外文翻译碳纤维增强砖钻削分层的研究.doc

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1、附录A外文翻译一原文部分Studyofdelaminationindrillingcarbonfiberreinforcedplastics(CFRP)usingdesignexperimentsJ.P.Davim*,PedroReisDepartmentofMechanicalEngineering,UniversityofAveiroCampusSantiago,3810・193Aveiro,PortugalAbstractInthispaperispresentedanewcomprehensiveapproach

2、toselectcuttingparametersfordamage-freedrillingincarbonfiberreinforcedepoxycompositematerial.TheapproachisbasedonacombinationofTaguchi_stechniquesandontheanalysisofvariance(ANOVA).Aplanofexperiments,basedonthetechniquesofTaguchi,wasperformeddrillingwithcuttingpar

3、ametersprefixedinanautoclavecarbonfiberreinforcedplastic(CFRP)laminate.TheANOVAisemployedtoinvestigatethecuttingcharacteristicsofCFRP_susinghighspeedsteel(HSS)andCementedCarbide(K10)drills.Theobjectivewastoestablishacorrelationbetweencuttingvelocityandfeedratewit

4、hthedelaminationinaCFRPlaminate.Thecorrelationwasobtainedbymultiplelinearregression.Finally,confirmationtestswereperformedtomakeacomparisonbetweentheresultsforeseenfromthementionedcorrelation._2002ElsevierScienceLtd.Allrightsreserved.Keywords:Drilling;Carbonfiber

5、reinforcedplastics;Delaminationfactor;Taguchi_stechniques;Analysisofvariance.1.IntroductionOwingtothegrowinguseofcompositematerials,specificallythefiberreinforcedplastics(FRP)outsidethedefenceindustryandtheaerospaceindustry,theunitcostreplacestheperformanceatanyc

6、ostasthemainconcernforproduction.So,theproductiontechnologies,especiallythemachiningofcomposites,areassumingamoreandmoresignificantroleastheyconditiontheeconomicviabilityoftheproduct.Machiningcompositematerialsisarathercomplextaskowingtoitsheterogeneity,heatsensi

7、tivity,andtothefactthatreinforcementsareextremelyabrasive.Conventionalmachiningmethodsshouldbeadaptedinsuchawaythattheydiminishthermalandmechanicaldamage.Drillingisafrequentlypracticedmachiningprocessinindustryowingtotheneedforcomponentassemblyinmechanicalpiecesa

8、ndstructures.Thedrillingoflaminatecompositematerialsissignificantlyaffectedbythetendencyofthesematerialstodelaminateandthefiberstobondfromthematrixundertheacti