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1、模具制造及模具表面采用激光技术增强使用寿命MoldmanufacturingandmoldsurfaceusinglasertechnologytoenhanceservicelifeLaserstrengtheningprocessingsystemfordiesurfaceandlaserstrengtheningprocess,laserintensifyingdielistThelaserhardeningtechniqueisusedtoinvestigatetherelationshipbetweenthehardeningdepthandwearresistanceoft
2、hesurfaceandthelaserstrengtheningprocessparametersCangreatlyimprovetheservicelifeofdie,lasertransformationhardening(LTH),lasersurfacemeltingtreatment(LSM),excitedOpticalsurfacecoatingandalloying(LSC/LSA),lasersurfacechemicalvapordeposition(LCVD),laserphysics,gasphasedepositionProducts(LPVD),lase
3、rshock(LSH)andlaseramorphization,areusedtoimprovedielifebylaserphasetransitionhardeningThedielifeisimprovedbylasertransformationhardeningandlasercladdingandalloying.Keywordsdiesurface;lasertransformationhardening;strengthening;wearresistance;Sincethescientificdevelopmentofreformandopeningup,Chin
4、a'smechanicalengineeringindustryhasdevelopedrapidly,suchasspace,automobilemanufacturing,etc.Therequirementsofprecision,processingqualityandservicelifeofmouldarecontinuouslyimprovedinthefieldofdenseinstrumentHigherdemandshavebeenmade.Itisanimportantresearchtopictoimprovetheprecision,theprocessing
5、qualityandtheservicelifeofthedie.ThemetalandnonmetalsurfacestrengtheningtreatmentusedinindustrialhistoryisanimportantwaytoimprovethequalityandservicelifeofthedieTheutilitymodelhastheadvantagesofimprovingthecomprehensiveperformanceofthedie,greatlyreducingthecost,andgivingfullplaytothepotentialoft
6、hetraditionalmoldSignificance。Commonlyusedmoldsurfacestrengtheningtreatmentprocesshaschemicalheattreatment:carburizing,carbonitridingandsoonDoublelayertreatment:surfacing,thermalspraying,electrosparksurfacestrengthening,PVDandCVD,etc.:Shotpeening.Thetechniquesusedinhistoryaremorecomplicated,thep
7、rocessingcycleislonger,andthelaterdeformationislarger.recentyearsWiththeemergenceofhigh-powerlasersandlaserprocessingtechnologyinindustrialapplicationsbecomeincreasinglywidespreadandmature,Itprovidesanewtechnologyforstrength
