Laser vuam yog txheej txheem siv los sib koom ua ke cov hlau los yog cov ntawv siv cov pa roj hmab siv cov nqaj hlau los ua qhov txuas. Ua tib zoo li cov khoom siv ua kom muaj cua sov, nyob rau hauv cov ntaub ntawv nyias laser vuam tuaj yeem nqa ntawm qhov siab vuam ceev ntawm meters ib feeb, thiab hauv cov ntaub ntawv tuab tuaj yeem tsim qhov nqaim, sib sib zog nqus ntawm qhov sib npaug.
Laser welding ua hauj lwm nyob rau hauv ob qho tseem ceeb ntawm cov qauv sib txawv: kev sib tw txwv vuam thiab qhov tseem ceeb vuam. Cov hom kev uas cov nqaj nqaj hlau yuav sib cuam tshuam nrog cov khoom nws txuas nrog vuam yuav yog nyob ntawm lub zog ceev hla cov nqaj mus tsoo cov haujlwm tawm.
Kev pib ua lub vuam tsis tshua muaj tshwm sim thaum lub zog ceev sib xws tsawg dua 105W / cm2. Lub pas nrig laser tau nqus tsuas yog nyob ntawm npoo ntawm cov khoom thiab tsis txeem rau nws. Kev ua qhov tsis txaus txuas ntau zaus tom qab ntawd ua rau pom qhov siab dav rau qhov tob piv.
Laser welding feem ntau ua tiav siv kev sib zog ntawm cov muaj zog ntau dua, los ntawm cov twj siv keyhole. Thaum lub nqaj laser tau tsom mus rau qhov chaw me me kom tsim hluav taws xob tsawg zog xws li> 106-107 W / cm2, cov khoom siv nyob rau hauv txoj kev ntawm lub nqaj tsis tsuas melts tab sis kuj vaporises, ua ntej qhov ntau ntawm cov cua sov tuaj yeem tshem tawm los ntawm conduction. Qhov tsom xam laser nqaj ces nkag mus rau qhov chaw ua haujlwm ua cov kab noj hniav hu ua' keyhole', muaj qhov muaj vuam hlau (uas qee qhov tuaj yeem txawm muaj ionised, tsim cov ntshav).
Qhov nthuav tawm ntawm cov vapor lossis cov ntshav ua rau tiv thaiv qhov vau tawg ntawm phab ntsa hlau ntawm qhov tseem ceeb hauv qhov kab noj hniav no.
Tsis tas li ntawd, qhov txuas ntawm lub nqaj nrig rau hauv qhov chaw ua hauj lwm tau ua kom zoo dua qub los ntawm kev tsim ntawm cov keyhole no. Kev sib sib zog nqus kev sib tsoo ces tau ua tiav los ntawm kev hla cov keyhole raws qhov sib koom ua ke yuav tsum tau welded los yog txav qhov sib koom tes nrog kev sib koom nrog txoj kab nrig. Qhov no ua rau welds nrog qhov siab tob rau qhov dav piv.
Nyob rau hauv qhov kev txiav txim ntawm qhov nro, qee cov khoom siv molten ntawm txoj hau kev sib txuas ntawm lub qhov tseem ceeb ntws ncig lub qhov tseem ceeb ntawm qhov chaw mus rau sab nraub qaum, tom qab ntawd txias thiab solidifying los ua lub weld. Qhov no tawm ntawm lub weld cap nrog tus qauv chevron, taw tes rov qab ntawm qhov pib ntawm qhov weld.
