模具专业英语 New

模具专业英语EnglishforDieTechnologyContentsUnit4Unit3Unit2

Unit1Unit5Unit9Unit8Unit7Unit6Unit10高等职业技术教育研究会

审定

主

编

黄星

副主编

赵九九

王咏梅主

审

黄晶

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Unit1PartⅠPartⅡPartⅢPartⅣPartⅤReadingAReadingBNotesNewWordsPhrasesandExpressionsNewWordsPhrasesandExpressionsGlanceattheStructureoftheDieSimulatedWritingCommunicativeSpeakingBroadenYourHorizon

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Unit1PartⅠPartⅡPartⅢPartⅣPartⅤReadingAReadingBNotesNewWordsPhrasesandExpressionsNewWordsPhrasesandExpressionsGlanceattheStructureoftheDieSimulatedWritingCommunicativeSpeakingBroadenYourHorizon

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Unit1PartⅠPartⅡPartⅢPartⅣPartⅤReadingAReadingBNotesNewWordsPhrasesandExpressionsNewWordsPhrasesandExpressionsGlanceattheStructureoftheDieSimulatedWritingCommunicativeSpeakingBroadenYourHorizon

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Unit1PartⅠPartⅡPartⅢPartⅣPartⅤReadingAReadingBNotesNewWordsPhrasesandExpressionsNewWordsPhrasesandExpressionsGlanceattheStructureoftheDieSimulatedWritingCommunicativeSpeakingBroadenYourHorizon

Unit2

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Unit1PartⅠPartⅡPartⅢPartⅣPartⅤReadingAReadingBNotesNewWordsPhrasesandExpressionsNewWordsPhrasesandExpressionsGlanceattheStructureoftheDieSimulatedWritingCommunicativeSpeakingBroadenYourHorizon

Unit2

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Unit1PartⅠPartⅡPartⅢPartⅣPartⅤReadingAReadingBNotesNewWordsPhrasesandExpressionsNewWordsPhrasesandExpressionsGlanceattheStructureoftheDieSimulatedWritingCommunicativeSpeakingBroadenYourHorizon

Unit2

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Unit1PartⅠPartⅡPartⅢPartⅣPartⅤReadingAReadingBNewWordsPhrasesandExpressionsNewWordsPhrasesandExpressionsGlanceattheStructureoftheDieSimulatedWritingCommunicativeSpeakingBroadenYourHorizon

Unit2

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Unit1PartⅠPartⅡPartⅢPartⅣPartⅤReadingAReadingBNewWordsPhrasesandExpressionsNewWordsPhrasesandExpressionsGlanceattheStructureoftheDieSimulatedWritingCommunicativeSpeakingBroadenYourHorizon

Unit2

Unit3

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Unit1PartⅠPartⅡPartⅢPartⅣPartⅤReadingAReadingBNotesNewWordsPhrasesandExpressionsNewWordsPhrasesandExpressionsGlanceattheStructureoftheDieSimulatedWritingCommunicativeSpeakingBroadenYourHorizon

Unit2

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Unit1PartⅠPartⅡPartⅢPartⅣPartⅤReadingAReadingBNotesNewWordsPhrasesandExpressionsNewWordsPhrasesandExpressionsGlanceattheStructureoftheDieSimulatedWritingCommunicativeSpeakingBroadenYourHorizonUnit1ReadingAWhatIsDiesandMoldsWhatisadieoramold?Adieoramoldisahollowed-outblockthatisfilledwithaliquidlikeplastic,glass,metal,orceramicrawmaterials.Theliquidhardensorsetsinsidethemold,adoptingitsshape.Amoldistheoppositeofacast(seecasting).Onehalfofabronzemoldforcastingasocketedspearhead,foundatEastPennard,England.Datedtotheperiod1400-1000BC,itiswithoutparallels(Figure1-1).Moldingistheprocessofmanufacturingbyshapingpliablerawmaterialusingarigidframeormodelcalledapattern.Themanufacturerwhomakesthemoldsiscalledmoldmaker.Areleaseagentistypicallyusedtomakeremovalofthehardened/setsubstancefromthemoldeasier.Unit1Mouldsseparateintoatleasttwohalves(calledthecoreandthecavity)topermittheparttobeextracted;ingeneraltheshapeofapartmustbesuchthatitwillnotbelockedintothemould.Forexample,sidesofobjectstypicallycannotbeparallelwiththedirectionofdraw(thedirectioninwhichthecoreandcavityseparatefromeachother).Theyareangledslightly;examinationofmosthouseholdobjectsmadefromplasticwillshowthisaspectofdesign,knownasdraft.Partsthatare"bucket-like"tendtoshrinkontothecorewhilecoolingand,afterthecavityispulledaway,aretypicallyejectedusingpins.Partscanbeeasilyweldedtogetheraftermoldingtoallowforahollowpart(likeawaterjugordoll'shead)thatcouldn'tphysicallybedesignedasonemould.Morecomplexpartsareformedusingmorecomplexmoulds,whichmayrequiremoveablesections,calledslides,whichareinsertedintothemouldtoformparticularfeaturesthatcannotbeformedusingonlyacoreandacavity,butarethenwithdrawntoallowtheparttobereleased.Somemouldsevenallowpreviouslymoldedpartstobere-insertedtoallowanewplasticlayertoformaroundthefirstpart.Unit1Traditionally,moldshavebeenveryexpensivetomanufacture;therefore,theywereusuallyonlyusedinmassproductionwherethousandsofpartsarebeingproduced.MoldautomationMoldscanbehandoperated,semi-automaticorfullyautomatic.Handoperatedmoldsrequireanoperatortophysicallyremovethemoldfromthepressanddisassembleittoremovethemoldedpart.Theyareusedforverysmallquantities(1-500parts)orpartsthathaveundercuts,threadsorothercomplicatedfeatures.Theyhavelongoperatingcycles(2-5minutesormore)andbynaturearelaborintensivetooperate.Semi-automaticmoldsaretypicallymountedinthepressandrequireanoperatoronlytoperformaspecificoperationofthecycle(i.e.,removeacore,placeaninsert,removethepartfromanundercut).Theycanbeverycosteffectiveforinsertmoldingorwhenquantitiesdonotallowfortheexpenseofcorepulls,camsorunscrewingdevices.Machinecycletimescanapproachthatofautomaticmolds,butsocantheircost.Unit1Fullyautomaticmoldsrunwithnooperator.Theymayutilizeavarietyofmechanicaldevicestofacilitatepartremovalsuchasmoldsweeps,airblasts,spruepickersorrobots.Theymaycontaincorepulls,camstoremoveundercuts,multipleplates,hotrunnerorinsulatedrunnersystems,unscrewingdevicesoranynumberofdevicesandtechniquestoimproveefficiency(Figure2-1).Partsarenormallyfinishedasmoldedwithnopostoperations,beyondvalueaddedoperations,required.Unit1MoldMaterialsMouldsaretypicallyconstructedfromhardenedsteeloraluminium.Thechoiceofmaterialtobuildamouldisprimarilyoneofeconomics.Steelmouldsgenerallycostmoretoconstruct,buttheirlongerlifespanwilloffsetthehigherinitialcostoverahighernumberofpartsmadeinthemouldbeforewearingout.Aluminiummouldscancostsubstantiallyless,andwhendesignedandmachinedwithmoderncomputerizedequipment,canbeeconomicalformoldinghundredsoreventensofthousandsofparts.Unit1Notes：1.Theyareangledslightly;examinationofmosthouseholdobjectsmadefromplasticwillshowthisaspectofdesign,knownasdraft.本句中的madefromplastic为objects的后置定语；全句可译为：经过仔细检查，大多数家用塑料制品都会显示出图纸的标注方向，我们称之为草图。2.Aluminiummouldscancostsubstantiallyless,andwhendesignedandmachinedwithmoderncomputerizedequipment,canbeeconomicalformoldinghundredsoreventensofthousandsofparts.句中when引导时间状语，其中省略了主语aluminiummoulds；全句可译为：铝材模具成本会大大地减少，当用现代计算机设备设计和加工时，用铝材模具定型数以百计、甚至是数以万计的零件会很经济。Unit1die

n.模具mold

n.模具，模hollowed-out

a.中空的ceramicn.陶瓷harden

v.硬化，淬火opposite

n.对称物cast

n.铸件，铸造

v.铸造bronze

n.青铜socket

n.槽

v.有槽spear

n.矛parallel

n.平行线molding

n.成型pliable

a.柔韧的rigid

a.稳固的NewWordsframe

n.架pattern

n.仿制moldmaker

n.模具制造商agent

n.剂mould

n.模型，模具core

n.型芯，模芯cavity

n.型腔，模腔extract

v.取出aspect

n.方面design

n.设计draft

n.拔模斜度bucket-like

a.桶形的shrink

v.收缩eject

v.取出

pin

n.销weld

v.焊接n.粘结physically

adv.根本地moveable

a.可移动的slide

n.滑座，滑块withdraw

v.抽出release

v.松开automation

n.自动化semi-automatic

a.半自动的remove

v.移动，切削press

n.压床disassemble

v.拆开undercut

n.侧向分型thread

n.螺纹intensive

a.密集的cam

n.凸轮unscrew

v.旋松Unit1NewWordsmechanical

a.机械的facilitate

v.使容易blast

n.喷sprue

n.浇注口picker

n.清洗机sweep

n.刮模器runner

n.浇道insulate

v.绝缘efficiency

n.效率construct

v.构成aluminium

n.铝offset

v.抵消substantially

adv.充分地economical

a.经济的Unit1PhrasesandExpressionsrawmaterial

原料datedto

追溯到releaseagent

脱模剂beparallelwith

与…平行bedesignedas

用作massproduction

批量生产bynature

从本质上而言costeffective

划算的allowfor

考虑cycletime

周期wearout

磨损Unit1EXERCISEEXERCISE1MarkthefollowingstatementswithT(True)orF(False)accordingtothepassage.1.Datedtotheperiod1400-1000BC,onehalfofbronzefoundatEastPennard,Englandiswithparallels.2.Mouldsdivideintonotlessthanthreepartstopermittheparttobeextracted.3.Handoperatedmoldshavelongoperatingcycles(1-3minutesormore)andbynaturearelaborintensivetooperate.4.Fullyautomaticmoldsareinoperationwithoutoperator.5.Steelmouldscostmore,buttheyhavelongerlifespan.FFFTTUnit1EXERCISE2TranslatethefollowingphrasesintoChineseorEnglish.1.rawmaterial______________

2._____________脱模剂3.massproduction______________

4._____________周期5.moldsweep_______________

6._____________拖芯7.airblast

_______________8._____________导销9.supportpin_______________10.____________推板原料releaseagent批量生产cycletime模具拆除机corepull气喷装置guidepin支撑模板ejectorplateUnit1EXERCISE3Fillintheblankswiththesuitablewordsorphrasesgivenbelow,changingtheformwherenecessary.

releaseagent，coindie，cam，rawmaterial，

parallel，massproduction，airblast，mold，

cycletime，cavityUnit11.Arodmovedbya

tooperatethevalvesinaninternal-combustionengine.2.ThankstotheInternet,whichisacceleratingthepaceofbusinessandshorteningproject

.3.Inancienttimes,_________wereengravedbyhand,butinmoderntimesthisisdonebymachines.4.Theimportant

ofindustryarecoal,oilandiron.5.A

isasubstanceusedinmouldingthataidsintheseparationofamouldfromthematerialbeingmolded.6.The

seemtocometogetherinthedistance.7.It's

thathasreducedthepricesofcars.8.Metalpouredintoamold

duringthecastingprocesssolidifieswiththepossibilityofshrinkage,segregationorporosity.9.Blastingdamagemayoccurfromeither

orgroundwaves.10.Thiskindof

isconvenienttoassembleanddisassemble,anditsproductionefficiencyishigh.camcycletimecoindiesrawmaterialsreleaseagentparallelsmassproductioncavityairblastmoldUnit1EXERCISE4TranslatetheChinesepartsgiveninthebracketsintoEnglish.1.Thispackagingmachinedesignedforfillingsolidproductsis

______________________________(高速并且全自动).2.Eachbusinesshasitsown____________________________(某一长度的生产周期)thatmayleadtopositiveornegativecashflowsatdifferenttimes.3.Thecostand_________________________（模具和铸模的质量）affecttheeconomicsofproducingaverylargenumberofcomponentsintheautomotiveindustry.4.Thecompanyhassucceededin_________________________(加速模具自动化)tomakeproductionmoreeffective.5.Softwareprogramsareutilizedtoidentifyproblemswith____________________（计算机设备).highspeedandfullyautomaticoperatingcycleofacertainlengthqualityofdiesandmoldsspeedingupmoldautomationcomputerizedequipmentUnit1ReadingBACoinDieAcoindieisoneofthetwometallicpiecesthatareusedtostrikeonesideofacoin.Coiningisacoldworkingprocess(similartoforgingwhichtakesplaceatelevatedtemperature)thatusesagreatdealofforcetoplasticallydeformawork-piece,soitconformstoadie.Adiecontainsanincuseversionoftheimagetobestruckonthecoin.Moderndiesmadeoutofhardenedsteelarecapableofproducingmanyhundredsofthousandsofcoinsbeforetheyareretiredanddefaced.Unit1AncientcoindiesPriortothemodernera,coindiesweremanufacturedindividuallybyhand.Indemandingtimes,suchasthecrisisoftheRomanEmpireinthe3rdcenturyCE,dieswerestillusedevenwhentheybecameverywornorevenwhentheybroke.Theflanswereusuallyhotpriortostriking.OnsomeRomanprovincialcoins,thetongsusedtomovetheheatedflansometimesleftpermanentcenterindentationsonthefinishedcoins.Figure1-3shows1818engravingdepictingthecoiningpressasusedintheRoyalMintUnit1MedievalcoindiesMedievalcoindieswerecreatedinmintsbyguildmembersknownasengravers.Thevastmajorityofmedievalcoinswerecoldstruck.Whilemedievalcoindieswerelargelymadeofiron,somedieshavebeendiscoveredwithasmallregionatthefaceofthediewhichismadeofsteel.AstechnologyandtheeconomychangedoverthecourseoftheMiddleAges,sodidthetechniquesusedtocreatecoindies.Whilemostancientcoindiesusedengravingveryheavily,earlymedievalcoinagewasdominatedbydiescreatedmostlyfrompunches,whichdisplacethemetalofthedieinsteadofremovingit.Thereisevidenceofmedievaldiecuttersusingengravingtoolstolayoutdesigns,andtocreatedetailedpunches.However,engravingonthefaceofthediedidnotbecomecommonplaceuntiltheearlyrenaissance.VerydetailedrecordsexistfortheVenetianmint.Themintmadeanaverageof20,000coinsperday,sotheyweremakingonehammerdieadayandoneanvildieeveryotherday!The"hammer"diesworeoutquickerbecausetheytendedtobesmallerandwerehitdirectlywithahammer,leadingtoseveremushroomingonthetops.Unit1ModerndieproductionTheprocessofmakingdiestostrikecoinsintoday'sminthasquiteafewsteps.First,anartistcreatesalargeplastermodelofthecoin.Theplastermodelisthencoatedwithrubber.Allofthistakesplaceonascaleofaroundeightinches.Next,areducinglathetakesseveraldaystoreducetheimageontoasteelmasterhubinaprocessthathasnotchangedinoverahundredyears.Themasterhubisthentemperedtomakeithard.Asmallnumberofmasterdiesarethenmadefromthemasterhub.Thesearethenusedtomakeworkinghubs.Theworkinghubsarethenusedtomakeworkingdies.Witheachstep,thenumbergoesup.Theworkingdiesarethenusedtostrikecoins.Thefinalstepisthatthediesareusedtostrikeimagesontotheplanchetsothatitbecomesacoin.Mistakescanhappenatanystageofthismanufacturingprocess,andthesemistakesaresomethingthatcertaincollectorslookfor.Forexample,adoubleddieisoftenahighlydesirederror.Strikeerrorsaregenerallyunique,whereasallcoinsstruckwithanerrordiewillhavethesamecharacteristic.Themostfamousdoubleddieinthepasthundredyearsisthe1955doubleddieLincolncent.Unit1CoindierepresentedinothercoinsAcoindieitself,hasbeenthemainmotiveformanycollectorscoinsandmedals.Oneofthemostrecentandfamousone,istheAustrian700YearsCityofHallinTyrolcoin,mintedinJanuary29,2003.ThereversesideofthecoinshowstheGuldinersilvercoin.However,thedesignisnegative,representingacoindie,asareferencetoHall’shistoryasasignificantcentreformintingcoins（Figure1-4）.Unit1metallic

a.金属的strike

v.铸造,打造coining

n.精压，压印加工，铸币forge

v.锻造plastically

adv.塑性地deform

v.变形work-piece

n.工件incuse

a.铸印有花纹的version

n.(一事物的)变化形式(+of)retire

v.报废deface

v.磨损CE(cerium)

n.金属元素铈wear

v.磨损flan

n.用以制硬币的模子NewWordstong

n.火钳indentation

n.刻痕engraving

n.雕刻(术)depict

v.描绘mint

n.造币厂

v.铸造medieval

a.中世纪的engraver

n.雕刻匠punch

n.冲头，凸模cutter

n.切刀detailed

a.精细的commonplace

a.司空见惯的renaissance

n.文艺复兴时期hammer

n.锤子anvil

n.铁砧，砧座severe

a.严重的

Unit1NewWordsreducev.使还原temper

v.回火planchet

n.造币用的金属板collector

n.收藏家desired

a.期望的characteristic

n.特点motive

n.动力reverse

a.反面的negative

a.底片的n.底片mushroom

v.剧变artist

n.能手plaster

n.石膏coat

v.涂rubber

n.橡胶scale

n.刻度lathen.车床hub

n.(轮)毂reducinga.简化的Unit1PhrasesandExpressionsconformto符合priorto在……之前guildmember石匠协会会员overthecourseof在……的过程中theMiddleAges中世纪layout设计hammerdie锤模tendto易于……,倾向于……masterdie母版asareferenceto为……提供参考Unit1EXERCISEEXERCISE5ThissectionwilltestyourabilitytotranslateanEnglishinstructionoftheLineDieintoChinese.AdvantageandDisadvantageofLineDiesLinediesaretoolsthattypicallyarehandorroboticallyloaded.Ofteneachstationthatformsorcutsthesheetmetalrepresentsasingleoperationdie.Hand-(human-)loadedlinediesusuallylendthemselvestolow-productionpartsorthosethataretoobigandmassivetohandlewithautomation.Severallinediesusuallycanbeplacedwithinasinglepress.Thisallowstheoperatortotransferthepartsfromdietodietowithaminimaltraveldistance.Largerlinediesoftenareplacedinindividualpressesclosetogetherinaline,anarrangementreferredtoastandemlinepresses(Figure1).Unit1Somelinedieadvantagesare:◎Theyoftencostlessthanmorecomplicateddies.◎Theycanbetimedtoruntogetherinacommonpress.◎Theoperation'ssimplicityallowstheparttobeturnedoverorrotatedinanyaxisbytheoperatororrobotifnecessary.Thisoftenallowsformorecomplexgeometriestobecreated.◎Smallerindividualtoolsarelighterandcanbehandledwithlower-costdiehandlingequipment.◎Maintainingasinglestationdoesnotrequireremovingallthedies.Commonlinediedisadvantagesare:◎Theyoftencannotcompetewithproductionspeedsachievablewithothermethods,suchasprogressivedies.◎Theyrequireexpensiverobotsorhumanlabor.◎Theyoftenrequireseveralpressestomanufactureasinglepart.Unit1PartIIGlanceattheStructureoftheDieThefollowingistheStructureDiagramoftheDieandMoldSampleUnit11.Stank：Apartusedtoconnectthediecomponentstothemachine.2.Dowelpin：Atypeoffastenerthatisinsertedintoholesintwoadjacentwork-piecestoholdthemtogether.3.Punchholder：Anothertermusedfortheupperdieshoe.4.Backingplate：Aplateusedtosupportthehardwareforthecavityusedinplasticsinjection.5.Punchplate：Ametalplateontowhichthevariouspunchesaremounted.6.Springplugfordowelpin：Alineofcasttypeinasinglestripofmetaldesignedtocompressandbecomesmallerwhenpresentedwithcompressiveloadthatfastensthedowelpin.7.Stripperplatefixingtype：Themetalplatethatcontactsthesheettostripitfromthepunch.8.Dieplate：Ametalplateontowhichthevariousdiesetcomponentsaremounted.Unit19.Dieholder：Anothertermusedforthelowerdieshoe.10.Capscrew：Ascrewthatappearsintheformofhexagon.11.Guidepost：Ahardenedrodpositionedinthelowerdieshoethatfitsintoabushingintheupperdieshoetoguidethepunchduringoperation.12.Blockpunch：Ascrewthatappearsintheformofsquare.13.Guidebushing：Ahardenedsteeltubethatslidesovertheguidepostanddirectstheupperdieshoeduringoperation.14.Material：Thesubstanceorsubstancesoutofwhichathingisorcanbemade.15.Blank：Theoriginalmaterialafterwhichtheproductofthediecanbemadeinvariousoperatingways.Unit1ForReference:ExplanationsoftheDieTermsNo.NameExplanation1Stank模柄2Dowelpin定位销3Punchholder上模座4Backingplate垫板5Punchplate凸模固定板6Springplugfordowelpin松脱防止弹簧塞7Stripperplatefixingtype固定式卸料板8Dieplate凹模板9Dieholder下模座10Capscrew内六角螺栓11Guidepost导柱12Blockpunch方形凸模13Guidebushing导套14Material材料15Blank坯料Unit1EXERCISE6ThefollowingaresomeFunctionsonDieTerms.Afterreadingthem,youarerequiredfirsttochoosetheinterpretationsgiveninColumnCmatchtheFunctionsgiveninColumnA,andthenputthebestanswerintoColumnB.Unit1EGAIBABC1.StankA.上模座2.DowelpinB.凸模固定板3.PunchholderC.凹模板4.BackingplateD.松脱防止弹簧塞5.PunchplateE.模柄6.SpringplugfordowelpinF.下模座7.StripperplatefixingtypeG..定位销8.DieplateH.内六角螺栓9.DieholderI.垫板10.CapscrewJ.固定式卸料板

11.GuidepostK.坯料12.BlockpunchL.材料13.GuidebushingM.方形凸模14.MaterialN.导柱15.BlankP.导套DJCFHNMPLKPartIIISimulatedWritingSectionAHaveaTryThissectionwillhelpyoutounderstandasmallpartprogram,andyoucanseethesimplewayasmallpartprogramismade.SampleXUnit1ZTypicalpartsprogramUnit1ProgramExplanationO0013ProgramidentificationnumberN53TocancelanypreviousworkingzeropointN0010T0303N0010SequencenumberT0303Selecttoolnumber303N00X26.0Z0.0S04G57TosettheworkingzeropointassavedG00Rapidmovement(nocutting)X26.0Xlocation(asadiameter;13formzero)Z0.0ZlocationS500Spindlespeedis500rpm

M04RotatespindlecounterclockwiseN01X100G01Linearinterpolation(cutting)X-0.20Moveonlyinxdirectionuntilyoupassthecenterby(facing)F100Setfeedrateto/min.Unit1N00Z2.0G00Moverapidlyawayfromwork-piece(nocutting)Z2.0themovementisawayfromtheface.N0050X50.0Z50.0Gotoasafelocationawayfromthework-piece[x=50(25fromzero),z=50]tochangethetoolN0060T0404T0404Selecttoolnumber404N00X22.50Z2.0S500G57PS0G00Rapidmovement(nocutting)X22.50Xlocation(asadiameter;11.25formzero)Z2.0ZlocationS500Spindlespeedis500rpmN01Z100G01Linearinterpolation(cutting)Z-30Moveonlyinzdirection(externalturning)F100Setfeedrateto/min.N00X23.0Z2.0S500G00Moverapidlyawayfromwork-piece(nocutting)tolocationx=23.0(11.50fromzero)andz=2.0.Unit1N84X17.5Z-20.0D0=200D2=200D3=650G84TurningcycleformachiningthestepX17.5finaldiameterZ-20lengthofstepisD0=200FinishallowanceinXdirection()D2=200FinishallowanceinZdirection()D3=650Depthofcutineachpass()N00Z2.0G00Moverapidlyawayfromwork-piece(nocutting)Z2.0themovementisawayfromtheface.N0120X50.0Z50.0X50.0Z50.0MovetothetoolchanginglocationN30TheprogramendsUnit1EXERCISE7CompletethefollowingpartprogrambasedontheinformationgiveninEnglishandinreferencetowhatyou’velearntinyourprogrammingcourse.Unit1TypicalpartsprogramProgramExplanation%

C71*N17X+0Y+0Z-20*Definethework-pieceblankN90X+100Y+100Z+0*N99T+0R+6*DefinethetoolN40T17S4500*ToolcallN90Z+250*RetractthetoolN86P01+30P02-1.75*DefineTHREADCUTTINGcycleN70X+20Y+20*Approachhole1N80______(L1.0,L3.0)*Callsubprogram1N90X+70Y+70*Approachhole2N1.0*Callsubprogram1N00Z+*Retracttool,endofmainprogramN1*Subprogram1:ThreadcuttingN36S0*DefineangleofspindleorientationL1.0Unit1N19*Orientspindle(makesitpossibletocutrepeatedly)N01______(G71,G91)X1000*Tooloffsettopreventcollisionduringtoolin-feed(dependentoncorediameterandtool)N90Z-30*MovetostartingdepthN91_____(X+2,Y+2)*ResetthetooltoholecenterN79*CallCycle18N90_____(Z+5,Z+10)*RetracttoolN0*Endofsubprogram1N999999%C71*G91X+2Z+5SectionBDieMaintenanceandRepairThissectionwillhelpyoutounderstandthedierepair,andyoucanseeTypesofQualityDefects.SampleUnit1Twomaintypesofdefectsaretypicallyobservedinstampedautomotivebodycomponents:Surfacedefects,suchascracksandnecking,andformdefects,suchasfall-in,wrinkling,andmarkinglines.Thesestaticdefects,suchassurfaceimprints,arenotprocess-relatedbutinsteadarecausedbycontaminateddieortoolfaces.Thesedefectsarecorrectedbysimplycleaningthedieortoolsurfacebeforestamping.Dynamicdefectsareprocess-relatedandarecausedbytheformingprocess.Manyqualitydefectscanoccurinstamping.(seeFigure1):1.Surfacedefects,suchascracksandnecking2.Formdefects,suchasfall-in,wrinkling,andmarkinglinesThesequalitydefectscanbeclassifiedfurtherasstaticordynamic.◎Staticdefects,suchassurfaceimprints,arenotprocess-relatedbutinsteadarecausedbycontaminateddieortoolfaces.Thesedefectsarecorrectedsimplybycleaningthedieortoolsurfacebeforestamping.◎Dynamicdefectsareprocess-relatedandarecausedbytheformingprocess.Forexample,crackingandneckingcommonlyoccurwhenformabilityofthedeformedsheetmaterialislimited.Side-wallandflangewrinklesarecausedbyhightangentialcompressivestressesinthesheet.Markinglinesoccurwhensheetmaterialundergoeshig