基于solidworks机床夹具设计外文翻译.docx
《基于solidworks机床夹具设计外文翻译.docx》由会员分享,可在线阅读,更多相关《基于solidworks机床夹具设计外文翻译.docx(11页珍藏版)》请在冰豆网上搜索。
基于solidworks机床夹具设计外文翻译
2604130359
CNCCuttingTechnologyReview
Numericalcontrolhighspeedcuttingtechnology(HighSpeedMachining,HSM,orHighSpeedCutting,HSC),isoneoftheadvancedmanufacturingtechnologytoimprovethemachiningefficiencyandquality,thestudyofrelatedtechnologyhasbecomeanimportantresearchdirectionofadvancedmanufacturingtechnologyathomeandabroad.Chinaisabigmanufacturingcountry,intheworldofindustrytransfertoacceptthefrontinsteadofback-endofthetransfer,tomasterthecoretechnologyofadvancedmanufacturing,orinanewroundofinternationalindustrialstructureadjustment,ourcountrymanufacturingindustrywillfurtherbehind.Imminentresearchonthetheoryandapplicationofadvancedtechnology.
1,high-speedCNCmachiningmeaning
HighspeedcuttingtheoryputforwardbytheGermanphysicistCarl.J.Salomoninthelastcenturyandearlythirty's.Heconcludedbyalotofexperiments:
inthenormalrangeofcuttingspeed,cuttingspeediftheincrease,willcausethecuttingtemperaturerise,exacerbatingthewearofcuttingtool;however,whenthecuttingspeedisincreasedtoacertainvalue,aslongasmorethantheinflectionpoint,withtheincreaseofthecuttingspeed,cuttingtemperaturecannotrise,butwilldecline,soaslongasthecuttingspeedishighenough,itcanbesolvedverywellinhighcuttingtemperaturecausedbytoolwearisnotconducivetothecuttingproblem,obtainedgoodprocessingefficiency.
Withthedevelopmentofmanufacturingindustry,thistheoryisgraduallypaidmoreattentionto,andattractedalotofattention,onthebasisofthistheoryhasgraduallyformedthefieldofhigh-speedcuttingtechnologyofNC,relativelyearlyresearchonNCHigh-speedMachiningTechnologyindevelopedcountries,throughthetheoreticalbasisoftheresearch,basicresearchandappliedresearchanddevelopmentapplication,atpresentapplicationshaveenteredthesubstantivestageinsomeareas.
Thehigh-speedcuttingprocessingcategory,generallyhavethefollowingseveralkindsofclassificationmethods,oneistoseethatcuttingspeed,cuttingspeedoverconventionalcuttingspeedis5-10timesofhighspeedcutting.Alsohasthescholartospindlespeedasthedefinitionofhigh-speedprocessingstandards,thatthespindlespeedishigherthanthatof8000r\/minforhighspeedmachining.Andfromthemachinetoolspindledesignpointofview,withtheproductofDNdiameterofspindleandspindlespeed,ifthevalueofDNto(5~2000)*105mm.r\/min,isconsideredtobeofhighspeedmachining.Inpractice,differentprocessingmethods,differentmaterials,highspeedcuttingspeedcorrespondingtodifferent.Isgenerallybelievedthattheturningspeedof(700~7000)m\/min,millingspeedreachesm\/min(300~6000),thatisinthehigh-speedcutting.
Inaddition,fromthepracticalconsiderations,high-speedmachiningconceptnotonlycontainsthehighspeedcuttingprocess,integrationandoptimizationalsocontainstheprocessofcutting,isacanobtaingoodeconomicbenefitsandhighspeed,istheunityoftechnologyandbenefit.
High-speedcuttingtechnologyisinthemachinetoolstructureandmaterials,machinetooldesign,manufacturingtechnology,high-speedspindlesystem,highperformanceandfastfeedingsystem,ahighperformanceCNCsystem,toolholdersystem,highperformancetoolmaterialandtooldesignandmanufacturingtechnology,highefficiencyandhighprecisionmeasurementandtestingtechnology,themechanismofhighspeedcutting,highspeedcuttingprocessandotherrelatedhardwareandsoftwaretechnologyarefullyintegratedintothedevelopmentfoundation.Therefore,highspeedcuttingtechnologyisacomplexsystemengineering,isawiththerelatedtechnologydevelopmentandthedevelopmentoftheconceptof.
2,thesuperiorityofhigh-speedCNCmachining
Duetothelargeamplitudeoftheincreaseofthecuttingspeed,highspeedmachiningtechnologynotonlyimprovesthecuttingproductivity,andcomparedwiththeconventionalcuttingalsohassomeobviousadvantages:
first,smallcuttingforce:
inhighspeedmilling,cuttingadoptstheformofsmallquantities,highcuttingspeed,thecuttingforceisreducedby30%comparedtotheconventionalcutting,especiallytheradialcuttingforcegreatlyspindlebearing,tool,workpieceisreduced.Bothtoreducetoolwear,andeffectivecontrolofthevibrationmachiningsystem,improvethemachiningaccuracy.Second,thematerialremovalrateishigh:
theuseofhighspeedcutting,cuttingspeedandfeedrateareimprovedgreatly,thesametimethematerialremovalrateisimprovedgreatly.Thusgreatlyimprovetheprocessingefficiency.Third,thermaldeformationsmall:
inthehigh-speedcutting,cuttingheat,mostofthetimetotheworkpiecebytheoutflowofhigh-speedchipaway,sotheheatingtimeofthemachineds