{{0} Nrho. Lub zog ceev ntawm lub laser vuam tshuab
Lub zog ntom ntom yog ib qho tseem ceeb tshaj plaws ntawm kev siv lub tshuab ua haujlwm siv laser. Nws siv lub zog ua kom muaj zog, nyob hauv microsecond lub sijhawm ntau, qhov saum npoo tuaj yeem raug rhaub sai rau lub rwj taw, yuav muaj ntau ntawm vaporization. Yog li ntawd, qhov siab zog hluav taws xob tau txais txiaj ntsig zoo rau cov khoom siv tshem tawm, xws li drilling, txiav thiab carving. Rau qis qis zog ceev, nws yuav siv ob peb milliseconds rau qhov kub kom mus txog qhov kub npau npau. Ua ntej lub ntsej muag vaporization, txheej hauv qab ncav lub melting point, uas yog yooj yim los ua qhov zoo melting vuam nyhuv. Yog li no, nyob rau hauv cov kab hluav taws xob laser conductive, qhov ntau ntawm lub zog ceev yog 104 ~ 106 W / cm 2.
{{0} Nrho. Mem tes waveform ntawm laser vuam tshuab
Mem tes waveform yog ib qho teeb meem tseem ceeb hauv laser vuam, tshwj xeeb tshaj yog rau vuam ntawm cov khoom nyias. Thaum cov kab xev hluav taws xob loj dhau los tsoo lub npoo ntawm cov khoom, qee lub zog ntawm cov hlau saum npoo yuav thawm thiab ploj, thiab qhov cuam tshuam yuav hloov nrog qhov kub saum npoo. Nyob rau lub sij hawm muaj mem tes, qhov kev cuam tshuam ntawm hlau sib txawv ntau.
{{0} Nrho. Mem tes dav ntawm laser vuam tshuab
Mem tes dav yog ib qho ntawm cov tsis tseem ceeb ntawm mem tes vuam. Nws tsis yog tsuas yog ntsuas tseem ceeb kom paub qhov txawv ntawm cov khoom tshem tawm thiab yaj, tab sis kuj tseem ceeb ntsuas kom txiav txim siab tus nqi thiab ntim ntawm laser vuam machining khoom.
{{0} Nrho. Cov cawv ntawm defocus rau laser vuam tshuab
Vim tias qhov siab zog ntawm kev ceev ntawm laser tsom hauv qhov chaw, nws yog qhov yooj yim kom yaj rau hauv qhov. Qhov faib tawm ntawm cov fais fab tuag yog qhov sib luag ntawm txhua theem deb ntawm qhov ua kom pom tseeb laser. Muaj ob hom kev tiv thaiv: kev tiv thaiv zoo thiab qhov tsis zoo. Yog hais tias lub dav hlau focal yog saum toj no lub workpiece, nws yog qhov zoo defocusing, txwv tsis pub nws yog qhov tsis zoo defocusing. Raws li qhov kev tshawb xav geometrical optics, thaum qhov kev ncua deb ntawm lub dav hlau zoo thiab lub siab tsis ncaj lub dav hlau thiab lub dav hlau vuam sib npaug, lub zog ntawm lub dav hlau sib piv yog kwv yees li qub, tab sis cov duab ntawm lub pas dej molten txawv dua. Thaum defocusing tsis zoo, qhov tob tob dua ntawm kev nkag tau tuaj yeem tau, uas muaj feem cuam tshuam rau cov txheej txheem tsim ntawm cov pas dej molten.
