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1、毕业设计说明书MetalheattreatmentA,annealingInfrontofthedescriptionlengbaprocessingmaterialsandsofteningplastictreatmentmethods,ithasbeenusedtheword,thewordannealingwithsimilarmeanings.Thepurposeistoreducecompletelyannealing,hardness,plastic,sometimesalsoincreasedtoimprovethecutti
2、ngperformance,highthissteelisdifficulttoprocessing.Thismethodisusedtoreduceheatstress,refinedgrains,improvethestructureofthematerial.Annealingisnotalwayscanimprovethecuttingmachining,cuttingprocessingawordusedtodescribeseveralfactors,includingmaterialcuttingwhengoodfinish(
3、i.e.smallersurfaceroughness-theabilityofthetranslator.Whenfullyannealing,ordinarylowhardness,lowintensityofcuttingresistancesmaller,less,butusuallyduetotheplasticityandtoughnessistoobigtochipawaywhenthesurfaceofworkpiecesurfaceofworkpiecesurfacequality,scratch,leadstopoorc
4、uttingprocessing.Forthiskindofsteel,annealingmaynotbethemostappropriatetreatment.Manyofthemosthighandcuttingsteelprocessingusuallycanbegreatlyimprovedbyannealingexceptinthesoft,becauseoftheircondition,highhardnessandstrengthforprocessing.AndtheannealingmethodisGongXijustsl
5、owtothesteelwire,insulationaboveaboutforaperiodoftime,makethesametemperatureuniformity,formingmaterials,thentheausteniticorburiedwithfurnacelimeorotherinsulatingmaterialsinslowcooling.Toprecipitationofferriteandpearlitebulkyiron,steelinthesoft,thestrainoftoughnessandminimu
6、m,mustslowcooling.Second,normalizingHowmuchisthefireofsimilarpurposes,butnottheannealingsteelsoftandfinepearlitestate.Notbulky.Steelisrefinedgrains,firecanreleaseofstress,improvestructuralhomogeneityandrestoresomeplastic,hightoughness.Thismethodisoftenusedtoimprovecuttingm
7、achining,reducestress,reducepartmachiningorlimitationofdeformation.IsthefirewillchromatographymethodisGuoGongXiGangsteelorslowheated33毕业设计说明书toAc3respectively,Accmlineoron-lineinsulationforaperiodoftimetoform,andintheausteniticstationaryairslowcooling.Shouldnoticemore,Gong
8、XicompositionofcarbonsteelneedstobeheatedtoAccmlineabove,notAc1lineabovetheannealing.Thep
