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1、冲压模具材料的选用及热处理要求（Selectionofstampingdiematerialandheattreatmentrequirement）Stampingdiematerialselectionandheattreatmentrequirements.Txtlifeisoutof,notwanttocomeout.Putdownisonce,cannotputdownismemory.WhereverIam,Ionlyhaveaturningdistancefromyou.Selectionofblankingdi
2、ematerialandheattreatmentrequirementTheblankingdiematerialshouldconsiderbatchworkpieceproduction,ifthevolumeisnothighthereisnoneedtoselectthelifeofdiematerial;shouldalsoconsiderwashedworkpiecematerials,differentmaterialsforthemouldmaterialsarealsodifferent.Forpunch
3、ingdie,wearresistanceisanimportantfactorindeterminingthedielife,dependsonthewearresistancesteelcarbideinhardphaseconditionandmatrixhardness,bothhigherhardness,themorethenumberofcarbideisbetterwearresistance.Theinferiorandcommonstampingdiesteelwearresistancearecarbo
4、ntoolsteelalloytoolsteel-steel-steel-GaoTangaomatrixofhighspeedsteel-steelbondedcarbide-hardalloy.Inaddition,theinfluenceofthethickness,shape,sizeandprecisionrequirementsoftheworkpieceonthematerialselectionofthemoldmustbeconsidered.1.traditionaldiesteel,foralongtim
5、e,thedomesticsheetblankingdiesteelforT10A,CrWMn,9Mn2V,Cr12andCr12MoVandsoon.Amongthem,T10Aiscarbontoolsteel,withcertainstrengthandtoughness.Buttheabrasionresistanceisnothigh,thequenchingiseasytodeformationandcrack,andthehardenabilityispoor.Itisonlysuitableforthebla
6、nkingdiewithsimpleshape,smallsizeandsmallquantity.T10Acarbontoolsteelheattreatmentprocessis:760~810degreesofwateroroilquenching,160~180degreestempering,hardness59~62HRC.CrWMnand9Mn2Varehighcarbonandlowalloysteel.Quenchingiseasytooperateandhardenabilityisbetterthanc
7、arbontoolsteel.Deformationiseasytocontrol.Buttheabrasionresistanceandtoughnessarestilllow.Itisappliedtothepunchingdiewithmediumvolumeandcomplicatedworkpieceshape.CrWMnsteelheattreatmentprocessis:quenchingtemperature820~840degrees,oilcold,temperingtemperature200degr
8、ees,hardness60~62HRC.Theheattreatmentprocessof9Mn2Vsteelis:quenchingtemperature780~820DEGC,oilcold,temperingtemperature150~200DEGC,aircooling,har
