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1、低速走丝电解线切割试验研究ABSTRACTWireelectrochemicalmachining(WECM)isanontraditionalmachiningprocessinwhichthewireactsasthecathodeandtheconductivematerialsaredissolvedbyanodicelectrochemicalreactionsatatomicsizes,theoretically.Theprofileoftheworkpiececansubsequentlybeobtained
2、asthedesiredcontourbycontrollingtheworkpiecefeedingtrajectoryviathemotioncontrolsystem.Themainresearchworksofthispaperareasfollows:(1)Thecharacteristicsofhigh-aspect-ratioWECMwereanalyzedandthereciprocatingtravelingwireelectrodewasintroducedtoconquerthedifficultie
3、soccurredinthehigh-aspect-ratioworkpiecemachiningprocesswiththeWECM.(2)Experimentalsetupwasdevelopedforlow-speedtravelingWECM,inwhichtheaxialtravelingofthewireelectrodeisachievedbythewirestoragecylinder.Thecontrollingprogramwasdesignedtocontrolthemachiningtrajecto
4、ryoftheworkpiece,andmonitorthemachiningcurrent.Additionally,thedatabasefortheprocessingparametersofWECMwasestablishedinordertofacilitatethemanagementandtheapplication.(3)Experimentswereconductedtoinvestigatetheinfluenceofdifferentparametersontheaveragehighaspectra
5、tioslitwidthandstandarddeviationoftheslitwidth,suchaswiretravelspeed,electrolyteconcentration,pulsevoltage,pulsedutyratio,pulsefrequency,andworkpiecefeedingrate.Theoptimalprocessingparameterswereobtained,aswell.(4)Byusingtheobtainedoptimalprocessingparameters,amic
6、rostructurewithaspectratioupto113wassuccessfullyprocessedinthe20mmthickstainlessworkpiece,whichhadgoodsurfacequalityandslitwidthhomogeneity.Keywords:wireelectrochemicalmachining,highaspectratio,lowspeedtravelingwireelectrode,enhancementofmasstransporting,pulsecurr
7、entII万方数据南京航空航天大学硕士学位论文目录第一章绪论..........................................................................................................................................1
1.1切割技术的研究与发展.................................................................................
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1.1.1气体火焰切割技术.......................................................................................................1
1.1.2等
