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1、《专业英语论文考核》专业年级机械电子141姓名韦继虎学号1611140109指导教师董文彬完成时间2017年6月10日窗体顶端ApplicationandDevelopmentofLightweightMaterialforAutomobile窗体底端AbstractCarlightweightisanimportantmeanstoachieveenergy-savingemissionreductionandmethods,inimprovingthefueleconomyandenvironmentalprotectionhasa
2、nimportantrole.Atpresent,thelightweightnewmaterialisthemainwayofthecurrentbodyweightreduction,throughthemulti-materialstructureoptimization,bothtoimprovevehicleperformance,butalsosignificantlyreducethequality.Thischapterdiscussestheperformanceandapplicationofseverallight
3、weightmaterials,describesthedevelopmentoflightweightmaterialsintheautomotiveindustryandtheapplicationofthetrendKeywords:automotive；lightweight；lightweightmaterialsPreface窗体顶端窗体顶端Thestudyoflightweightcarisamainstreamofmoderncardesignandmanufacturing.Carlightweight,istoens
4、urethestrengthandsafetyofthecarunderthepremiseofthecarasmuchaspossibletoreducethequalityofthepreparation,therebyenhancingthevehicle'spower,reducefuelconsumptionandreduceexhaustpollution.Datashowthatifthecartoreducethequalityof10%,fuelefficiencycanbeincreasedby6%to8%,fuel
5、consumptioncanbereducedby6%to10%.Fuelconsumptiondecline,emissionsalsodecreased,whileresourceutilizationincreased,extendedlifeofthecar,theuseofperformancehasimprovedsignificantly.Carbodyqualityaccountsforabout50%ofthequalityofthevehicle,itisclearthatthelightweightbodyfort
6、hevehiclelightweightplayapivotalrole[1].Atpresent,thecarbodyweightreductionhastwomainresearchdirections:First,theuseoflightweightmaterials;Second,optimizethestructure.Structuraloptimizationpotentialspacehasbeenverysmall,thegradualuseoflightweightnewmaterialsisthecurrentb
7、odyofoneofthemainmeansoflightweight.1NewhighstrengthsteelInrecentyears,withtheprogressofmetallurgicaltechnology,onthebasisofhigh-strengthsteel,withultra-lowcarbonasthebasiccharacteristics,andgraduallyformedwithdeepdrawing,highstrength,bakinghardeningperformanceofnewhigh-
8、strengthsteel.Atpresent,theuseofhigh-strengthautomotivebodyismainlysheetmetalandpipe.Mainly:(1)BHsteel(
