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《冲裁间隙（blanking clearance）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、冲裁间隙（Blankingclearance）Blankingclearanceratio(%)Materials,classI,classII,classIIILowcarbonsteel:A3,B2,08F,10F,No.10,No.6~14,20,14~20,20~25Mediumcarbonsteel:No.45,No.50,cuttingalloy10~18,18~25.25~32Stainlesssteel:4Cr13,1Cr18Ni9TiHighcarbonsteel:T8A,T1
2、0A16~25,25~32,32~38Springsteel:65MnPurealuminum:L2~L54~10,10~15,15~20Aluminumalloy:LF21(soft)Brass:H62(soft)Copper:T1,T2,T3Brass:(hard)6~12.12~18.18~24Copper:(hard)Leadedbrass:Aluminum:(hard)8~15.15~22.22~28ECuSn-CAluminiumbronzeBerylliumbronzeMagnes
3、iumalloy3~5Siliconsteel5~10.10~18Redcardboard,cardboard,plasticboard1~44~8-------------------------------------------------------------------------1,theabovetableappliestometalmaterialsbelowt=10mm,thethicknessofthegapshouldbegreaterthanthevalue.2,non
4、-metallicgapratio:Mica,paper,leather(0.5~1.5%).3,thenoncircularholethantheroundholegapshouldbelarger,punchingthanblankinggapshouldbelarge,smallholeclearancegreater.4,carbideblankingdieclearancethanthesteeldieblankinggapto20%to30%,high-speedpressmoldc
5、learancetoincrease,Thestampingspeedmorethan200times/min,thegapvalueincreasestoabout10%.5,thegapvalueofhotstampingshouldbereduced.Whentheconcavedieisinclinedwall,theclearancevalueshouldbereduced.6,thegeneralblankingcircumstances,theuseofsmallerclearan
6、ce,canguaranteequality,butthedielifeisshorter.ChooselargerclearancedieTheservicelifeisprolonged,butthequalityofthestampingpartswilldecrease.Hello,inordertoincreaseyourlevelofknowledge,ItellyouwhatIknow(sorry,it'salittledifficult):1in(inches)=2.54cm()
7、,1lb(YingBang)=0.454kg(kg)=0.454*9.807N(ox)ConversionformulaTheareaconversion1sqkm(km2),=100ha(HA),=247.1acres(acre),=0.386squaremiles(mile2)1squaremeters(M2),=10.764squarefeet(ft2),1squareinches(in2),=6.452squarecentimeters(cm2)1hectares(HA),=10000s
8、quaremeters(M2),=2.471acres(acre)1acres(acre),=0.4047ha(HA),=4.047*10-3km2(km2),=4047squaremeters(M2)1acres(acre),=0.4047ha(HA),=4.047*10-3km2(km2),=4047squaremeters(M2)1squarefeet(ft2),=0.093squaremeters(M2),1squaremeters(M2),=10.764squarefeet(ft2)1
