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1、模具高速铣削加工技术及其数控编程（HighspeedmillingtechnologyofdieandNCprogramming）HighspeedmillingtechnologyofdieandNCprogrammingHighspeedmachiningcannotonlygreatlyimprovetheproductionefficiency,butalsocanimprovethemachiningprecisionandsurfacequality,efficientprocessing,somespecial
2、materialstosolvesomeoftheconventionalprocessinginthehighspeedmachiningtechnologyhasattractedgreatattentionintheworld.Inthispaper,thekeytechnologiesofhighspeedmachiningareexpoundedfromtheaspectsofmachinetools,cuttingtools,materialsandCAMNCprogramming.Finally,twoexam
3、plesofhighspeedmachiningaregiven.I.PrefaceAsthekeytoolingofmouldpressingproducts,thedesignandproductioncycleofmouldbecomethedecisivefactortodecidethedevelopmentcycleofnewproduct.Atpresentindustryofdevelopedcountriesinaerospace,automobileandmachinery,mold,machinefir
4、stthankstothenewtechnology,theindustrytoimproveproductquality,reducecost,gaincompetitiveadvantageinthemarket.Intheautomotiveindustry,thedevelopmentcycleofnewcarsinthepastisgenerally10years,nowshortenedto2~3years.Ford,generalmotors,TOYOTAandothercompaniesofthenewcar
5、typedevelopmentcycleisonly1andahalfyears,allofwhichbenefitfromtheenterprisemolddesignandmanufacturingmeansofmodernization.Highspeedcuttingtechnologyhasbeengraduallyappliedtotheprocessingofcastironandaluminumalloy,especiallytheprocessingoflargestampingdie,die,diecas
6、tingmouldandinjectionmould,inordertoreducetheprocessingtimeanddevelopmenttimeandimprovethedimensionaltolerancesandsurfaceconsistency.Thehighspeedmachiningtechnologyismainlyusedintheautomotiveindustry,moldindustry,aerospaceindustry,especiallyinthefieldofcomplexsurfa
7、cemachining,theworkpieceitselftoolsystemorrigidrequirementsofhigherprocessingareas,showsstrongfunction.Theresearchandapplicationofhigh-speedmachiningtechnologybeganin1990s,ismainlyusedinmould,aviation,aerospaceandautomobileindustry,butthehighspeedcuttingmachine,CNC
8、adoptshighspeedcuttingtoolandCAD/CAMsoftwaremainlyimported.Two、keytechnologiesofhighspeedcuttingAsoneofthemostimportantadvancedmanufacturingtechn
