机械类英语论文及翻译翻译.docx
- 文档编号:4195138
- 上传时间:2022-11-28
- 格式:DOCX
- 页数:18
- 大小:40.03KB
机械类英语论文及翻译翻译.docx
《机械类英语论文及翻译翻译.docx》由会员分享,可在线阅读,更多相关《机械类英语论文及翻译翻译.docx(18页珍藏版)》请在冰豆网上搜索。
机械类英语论文及翻译翻译
High-speedmilling
High-speedmachiningisanadvancedmanufacturingtechnology,differentfromthetraditionalprocessingmethods.Thespindlespeed,cuttingfeedrate,cuttingasmallamountofunitswithinthetimeofremovalofmaterialhasincreasedthreetosixtimes.Withhighefficiency,highprecisionandhighqualitysurfaceasthebasiccharacteristicsoftheautomobileindustry,aerospace,moldmanufacturingandinstrumentationindustry,suchasaccesstoawiderangeofapplications,hasmadesignificanteconomicbenefits,isthecontemporaryimportanceofadvancedmanufacturingtechnology.Foralongtime,peopledieontheprocessinghasbeenusingagrindingormillingEDM(EDM)processing,grinding,polishingmethods.AlthoughthehighhardnessoftheEDMmachineparts,butthelowertheproductivityofitsapplicationislimited.Withthedevelopmentofhigh-speedprocessingtechnology,usedtoreplacehigh-speedcutting,grindingandpolishingprocesstodieprocessinghasbecomepossible.Toshortentheprocessingcycle,processingandreliablequalityassurance,lowerprocessingcosts.
1Oneoftheadvantagesofhigh-speedmachining
High-speedmachiningasadie-efficientmanufacturing,high-quality,lowpowerconsumptioninanadvancedmanufacturingtechnology.Inconventionalmachininginaseriesofproblemshasplaguedbyhigh-speedmachiningoftheapplicationhavebeenresolved.
1.1Increaseproductivity
High-speedcuttingofthespindlespeed,feedratecomparedwithtraditionalmachining,inthenatureoftheleap,themetalremovalrateincreased30percentto40percent,cuttingforcereducedby30percent,thecuttingtoollifeincreasedby70%.Hardenedpartscanbeprocessed,afixtureinmanypartstobecompletedrough,semi-finishingandfine,andallotherprocesses,thecomplexcanreachpartsofthesurfacequalityrequirements,thusincreasingtheprocessingproductivityandcompetitivenessofproductsinthemarket.
1.2Improveprocessingaccuracyandsurfacequality
High-speedmachinesgenerallyhavehighrigidityandprecision,andothercharacteristics,processing,cuttingthedepthofsmall,fastandfeed,cuttingforcelow,theworkpiecetoreduceheatdistortion,andhighprecisionmachining,surfaceroughnesssmall.Millingwillbenohigh-speedprocessingandmillingmarksthesurfacesothatthepartsgreatlyenhancethequalityofthesurface.ProcessingAluminumwhenupRa0.40.6um,piecesofsteelprocessingatuptoRa0.2~0.4um.
1.3Cuttingreducetheheat
Becausethemainaxismillingmachinehigh-speedrotation,cuttingashallowcutting,andfeedveryquickly,andthebladelengthoftheworkpiececontactsandcontacttimeisveryshort,adecreaseofbladesandpartsoftheheatconduction.High-speedcuttingbydrymillingoroilcookedupabsolute(mist)lubricationsystem,toavoidthetraditionalprocessingtoolincontactwiththeworkpieceandalotofshortcomingstoensurethatthetoolisnothightemperatureundertheconditionsofwork,extendedtoollife.
1.4Thisisconducivetoprocessingthin-walledparts
High-speedcuttingofsmallcuttingforce,ahigherdegreeofstability,Machinablewithhigh-qualityemployeescomparedtothecompanymaybeverygood,butotherthanthecompany'semployeesmaySuanbuLeoutstandingworkperformance.ForourChinapractice,weusethemodelstodeterminethemethodofstafftrainingneedsaresimpleandeffective.Thisstudymodelscanbeanexternalobject,itcanalsobeacombinationofinternalandexternal.Wemustfirstclearstrategyforthedevelopmentofenterprises.Throughtheinternalandexternalbusinessenvironmentandorganizationalresources,suchasanalysis,thefuturedevelopmentofaclearbusinessgoalsandoperationalpriorities.Accordingtothebusinessdevelopmentstrategycanbecomparedtofindthebusinessmodels,throughacomparativeanalysisofthefinalizationofbusinessmodels.Indeterminingbusinessmodels,a,istheunderstandingofitsdevelopmentstrategy,oritsmarketshareandmarketgrowthrate,orthestaffofthesituation,andsoon,accordingtothecompaniestodeterminetheactualsituation.Asenterprisesindifferentperiodofdevelopment,itsfocusisdifferent,whichmeansthatenterprisesneedtoinvestthemanpowerandfinancialresourcesthefocusisdifferent.Soinacertainperiodoftime,enterprisesshouldaccuratelyselectedtheirbusinessmodelscomparedwiththedepartmentsandposts,somorepracticalsignificance,becausethebusinessmodelsarenotalwaysgood,buttocomparesomeaspectsdidnothavemuchpracticalsignificance,FurthermoreThiscanmorefullyconcentrateonthebusinessuseoflimitedresources.Identifybusinessmodels,andthentaketheenterpriseofthecorrespondingdepartmentsandstaffwiththebusinessmodelsforcomparison,thetwocanbefoundintheperformancegap,acomparativeanalysistofindreasons,inaccordancewiththisbusinessreality,thefinalidentificationoftrainingneeds.Thecostoftrainingisneeded,ifnotthroughaneffectivewaytodeterminewhethercompaniesneedtotrainandthetrainingoftheway,butblindtotraining,suchtrainingisdifficulttoachievethedesiredresults.Acomparisononlydifferencebetweenthismodelissimpleandpracticaltraining.
1.5Canbepartofsomealternativetechnology,suchasEDM,grindinghighintensityandhighhardnessprocessing
High-speedcuttingamajorfeatureofhigh-speedcuttingmachinehasthehardnessofHRC60parts.Withtheuseofcoatedcarbidecuttermoldprocessing,directlytotheinstallationofahardenedtoolsteelprocessingforming,effectivelyavoidtheinstallationofseveralpartsofthefixtureerrorandimprovethepartsofthegeometriclocationaccuracy.Inthemoldoftraditionalprocessing,heattreatmenthardeningoftheworkpiecerequiredEDM,high-speedmachiningreplacethetraditionalmethodofcuttingtheprocessing,manufacturingprocesspossibletoomitdieinEDM,simplifyingtheprocessingtechnologyandinvestmentcosts.
High-speedmillingintheprecinctsofCNCmachinetools,orforprocessingcentre,alsointheinstallationofhigh-speedspindleonthegeneralmachinetools.Thelatternotonlyhastheprocessingcapacityofgeneralmachinetools,butalsoforhigh-speedmilling,adecreaseofinvestmentinequipment,machinetoolsincreasedflexibility.Cuttinghigh-speedprocessingcanimprovetheefficiency,qualityimprovement,streamlineprocesses,investmentandmachinetoolinvestmentandmaintenancecostsrise,butcomprehensive,cansignificantlyincreaseeconomicefficiency.
2High-speedmilling
High-speedmillingthemaintechnicalhigh-speedcuttingtechnologyiscuttingthedevelopmentdirectionofoneofitwithCNCtechnology,microelectronictechnology,newmaterialsandnewtechnology,suchastechnologydevelopmenttoahigherlevel.High-speedmachinetoolsandhigh-speedtooltoachievehigh-speedcuttingistheprerequisiteandbasicconditions,inhigh-speedmachiningintheperformanceofhigh-speedmachinetoolmaterialofchoiceandtherearestrictrequirements.
2.1High-speedmillingmachineinordertoachievehigh-speedmachining
Generaluseofhighlyflexiblehigh-speedCNCmachinetools,machiningcenters,andsomeuseadedicatedhigh-speedmilling,drilling.Atthesametimeahigh-speedmachinetoolspindlesystemandhigh-speedfeedingsystem,highstiffnessofthemaincharacteristicsofhigh-precisiontargetingandhigh-precisioninterpolationfunctions,especiallyhigh-precisionarcinterpolationfunction.High-speedmachiningsystemsofthemachineahigherdemand,mainlyinthefollowingareas:
Generaluseofhighlyflexiblehigh-speedCNCmachinetools,machiningcenters,andsomeuseadedicatedhigh-speedmilling,drilling.Atthesametimeahigh-speedmachinetoolspindlesystemandhigh-speedfeedingsystem,highstiffnessofthemaincharacteristicsofhigh-precisiontargetingandhigh-precisioninterpolationfunctions,especiallyhigh-precisionarcinterpolationfunction.High-speedmachiningsystemsofthemachineahigherdemand,mainlyinthefollowingareas:
High-speedmillingmachinemusthaveahigh-speedspindle,thespindlespeedisgenerally10000~100000m/min,powergreaterthan15kW.Butalsowithrapidspeedorindesignatedspotsfast-stoppingperformance.Themainaxialspacenotmorethan0.0002mm.Oftenusinghigh-speedspindle-hydrostaticbearings,airpressure-bearing,mixedceramicbearings,magneticbearingstructureoftheform.Spindlecoolinggeneralusewithinthewateroraircooled.
High-speedprocessingmachine-drivensystemshouldbeabletoprovide40~60m/minofthefeedrate,withgoodaccelerationcharacteristics,canprovide0.4m/s2to10m/s2accelerationanddeceleration.Inordertoobtaingoodprocessingquality,high-speedcuttingmachinesmusthaveahighenoughstiffness.Machinebedmaterialusedgrayiron,canalsoaddahigh-dampingbaseofconcrete,topreventcuttingtoolchatteraffectthequalityofprocessing.Ahigh-speeddatatransferrate,canautomaticallyincreaseslowdown.Processingtechnologytoimprovetheprocessingandcuttingtoollife.Atpresenthigh-speedmachinetoolmanufacturers,usuallyinthegeneralmachinetoolsonlowspeed,thefeedoftheroughandthenproceedtoheattreatment,thelastinthehigh-speedmachineonthehalf-finishedandfinished,inimprovingtheaccuracyandefficiencyatthesametime,asfaraspossibletoreduceprocessingCost.
2.2High-speedmachiningtool
High-speedmachiningtoolisthemostactiveoneoftheimportantfactors,ithasadirectimpactontheefficiencyofprocessing,manufacturingcostsandproductprocessingandaccuracy.Toolinhigh-speedprocessingtobe
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 机械类 英语论文 翻译