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