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外文翻译--加工介绍 英文版.pdf

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外文翻译--加工介绍 英文版.pdf

17200812NEWSMECHANICALENGLISHARTICLEINTRODUCTIONOFMACHININGHOSKINS,JOSIAHABSTRACTMACHINERYMANUFACTURINGINDUSTRYONTHEWORLDECONOMYPLAYSANIMPORTANTROLE,ANDTHEMACHININGPROCESSISTHEESTABLISHMENTOFMACHINERYMANUFACTURINGTECHNOLOGYANDANIMPORTANTPARTOFTHECRITICALWORKINTHISPAPER,THEOUTPUTSHAFTISAFIXTUREOFTHEPROCESSINGTECHNOLOGYANDDESIGN,FOCUSEDONSEVERALIMPORTANTPROCESSINGONTHESURFACEOFACERTAINSIZE,SHAPE,LOCATIONREQUIREMENTS,THEREARESTILLSOMESTRENGTH,SURFACEROUGHNESS,ANDOTHERREQUIREMENTS,BUTTHESEWILLBEREFLECTEDINTHETEXTKEYWORDSMANUFACTURING;OUTPUTSHAFT;PROCESSINGTECHNOLOGY;FIXTUREHAVEASHAPEASAPROCESSINGMETHOD,ALLMACHININGPROCESSFORTHEPRODUCTIONOFTHEMOSTCOMMONLYUSEDANDMOSTIMPORTANTMETHODMACHININGPROCESSISAPROCESSGENERATEDSHAPE,INTHISPROCESS,DRIVERSDEVICEONTHEWORKPIECEMATERIALTOBEINTHEFORMOFCHIPREMOVALALTHOUGHINSOMEOCCASIONS,THEWORKPIECEUNDERNOCIRCUMSTANCES,THEUSEOFMOBILEEQUIPMENTTOTHEPROCESSING,HOWEVER,THEMAJORITYOFTHEMACHININGISNOTONLYSUPPORTINGTHEWORKPIECEALSOSUPPORTINGTOOLSANDEQUIPMENTTOCOMPLETEMACHININGKNOWTHEPROCESSHASTWOASPECTSSMALLGROUPOFLOWCOSTPRODUCTIONFORCASTING,FORGINGANDMACHININGPRESSURE,EVERYPRODUCTIONOFASPECIFICSHAPEOFTHEWORKPIECE,EVENASPAREPARTS,ALMOSTHAVETOSPENDTHEHIGHCOSTOFPROCESSINGWELDINGTORELYONTHESHAPEOFTHESTRUCTURE,TOALARGEEXTENT,DEPENDONEFFECTIVEINTHEFORMOFRAWMATERIALSINGENERAL,THROUGHTHEUSEOFEXPENSIVEEQUIPMENTANDWITHOUTSPECIALPROCESSINGCONDITIONS,CANBEALMOSTANYTYPEOFRAWMATERIALS,MECHANICALPROCESSINGTOCONVERTTHERAWMATERIALSPROCESSEDINTOTHEARBITRARYSHAPEOFTHESTRUCTURE,ASLONGASTHEEXTERNALDIMENSIONSLARGEENOUGH,ITISPOSSIBLEBECAUSEOFAPRODUCTIONOFSPAREPARTS,EVENWHENTHEPARTSANDSTRUCTUREOFTHEPRODUCTIONBATCHSIZESARESUITABLEFORTHEORIGINALCASTING,FORGINGORPRESSUREPROCESSINGTOPRODUCE,BUTUSUALLYPREFERMACHININGSTRICTPRECISIONANDGOODSURFACEFINISH,MACHININGTHESECONDPURPOSEISTHEESTABLISHMENTOFTHEHIGHPRECISIONANDSURFACEFINISHPOSSIBLEONTHEBASISOFMANYPARTS,IFANYOTHERMEANSOFPRODUCTIONBELONGINGTOTHELARGESCALEPRODUCTION,WELLMACHININGISALOWTOLERANCEANDCAN18200812NEWSMECHANICALENGLISHARTICLEMEETTHEREQUIREMENTSOFSMALLBATCHPRODUCTIONBESIDES,MANYPARTSONTHEPRODUCTIONANDPROCESSINGOFCOARSEPROCESSTOIMPROVEITSGENERALSHAPEOFTHESURFACEITISONLYNECESSARYPRECISIONANDCHOOSEONLYTHESURFACEMACHININGFORINSTANCE,THREAD,INADDITIONTOMECHANICALPROCESSING,ALMOSTNOOTHERPROCESSINGMETHODFORPROCESSINGANOTHEREXAMPLEISTHEBLACKSMITHPIECESKEYHOLEPROCESSING,ASWELLASTRAININGTOBECONDUCTEDIMMEDIATELYAFTERTHEMECHANICALCOMPLETIONOFTHEPROCESSINGPRIMARYCUTTINGPARAMETERSCUTTINGTHEWORKPIECEANDTOOLBASEDONTHEBASICRELATIONSHIPBETWEENTHEFOLLOWINGFOURELEMENTSTOFULLYDESCRIBETHETOOLGEOMETRY,CUTTINGSPEED,FEEDRATE,DEPTHANDPENETRATIONOFACUTTINGTOOLCUTTINGTOOLSMUSTBEOFASUITABLEMATERIALTOMANUFACTURE,ITMUSTBESTRONG,TOUGH,HARDANDWEARRESISTANTTOOLGEOMETRYTOTHETIPPLANEANDCUTTERANGLECHARACTERISTICSFOREACHCUTTINGPROCESSMUSTBECORRECTCUTTINGSPEEDISTHECUTTINGEDGEOFWORKPIECESURFACERATE,ITISINCHESPERMINUTETOSHOWINORDERTOEFFECTIVELYPROCESSING,ANDCUTTINGSPEEDMUSTADAPTTOTHELEVELOFSPECIFICPARTSWITHKNIVESGENERALLY,THEMOREHARDWORKPIECEMATERIAL,THELOWERTHERATEPROGRESSIVETOOLTOSPEEDISCUTINTOTHEWORKPIECESPEEDIFTHEWORKPIECEORTOOLFORROTATINGMOVEMENT,FEEDRATEPERROUNDOVERTHENUMBEROFINCHESTOTHEMEASUREMENTWHENTHEWORKPIECEORTOOLFORRECIPROCATINGMOVEMENTANDFEEDRATEONEACHTRIPTHROUGHTHEMEASUREMENTOFINCHESGENERALLY,INOTHERCONDITIONS,FEEDRATEANDCUTTINGSPEEDISINVERSELYPROPORTIONALTO。DEPTHOFPENETRATIONOFACUTTINGTOOLTOINCHESDOLLARS–ISTHETOOLTOTHEWORKPIECEDISTANCEROTARYCUTTINGITTOTHECHIPOREQUALTOTHEWIDTHOFTHELINEARCUTTINGCHIPTHICKNESSROUGHTHANFINISHING,DEEPERPENETRATIONOFACUTTINGTOOLDEPTHWEARSOFCUTTINGTOOLWEALREADYHAVEBEENPROCESSEDANDTHERATTLEOFTHECOUNTLESSCRACKSEDGETOOL,WELEARNTHATTOOLWEARAREBASICALLYTHREEFORMSFLANKWEAR,THEFORMERFLANKWEARANDVNOTCHWEARFLANKWEAROCCURREDINBOTHTHEMAINBLADEOCCURREDVICEBLADEONTHEMAINBLADE,SHOULDERREMOVEDBECAUSEMOSTMETALCHIPMANDATE,WHICH19200812NEWSMECHANICALENGLISHARTICLERESULTEDINANINCREASECUTTINGFORCEANDCUTTINGTEMPERATUREINCREASE,IFNOTALLOWEDTOCHECK,THATCOULDLEADTOTHEWORKPIECEANDTHETOOLVIBRATIONANDPROVIDEFOREFFICIENTCUTTINGCONDITIONSMAYNOLONGEREXISTVICEBLADEDON,ITISDETERMINEDWORKPIECEDIMENSIONSANDSURFACEFINISHFLANKWEARSIZEOFTHEPOSSIBLEFAILUREOFTHEPRODUCTANDSURFACEFINISHAREALSOINFERIORINMOSTACTUALCUTTINGCONDITIONS,ASTHEPRINCIPALINTHEFORMERFIRSTDEPUTYFLANKBEFOREFLANKWEAR,WEARARRIVALENOUGH,TOOLWILLBEEFFECTIVE,THERESULTSAREMADEUNQUALIFIEDPARTSASTOOLSTRESSONTHESURFACEUNEVEN,CHIPANDFLANKBEFORESLIDINGCONTACTZONEBETWEENSTRESS,INSLIDINGCONTACTTHESTARTOFTHELARGEST,ANDINCONTACTWITHTHETAILOFZERO,SOABRASIVEWEARINTHEREGIONOCCURREDTHISISBECAUSETHECARDCUTTINGEDGETHANTHENEARBYSETTLEMENTSNEARTHEMORESERIOUSWEAR,ANDBLADEDCHIPDUETOTHEVICINITYOFTHEFORMERFLANKANDLOSTCONTACTWEARLIGHTERTHISRESULTSFROMACERTAINDISTANCEFROMTHECUTTINGEDGEOFTHESURFACEFORMEDBEFORETHEKNIFEPOINTMAPIT,WHICHISUSUALLYCONSIDEREDBEFOREWEARUNDERNORMALCIRCUMSTANCES,THISISWEARCROSSSECTIONALSHAPEOFANARCINMANYINSTANCESANDFORTHEACTUALCUTTINGCONDITIONS,THEFORMERFLANKWEARCOMPAREDTOFLANKWEARLIGHT,THEREFOREFLANKWEARMOREGENERALLYASATOOLFAILUREOFSCALESIGNSBUTBECAUSEMANYAUTHORSHAVESAIDINTHECUTTINGSPEEDOFTHEINCREASE,MAETOSURFACETEMPERATURETHANTHEKNIFESURFACETEMPERATURESHAVERISENFASTERBUTBECAUSEANYFORMOFWEARRATEISESSENTIALLYTEMPERATURECHANGESBYTHESIGNIFICANTIMPACTTHEREFORE,THEFORMERUSUALLYWEARINHIGHSPEEDCUTTINGHAPPENTHEMAINTOOLFLANKWEARTHETAILISNOTPROCESSEDWITHTHEWORKPIECESURFACEINCONTACT,THEREFOREFLANKWEARTHANWEARALONGWITHTHEENDSMOREVISIBLE,WHICHISTHEMOSTCOMMONTHISISBECAUSETHELOCALEFFECT,WHICHISASROUGHONTHESURFACEHASHARDENEDLAYER,THISEFFECTISBYCUTTINGINFRONTOFTHEHARDENINGOFTHEWORKPIECENOTJUSTCUTTING,ANDASOXIDATIONSKIN,THEBLADELOCALHIGHTEMPERATUREWILLALSOCAUSETHISEFFECTTHISPARTIALWEARNORMALLYREFERREDTOASPITSEXUALWEAR,BUTOCCASIONALLYITISVERYSERIOUSDESPITETHEEMERGENCEOFTHEPITSONTHECUTTINGTOOLNATUREISNOTMEANINGFULIMPACT,BUTOFTENPITSGRADUALLYBECOMEDARKERIFCUTTINGCONTINUEDTHECASE,THENTHERECUTTERFRACTURECRISISIFANYFORMOFSEXUALALLOWEDTOWEAR,EVENTUALLYWEARRATEINCREASEOBVIOUSLYWILLBEATOOLTODESTROYFAILUREDESTRUCTION,THATWILLNOLONGERTOOLFOR20200812NEWSMECHANICALENGLISHARTICLECUTTING,CAUSETHEWORKPIECESCRAPPED,ITISGOOD,CANCAUSESERIOUSDAMAGEMACHINEFORVARIOUSCARBIDECUTTINGTOOLSANDFORTHEVARIOUSTYPESOFWEAR,INTHEEVENTOFASERIOUSLAPSE,ONTHETOOLTHATHASREACHEDTHEENDOFTHELIFECYCLEBUTFORVARIOUSHIGHSPEEDSTEELCUTTINGTOOLSANDWEARBELONGINGTOTHENONUNIFORMITYOFWEAR,HASBEENFOUNDWHENTHEWEARANDEVENTOALLOWFORASERIOUSLAPSE,THEMOSTMEANINGFULISTHATTHETOOLCANREMILLUSE,OFCOURSE,INPRACTICE,CUTTINGTHETIMETOUSETHANTHESHORTTIMELAPSESEVERALPHENOMENAAREONETOOLSERIOUSLAPSEBEGANFEATURESTHEMOSTCOMMONISTHESUDDENINCREASECUTTINGFORCE,APPEAREDONTHEWORKPIECEBURNINGRINGPATTERNSANDANINCREASEINNOISETHEEFFECTOFCHANGESINCUTTINGPARAMETERSONCUTTINGTEMPERATURESINMETALCUTTINGOPERATIONSHEATISGENERATEDINTHEPRIMARYANDSECONDARYDEFORMATIONZONESANDTHISRESULTSINACOMPLEXTEMPERATUREDISTRIBUTIONTHROUGHOUTTHETOOL,WORKPIECEANDCHIPATYPICALSETOFISOTHERMSISSHOWNINFIGUREWHEREITCANBESEENTHAT,ASCOULDBEEXPECTED,THEREISAVERYLARGETEMPERATUREGRADIENTTHROUGHOUTTHEWIDTHOFTHECHIPASTHEWORKPIECEMATERIALISSHEAREDINPRIMARYDEFORMATIONANDTHEREISAFURTHERLARGETEMPERATUREINTHECHIPADJACENTTOTHEFACEASTHECHIPISSHEAREDINSECONDARYDEFORMATIONTHISLEADSTOAMAXIMUMCUTTINGTEMPERATUREASHORTDISTANCEUPTHEFACEFROMTHECUTTINGEDGEANDASMALLDISTANCEINTOTHECHIPSINCEVIRTUALLYALLTHEWORKDONEINMETALCUTTINGISCONVERTEDINTOHEAT,ITCOULDBEEXPECTEDTHATFACTORSWHICHINCREASETHEPOWERCONSUMEDPERUNITVOLUMEOFMETALREMOVEDWILLINCREASETHECUTTINGTEMPERATURETHUSANINCREASEINTHERAKEANGLE,ALLOTHERPARAMETERSREMAININGCONSTANT,WILLREDUCETHEPOWERPERUNITVOLUMEOFMETALREMOVEDANDCUTTINGTEMPERATURESWILLREDUCEWHENCONSIDERINGINCREASEINUNDEFORMEDCHIPTHICKNESSANDCUTTINGSPEEDTHESITUATIONISMORECOMPLESANINCREASEINUNDEFORMEDCHIPTHICKNESSANDCUTTINGSPEEDTHESITUATIONISMORECOMPLEXANINCREASEINUNDEFORMEDCHIPTHICKNESSTENDSTOBEASCALEEFFECTWHERETHEAMOUNTSOFHEATWHICHPASSTOTHEWORKPIECE,THETOOLANDCHIPREMAININFIXEDPROPORTIONSANDTHECHANGESINCUTTINGTEMPERATURETENDTOBESMALLINCREASEINCUTTINGSPEED,HOWEVER,REDUCETHEAMOUNTOFHEATWHICHPASSESINTOTHEWORKPIECEANDTHISINCREASETHETEMPERATURERISEOFTHECHIPINPRIMARYDEFORMATION

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