机械专业外文翻译中英文翻译外文文献翻译Word下载.docx

机械专业外文翻译中英文翻译外文文献翻译Word下载.docx

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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,directlytotheinstallationofa

hardenedtoolsteelprocessingforming,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:

High-speedmillingmachinemusthaveahigh-speedspindle,thespindlespeedisgenerally10000~100000m/min,powergreaterthan15kW.Butalsowithrapidspeedorindesignatedspotsfast-stoppingperformance.Themainaxialspacenotmorethan0.0002mm.Oftenusinghigh-speedspindle-hydrostaticbearings,airpressure-bearing,mixedceramicbearings,magnetic

bearingstructureoftheform.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-speedprocessingto