会员注册 | 登录 | 微信快捷登录 QQ登录 微博登录 | 帮助中心 人人文库renrendoc.com美如初恋!
站内搜索 百度文库

热门搜索: 直缝焊接机 矿井提升机 循环球式转向器图纸 机器人手爪发展史 管道机器人dwg 动平衡试验台设计

   首页 人人文库网 > 资源分类 > DOC文档下载

外文翻译拥有大型盘铣刀具的能够促进回转体加工生产率的深槽铣床.doc

  • 资源星级:
  • 资源大小:56.00KB   全文页数:12页
  • 资源格式: DOC        下载权限:注册会员/VIP会员
您还没有登陆,请先登录。登陆后即可下载此文档。
  合作网站登录: 微信快捷登录 支付宝快捷登录   QQ登录   微博登录
友情提示
2:本站资源不支持迅雷下载,请使用浏览器直接下载(不支持QQ浏览器)
3:本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰   

外文翻译拥有大型盘铣刀具的能够促进回转体加工生产率的深槽铣床.doc

英文翻译第1页DeepslotmillingwithalargesidecutterboostsrotormachiningproductivitySuperHighRigidityHF5MMultiCenterBridgeTypeMachiningCenter1.BackgroundtoIntroductionofHF5MShimadaThankyouforpurchasingSNKsHF5MMultiCenter.Themachinewasinstalledthisyear.Firstofall,couldyouexplainthecircumstancesthatledtotheintroductionoftheHF5MAidaInJuly2000,Meidensha,HitachiandFujiElectricestablishedajointventure,JapanMotorGeneratorCo.,Ltd.,wherethethreecompaniesagreedonatieupforthemanufactureofsmallgenerators.ThemissionofJMGistoprovidecustomerswithhighquality,highperformanceproductsinacostefficientandtimelymanner.Tothisend,JMGcombinesthestrengthsofthetechnology,knowhowandhumanresourcesofthecompanies.MeidenshaalsohadtoupgradeitsproductionfacilitiesbecausethecompanyhadbeenselectedasapartnerofGEAeroEnergyProducts,amajorsubsidiaryofGeneralElectricCompany.ShimadaDoesthatmeanthatthenewlyinstalledSNKmachineinnotamereadditiontoexistingmachinetoolsImean,themachineissupposedtofulfillanumberofpurposes,isntitAidaInstalledpowergenerationcapacityintheUnitedstateshasbecomeinadequateinrecentyears.Tocopewiththesituation,variousactions,includingtheliberalizationofthepowermarket,havebeentaken.Underthesecircumstances,demandforgeneratorshasgrownsuddenly.Asageneratormanufacture,GEtriedtomeetthedemand,butitwasnecessarytoincreaseitsproductioncapability.1Thefirstgoalistoreducemanandmachinehourrequirementincreasingproductivityby60percent.Thisrequiresustodramaticallyimprovemachining英文翻译第2页conditionsandestablishproductiontechnology.2Thesecondgoalistoshortenmachiningleadtimereducingmachiningleadtimebyhalf.Thisrequiresustostreamlinemachiningprocessesandeliminatetheneedtomoveworkpiecesfrommachinetomachine.Toachievethesegoals,wesetthreerequirementsforthenewproductionfacility.1Thefirstrequirementisashortertimetodeliverytomeetrapidlygrowingdemand.2Thesecondrequirementisamachinetoolcapableofheavycutstoincreaseproductivity.Thisrequirementmustbemettoensurehighmechanicalrigidityandreliability.3Thethirdrequirementistheenhancementofautomationorientedfeaturetoincreaseuptimeandmetalremovalrates.2.WhatsageneratorrotorShimadaBeforegoingintodetailsofthenewmachinetool,wouldyouexplainthegeneratorrotor,whichistheprincipalworpiecetobemachinedonthenewmachineAidaTherearemanytypesofgeneration,suchaswaterwheelgeneratorsandturbinegenerators.Forexample,ourgeneratorsystemcomposedofgeneratorsmanufacturedatourOhtaFactoryanddieselengineshaveanoutputrangeof20to1874KVA.Thesegeneratorsystemsarehighlyacclaimednotonlyasgeneralpurposebackupgeneratorsystems,butalsoasemergencydieselpowergeneratorsystems.Theyareinusemanypartsoftheword,includingvariesbuildinginJapanandtheShowastationinAmericaintheextremelycoldregion.Tomanufacturetheseproducts,ourfactoryisequippedwithtwo100toncranes,largemachinetoolsincluding10meterand7meterlathes,andacleanroominwhichrotorwindingaremanufactured.ShimadaIvebeentothefactorymyself,anditwasindeedequippedwithavarietyofmachinetools.Iwasreallyimpressedwiththehighaccuracyandqualityof英文翻译第3页largegeneratorpartsmachinedinthefactory.Ialsohadanopportunitytoseemanygeneratorsbeingmanufacturedthere.EnergeticisthewordthatcametomindwhenIsawthefactory.AidaThankyou.Now,letmeexplainaboutrotorshafts,theworkpiecetobemachinedonournewmachinetool,takingabipolar,aircooled,turbinegeneratorasanexample.Unlikethebackup/emergencygeneratorsIhavejustmentioned,thesegeneratorsconsistoflargegeneratorsmanufacturedatOhtaFactorywhicharedrivenbysteamorgasturbines.Thesegeneratorsarewidelyusedforindustrialandpowergenerationapplications.Standardgeneratingcapacityis75000KVAorless.Thepowergeneratingpartofthegeneratorconsistsofastator,arotorandarotorbearing.Therotorisanassemblyofanironcoreandshaft.Tomakethingseasiertounderstand,letscallitarotorshaft.ShimadaIsee.How,then,doyoumanufacturearotorshaftAidaArotorshaftiscarvedoutofaforgedlowalloyblankthathasexcellentmagneticproperties.Majorstepsinthemanufacturingprocessare1turning,2slotmilling,drillingandtappingmilling,3grindingthebearings,4fittinginthecoils,and5balancingfinishturning3.UseoffivefaceMachiningsystemShimadaThen,thenewlyinstalledHF5Missupposedtobeusedforslotmilling,drillingandtappingoftherotorshaft.Wehearthatmanymanufacturersperformdeepslotmillingofrotorshaftonspecialpurposemachines.Why,then,didyouchooseourfivefacemachiningsystemAidaIfwethinkonlyoftheslotmillingofrotorshafts,wecouldgowithaplanertypemachinetoolorwithalathebasedhorizontalmachineequippedwithasidecutterspindlemountedonthecarriage.However,withaplanertypemachine,we英文翻译第4页cantexpecthighmachiningefficiency.AndwethoughtthatthesetypesofmachinescouldnotmeetourrequirementsImentionedattheoutset.Thereasonisthis.Therotorshafthasatotalof42deepslotscalledcoilslotsandventslot.Thedeepestslotsare27mmwideandabout140mmdeep.Thetotallengthofallslotsincludingshallowonesis105mperrotor.Deepslotmillingisthemosttimeconsumingoperationinthemachiningprocess,andweusedtomachinethesedeepslotsinthreepassesperslot,usingaplanomillerequippedwithasidecutter.SowedecidedtouseaGermanmadesidecutterthatcanroughandfinishadeepslotinasinglepass.Tousethiscutter,however,weneededaspecialpurposemachinetoolrigidenoughtoendureheavycuts.ShimadaYoumentionedheavycuts.HowbigisthecuttingforceappliedtothatsidecutterAidaAbout20KNaccordingtothecuttingtoolmanufacturerscalculation.Thiscuttingforceisappliedtothecuttingedgeofthesidecutterthatis700mmindiameter.Conventionalmachinetoolsjustcanthandlethatmuchforce.Inordertoreducethenumberoftoolpassesfromthreetoone,itisnecessarytoincreasethemetalremovalratebyafactorofthreewithaforcethreetimesasdigasthecuttingconditions.Inaddition,deepslotmillingwasnottheonlygoalwewantedtoachieve.Reductionofleadtimewasouranotherconsideration.Millingoftherotorshaftinvolvesthemachining.Millingoftherotorshaftinvolvesthemachiningofmanyfeaturessuchasdeepslots,keyslotsandinclinedholes.So,eachworkpiecehadtobemovedaroundfrommachinetoMachine,andthiswasabottleneckinthemanufacturingprocess.ShimadaIsee.ThatswhyyoudecidedtogowithourfivefacemachiningsystemcapableofonestopmachiningofourworkpieceAidaThatsright.Asthenameindicates,afivefacemachiningsystemmakesitpossibletomachinefivefacesofaworkpieceinonestop.Byusinganattachment,itsalso

注意事项

本文(外文翻译拥有大型盘铣刀具的能够促进回转体加工生产率的深槽铣床.doc)为本站会员(淘宝运营)主动上传,人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知人人文库网([email protected]),我们立即给予删除!

温馨提示:如果因为网速或其他原因下载失败请重新下载,重复下载不扣分。

copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5