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1、大连交通大学信息工程学院2011届本科生毕业设计（论文）外文翻译Adieselengineworks【Abstract】Indieselenginecylinder,thepistonpartofthecycleinthecompressedgases,andinanotherpartoftheworkcycleofthecombustiongasmixturewithinthecylindersothepistontopsurfaceexpansionhighpressure(about116~120Kgf/cm2)underhi
2、ghtemperature(about569°C)gasrole,andthepressurethroughthepistonpin,connectingrodtothecrankshaft.Canbeseenthatthepistonisalongtimeunderhightemperatureandhighpressureincontinuousreciprocatingmotionoftheload,itsloadandworkingconditionswereappalling.Duringthedesignprocesso
3、fthepistonwillbedesignedtoensurelong-termstabilityoftheworkpiston.Thedesignoftheworkdonebyabriefintroductionasfollows:DieselEnginePiston180Creasonableprocessingtechnologyisimportant,theroleofpartsandtechnologyprogramanalysis,preparationofroughformandprocessmanufacturin
4、gline,throughtheanalysis,comparison,useoftherelativeconcentrationofprocessingprograms,andultimatelymorereasonabletodeterminethemechanicallineprocessing.Thedevelopmentprocessofroughlinethemainconsideration,finishingarrangements,choiceofprocessingmethods,centralizedandde
5、centralizedprocesses,suchasprocessingtheorderrequirements.Thendeterminetheallowance,processsize,aftertheanalysisofthecharacteristicsoftheprocess,selecttheappropriateprocessingequipmentandtechnicalequipment.Calculatedlook-uptabletodeterminethenextmajorpistoncuttingproce
6、ssandthemappingofprocessescard,thedesignofthefinalfixture.Fixturedesign,itisnecessarytotakevariousaspectsintoaccount,thestrictrequirementsofthefixtureadirectimpactonthesurfaceoftheworkpieceprocessingpositionaccuracy.Therefore,themachinetooldesignfixturedesignisanimport
7、anttaskistheprocessingofoneofthemostactive.Duringthegraduationprojectinaspeciallydesignedpositioningaccuracy,simplestructureandeasy-to-useprecisionpinholeboringjig.Keywords:Piston;Technology;processingequipment;cutting;FixtureAnytypeofmachinethatobtainsmechanicalenergy
8、directlyfromtheexpenditureofthechemicalenergyoffuelburnedinacombustionchamberthatisanintegralpartoftheengine.Fourprin
