数控激光加工的技术水平以及应用外文文献翻译中英文翻译.docx

数控激光加工的技术水平以及应用外文文献翻译中英文翻译.docx

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数控激光加工的技术水平以及应用外文文献翻译中英文翻译

英文文献

Numericalcontrollaserprocessingtechnologyandapplication

Pickto:

asthemainsymbolofscienceandTechnologydevelopmentinthe20thcenturyandthemoderninformationsocietyoneofthepillarsofoptoelectronicTechnology,LaserTechnology,LaserTechnology）andthedevelopmentofLaserindustryattachesgreatimportancetobytheadvancedcountriesintheworld.NumericalcontrolandintegratedtheLaserandtheopticalsystemofthecomputernumericalcontroltechnology,advancedandhighprecisionandautomationoftheworkpiecepositioning,thecombinationofformation,developmentandproductionofmachiningcenterhasbecomeaLasermachining,LaserProcessing）isanimportanttrendofdevelopment.

Keywords:

CNC;Lasermachining,LaserProcessing）;Level;application

Before:

laserisregardedasoneofthemostimportantscientificdiscoveriesofthetwentiethcentury,assoonasitwascausedthegreatattentionofmaterialsscientists.InNovember1971,gmpioneeredtheuseofa250wCO2lasertoimprovewearresistancematerialsusinglaserradiationtestandresearch,andin1974successfullycompletedautomobileredirectorshellsurface（malleableironmaterial）laserquenchingprocess,thewear-resistingperformanceofthehardenedpartsupto10timeshigherthanthatofuntreatedbefore.Thisisthefirsttimelasersurfacemodificationtechnologyofindustrialapplication.Overtheyears,thenationsoftheworldintoalargeamountofmoneyandmanpowertolaser,laserprocessingequipmentandlaserprocessingandthestudyofmaterialscience,laserprocessinghasbeenrapiddevelopment,andhavegainedgreateconomicandsocialbenefits.NowinChina,thelasertechnologyhasbeeninindustry,agriculture,medicine,warindustryandgetwiderinpeople'smodernlifeWidelyused,andgraduallyrealizeindustrializationoflasertechnology,countrieswillitasaresearchoneofthekeyprojectsoftheninthfive-yearplan.

Overview,LaserTechnology,LaserTechnology）

Laserprocessingtechnologyistheuseofthecharacteristicsoftheinteractionbetweenlaserandmaterialonthematerial（includingmetalandnonmetal）forcutting,welding,surfacetreatment,punchandaprocessingtechnologyofmicroprocessing,etc.Laserprocessingtechnologyisinvolvedinoptical,mechanical,electrical,materialsandtestingdifferentsubjects,suchas,acomprehensivetechnology,itsresearchscopeingeneralcanbedividedinto:

1.Thelaserprocessingsystem.Includinglaser,lightsystem,machinetools,controlsystemandtestingsystem.

2.Laserprocessingtechnology.Includingcutting（laserbeamcutting）,Welding,laserWelding）,surfacetreatment,punching,marking,marking,trimming,etc.Variouskindsofprocessingtechnology.

Hasthematureprocessingtechnologyinclude:

laserrapidprototypingtechnology,laserwelding,laserdrilling,lasercutting,lasermarking,lasertoweightbalancetechnology,laseretching,lasertrimmingtechnology,storagetechnology,lasermarking,lasercleaning,laserheattreatmentandsurfacetreatmenttechnology.

Second,theapplicationoflaserprocessingtechnology

CO2laserlaserprocessingapplications,themostwidelyincuttingandwelding,accountedfor70%and20%respectively,surfacetreatmentislessthan10%.TheYAGlaserapplicationinwelding,mark（50%）andcutting（15%）.CO2laserintheUnitedStatesandEuropeaccountedfor70-80%.Inlaserprocessingisgivenprioritytowithcuttingaccountedfor10%,ofwhichmorethan98%oftheCO2laser,powerwithinthescopeofthe1.5kW~2kW,andgivenprioritytowithheattreatmentaccountedforabout15%,mostlyforlaserprocessingofautomobileenginecylinderjacket.Theeconomicandsocialbenefitsofthistechnologyisveryhigh,ithasagreatmarketprospect.

Intheautoindustry,givefullplaytoitsadvancedlaserprocessingtechnology,fastandflexibleprocessingcharacteristics.Suchasincarprototypeandsmallbatchproductionextensiveuseof3dlasercuttingmachine,notonlysavethesampleandtoolingequipment,alsogreatlyshortentheproductionpreparationcycle;Laserbeamonthesurfaceofhighhardnessmaterialandcomplexandbendingspile,speedanddoesnotproducedamage;Laserweldinginautomobileindustryhasbecomeastandardprocess,Japan'sToyotahaslaserweldingusedinautomobilebodypanel,differentthicknessanddifferentsurfacecoatingmetalplatesweldedtogether,andthentostamping.Weldingandcuttinglaserheattreatmentabroad,thoughlesscommon,butarestillwidelyusedintheautomotiveindustry,suchascylinderliner,crankshaft,pistonring,commutator,gearandotherpartsofheattreatment.Intheindustrialdevelopedcountry,laserprocessingtechnologyandcomputernumericalcontroltechnologyandflexiblemanufacturingtechnology,thecombinationofderivedlaserrapidprototypingtechnology.Thetechnologynotonlycanquicklymanufacturingmodel,butalsocandirectlybythemoltenmetalpowderandproducemetalmould.

Inthe80s,YAGlaserinwelding,cutting,punchingandtaghasplayedamoreandmorebigfunction.GenerallythinkofYAGlasercuttingcangetagoodcuttingqualityandhighcuttingprecision,butisrestrictedinthecuttingspeed.WiththeimprovementofYAGlaseroutputpowerandbeamqualitywerebreakthrough.YAGlaserlevelhasstartedtosqueezeintokwCO2lasercuttingmarket.YAGlaserisespeciallysuitableforweldingdoesnotallowthethermaldeformationandmicrodevicesofweldingpollution,suchaslithiumbattery,heartpacemakers,sealedrelay,etc.YAGlaserpunchithasdevelopedintothelargestlaserprocessingapplications.

Atpresent,foreignlaserdrillingismainlyusedinaerospace,automobilemanufacturing,electronicinstrument,chemicalindustry,etc.Therapiddevelopmentoflaserdrilling,mainlyreflectedinthepunchingwithYAGlaseraverageoutputpowerhasbeenfiveyearsagofrom400wto800wto1000w.Peakpowerofholingupto30~50kw,punchwithnarrowpulsewidth,repetitionfrequencyismoreandmorehigh,theimprovementoflaseroutputparameters,toalargeextenttoimprovethequalityofdrillingandimprovedrillingspeed,alsoenlargedtheapplicationrangeofthepunch.Theapplicationoflaserdrillingatpresentmorematureisintheproductionofsyntheticdiamondandnaturaldiamonddieandwatchjewelbearingproduction.YAGlaserrepetitionfrequencyhasamountedto2000timespersecond,diodearraypumpedNd:

YAGlaserinthemeantimetorepairhasincreasedfromtheoriginalhundredsofhoursto1to20000hours.

Withthefurtherstudyoftheinteractionbetweenlaserandmaterial,laserprocessingtechnologywillbewidelyusedinflexiblemanufacturingsystem.Realizationoflasermachiningflexiblesystematicmainlyreferstothelaserheadcanbeflexibletoguidethelaserbeamtopartsforprocessingposition.Fromthecomplexityofthelasermachinecanprocessingparts,andpointsinatwo-dimensionalspaceandthree-dimensionallaserprocessing,highpowerlaser3dprocessingisthedevelopmentdirectionofthefuturedirectionofthelaserprocessing,inordertoachievetheflexibilityoflaserprocessing,3dlaseropticalsystemmustbeadopted.High-powerthree-dimensionalYAGlaserprocessingsystemusuallyadoptrobots（ormachinehand）withopticalfibertransmissionofthebeam,byholdingthelaserrobottocompleteallkindsofsports,thelaserthroughtheopticalfibertransmissiontothelaserhead,reachthesurfaceoftheworkpiece,theprocessingsystem,thebeamtransmissionandfocusingcharacteristicsisnotaffectedbyprocessingposition.

Three,isthefocusofthelaserprocessingtechnologyresearchanddevelopmentcanbesummarizedas:

1,anewgenerationofindustriallaserresearch,iscurrentlyintechnicalupdateperiod,itsmarkisthedevelopmentandapplicationofPuQuandiodepumpsolidstatelaser.

2,fineprocessing,lasermicromachininginthelaserprocessingapplicationstatisticsaccountedforonly6%in1996,anddoubledupto12%in1997,hasincreasedto19%in1998;

3,intelligentmachiningsystem,systemintegrationisnotonlytheprocessitself,butwithareal-timedetectionandfeedbackprocessing,withtheestablishmentoftheexpertsystem,intelligentprocessingsystemhasbecometheinevitabledevelopmenttrend.

Lasertechnologyinourcountryaftermorethan30yearsofdevelopment,hasmadethousandsofscientificandtechnologicalachievements,manyhavebeenusedtotheproductionpractice,laserprocessingequipmentproductionisgrowingat20%peryearonaverage,forthetechnicaltransformationoftraditionalindustries,improveproductqualitytosolvemanyproblems,suchaschemicalfiberlaserhairtechnologyispushing,baosteel,benxisteelandotherlargesteelmillswillchangeourcountryautomobilecoveringpartsofsteelcompletelydependentonimports,lasermarkingmachineandlaserweldingmachinequality,function,priceisinlinewiththedemandofthemarketatpresent,themarketshareofmorethan90%.

Four,themainproblems:

1,poorabilityofscientificresearchachievementsintoproducts,themarketprospectofachievementshavebeenmanystayinthelaboratoryprototypestage;

2,thecorecomponentoflaserprocessingsystemoflasersmallvariety,backwardtechnology,poorreliability.Abroadnotonlydiodepumpedsolid-statelaserhasbeenusedintheproductionprocess,andadiodelaserisalsoused,andthediodepumpedsolid-statelaserisstillinitsbeginningstageofresearchanddevelopment.

3,lessstudyonprocessingtechnology,especiallythestudyoffinemachiningtechnologyismoreweak,thestudyofultravioletwavelaserprocessingarera