Characterization and op timization of the dynamic tool path of a highly dyna

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1、CIRPJournalofManufacturingScienceandTechnology1(2008)86–91ContentslistsavailableatScienceDirectCIRPJournalofManufacturingScienceandTechnologyjournalhomepage:www.elsevier.com/locate/cirpjCharacterizationandoptimizationofthedynamictoolpathofahighlydynamicmicromillingmachineC.Br

2、echer,C.Wenzel,R.Klar*FraunhoferInstituteforProductionTechnology,Steinbachstrasse17,52074Aachen,GermanyARTICLEINFOABSTRACTArticlehistory:Theminiaturizationofcomponentsinthefieldoflifescience,consumerelectronicsandmicro-electro-Availableonline11November2008mechanicalsystems(MEM

3、S)isbecomingapartofoureverydaylife.Asthemanufacturingofthesecomponentsdemandsinmanycasesthemachiningbymicromillingwithcuttingtoolsdownto100mmKeywords:diameter,highlydynamicmachinetoolsareneededtomachinethemoreandmorecomplexfreeformMachinecharacterizationsurfacesatoptimalproce

4、ssparameters.ThepaperdescribesthedevelopmentofahighlydynamicmillingMicromillingmachinewhichisequippedwithlineardirectdrivesinallaxeswithintegratedimpulsedecouplingunitstoallowhighdynamicsandespeciallyhighjerksatlowimpactonthemachinestructure.Additionallythedevelopmentofametro

5、logyframeisdetailedwhichcanbeusedtocharacterizethedynamictoolpathofmachinetoolstooptimizeitsdynamicsetupandtoincreasetheworkpieceprecisionatminimizedmachiningtime.ß2008CIRP.1.IntroductionBecauseoffasterandfasterchangingproductlifecyclesthemobilityofmachinetoolswillbecomemorei

6、mportantintheThesupplyofidealprocessparametersisessentiallyneededforfuture,sotheaimofcompactmachinetooldesignalsocontainshighestshapeandsurfacerequirementsinhighprecisiontheintegrationoftheperipheryinthestructure.Inadditiontothemachining.Especiallywhilemachiningcomplexfreefor

7、mshapescompactdesigntheimpactoftheaccelerationforceofthedrivesofsmallandhighprecisemouldinsertsforinjectionmouldingtheonthemachinestructurewillbeminimizedbyimpulsedecouplinguseofatleastthreeaxesisnecessary.Conventionalhighprecisionsystemsinallthreemachineaxestoprovidebetterpr

8、ocessmachinesusingtheminiaturemillingprocessbecauseofitsveryconditio