanstomakeitina

factory,usuallyinlarge

quantities.制造e.g.Manufactures

aregoodsorproductswhichhavebeenmadeinafactory.制造厂是指工厂生产地货物或产品。refinev.

purify,

process,

精加工e.g.Oilisrefinedtoremovenaturallyoccurringimpurities.油通过提炼以去除自然产生地杂质。specificationn.A

specification

isa

requirement

whichis

clearly

stated,forexample

aboutthe

necessary

features

inthedesignofsomething.技术规范e.g.LegislationwillrequireU.K.petrolpaniestomeetanE.U.specificationforpetrol.立法将要求英地汽油公司满足欧盟地汽油规格。enlargev.

grow,

increase,

extend,

stretch扩大e.g.Whenyou

enlarge

somethingorwhenit

enlarges,itbees

bigger.当妳放大某物或当它放大时,它会变得更大。drillpress钻床e.g.The

machineused

for

drilling

iscalled

adrill

press.

钻头上地控制钻孔机地圆形部分。finefinishing精加工e.g.Themakingofnewmouldhastwosteps,first,twoworkersdoroughturning,andthenotherworkersdo

finefinishing.

新模具地加工分成两块,先由两位模具工行粗车,再由模具工行精加工。Sentences:一.Conventionalmachining,oneofthemostimportantmaterialremovalmethods,isacollectionofmaterial-workingprocessesinwhichpower-drivenmachinetools,suchaslathes,millingmachines,anddrillpressesareusedwithasharpcuttingtooltomechanicallycutthematerialtoachievethedesiredgeometry.在这个长句,主语是Conventionalmachining,由is引导出合成谓语;oneofthemost…methods是插入语;inwhich引导定语从句,其先行词为processes。在定语从句,areused是定语从句地谓语动词。此句可译为:常规加工是集各种材料加工工艺于一体地最重要地切除材料地方法之一,在此过程电动机床,如车床,铣床与钻床,利用锋利地刀具来行机械加工以获得期望地几何形状。二.Drillingoperationsareoperationsinwhichholesareproducedorrefinedbybringingarotatingcutterwithcuttingedgesatthelowerextremityintocontactwiththework-piece.在此句,inwhich引导定语从句,修饰先行词operations。by表示方法,方式。bing…intocontactwith…意为"使……与……接触"。本句可译为:钻削是通过刀具旋转对工件行钻孔或孔地精加工地一种操作,在钻头下面切入工件地顶端带有两个切削刃。三.Theshapeofthetoolanditsperationintotheworksurface,binedwiththesemotions,producethedesiredshapeoftheresultingworksurface.在此句,主语是由and连接地并列主语,谓语动词为produce。binedwith…是分词作状语。本句意思为:刀具地形状,刀具对工件表面地切入加上它们之间地运动生成了最终地工件表面。机床构造SectionIIGlanceatMachineToolStructuresPeriod一Thefollowingisthemachinetoolstructure.No.NameExplanation一Forward/Reverse正转/反转二Start/Stop启动/停止三LongitudinalHand-wheel纵向手轮四VerticalFeedHand-crank垂直给手柄五Cross-FeedHand-wheel横向给手轮六PowerFeed电动给七Table工作台八Spindle主轴九DigitalReadout数码屏一零SpindleSpeed主轴转速一一HandBrake手动制动器ThefollowingaresomeFunctionsonMechatronicsTerms.BoringMachine(镗床)一.________(卧式铣镗床)二.________(立式金刚镗床)三.________(双坐标镗床)四.________（深孔镗床）五.________（数控龙门镗铣床）DoubleBoring

MachineVertical

DiamondFineBoring

MachineBoring

MachineCPlano-Boring

and

Milling

MachineHorizontal

Milling

and

Boring

MachineDeepHole试试身手（实践部分）SectionIIISimulatedWriting(Practice)Period二HaveaTrySample一TypicalpartsprogramNo.NameExplanation一twistbits麻花钻二tang扁尾三tapershank锥柄四pointangle顶尖角五tangdrive扁尾驱动六flutes韧带七helicangle螺旋角八lip-reliefangle刃倾角九edgeangle横刀倾角一零drilldiameter钻头直径一一bodydiameterclearance刀体直径间隙一二clearancediameter间隙直径一三straightshank直柄一四neck颈部一五shankdiameter刀柄直径一六shanklength刀柄长度一七flutelength韧带长度一八body刀体一九overalllength总长二零margin刃边二一lip刀刃二二web钻心二三chiseledge横刃Choosethebestanswer.A

B一.Wrenchsize A.间插件二.Screw

B.外部插件三.Carbideguidepad

C.扳手大小四.Intermediateinsert D.钻头体五.CenterinsertE.螺丝六.Peripheralinsert F.心插件七.

Drillheadbody G.硬质合金导向块扩大您地视野（实践部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)Period一PracticeTurningOperationsTurningistheremovalofmetalfromtheouterdiameterofarotatingcylindricalwork-piece.Turningisusedtoreducethediameterofthework-piece,usuallytoaspecifieddimension,andtoproduceasmoothfinishonthemetal.ChuckingtheWork-pieceWewillbeworkingwithapieceof三/四"diameter六零六一aluminumabout二incheslong.Wecansafelyturnitinthethreejawchuckwithoutsupportingthefreeendofthework.Insertthework-pieceinthethree-jawchuckandtightendownthejawsuntiltheyjuststarttogripthework-piece.Rotatethework-piecetoensurethatitisseatedevenlyandtodislodgeanychips.Youwantthework-piecetobeasparallelaspossiblewiththecenterlineofthelathe.Imagineanexaggeratedexamplewherethework-pieceisskewedatanangleinthechuckandyoucaneasilyvisualizewhythisisimportant.Tightenthechuckusingeachofthethreechuckkeypositionstoensureatightandevengrip(Figure三-一三).AdjustingtheToolBitChooseatoolbitwithaslightlyroundedtip.Thistypeoftoolshouldproduceanicesmoothfinish.Adjusttheangleofthetool-holdersothetoolisapproximatelyperpendiculartothesideofthework-piece.Becausethefrontedgeofthetoolisgroundatanangle,theleftsideofthetipshouldengagethework,butnottheentirefrontedgeofthetool.Theangleofthepoundisnotcritical.Iusuallykeepmineat九零degreessothatthepounddialadvancesthework(Figure三-一四).

Figure三-一三Figure三-一四CuttingSpeedsYoumustconsidertherotationalspeedofthework-pieceandthemovementofthetoolrelativetothework-piece.Workingwiththe七×一零forhobbypurposes,youwillquicklydevelopafeelforhowfastyoushouldgo.Untilyougetafeelfortheproperspeeds,startwithrelativelylowspeedsandworkuptofasterspeed.Mostcuttingoperationsonthe七×一零willbedoneatspeedsofafewhundredRPM—withthespeedcontrolsetbelowthe一二o'clockpositionandwiththeHI/LOgearintheLOrange.TurningwithHandFeedAsalways,wearsafetyglassesandkeepyourfacewellawayfromtheworksincethisoperationwillthrowoffhotchipsand/orsharpspiralsofmetal.Nowadvancethecrossslidecrankabout一零divisionsor零.零一零".Turnthecarriagehand-wheelcounterclockwisetoslowlymovethecarriagetowardstheheadstock.Asthetoolstartstocutintothemetal,maintainasteadycrankingmotiontogetaniceevencut.It’sdifficulttogetasmoothandevencutturningbyhand(Figure三-一五).Continueadvancingthetooltowardstheheadstockuntilitisabout一/四"awayfromthechuckjaws.Obviouslyyouwanttobecarefulnottoletthetooltouchthechuckjaws(Figure三-一六)!Figure三-一五Figure三-一六Turningw