Laser vuam txoj cai
Laser welding tuaj yeem ua tiav los ntawm kev nruam lossis cov kab teeb ci laser. Lub hauv paus ntsiab lus ntawm laser vuam yuav muab faib ua cua sov conduction vuam thiab laser sib sib zog nqus nqus vuam. Thaum lub zog ceev yog tsawg dua 104 ~ 105 W / cm2, nws yog cov cua sov conduction vuam. Lub sijhawm no, qhov nkag mus tob yog qhov ntiav thiab qhov vuam nrawm nrawm; Thaum lub hwj chim ceev tshaj plaws yog ntau dua 105 ~ 107 W / CM2, ua kom muaj cua sov, uas muaj cov yam ntxwv sib sib zog nqus vuam, uas muaj cov yam ntxwv sib sib zog nqus vuam thiab cov piv txwv loj.
Lub hauv paus ntsiab lus ntawm tshav kub conduction laser vuam yog: laser hluav taws xob heats lub nto yuav tsum tau ua, thiab cov saum npoo tshav kub diffuses rau sab hauv los ntawm tshav kub conduction. Los ntawm kev tswj lub laser mem tes dav, lub zog, ncov lub zog thiab rov ua dua zaus thiab lwm yam laser tsis, lub workpiece yog melted los tsim ib lub pas dej ua ke. .
Lub tshuab laser vuam siv rau iav vuam thiab metallurgical nyias phaj vuam feem ntau suav nrog laser sib sib zog nqus nqus vuam. Cov hauv qab no tsom mus rau lub hauv paus ntsiab lus ntawm laser tob tob welding.
Laser sib sib zog nqus nkag welding feem ntau siv tas li laser beams kom tiav cov kev sib txuas ntawm cov ntaub ntawv, thiab nws metallurgical lub cev txheej txheem yog heev zoo ib yam li electron beam vuam, uas yog, lub zog hloov dua siab tshiab mechanism yog tiav los ntawm lub "qhov tseem ceeb-qhov" qauv. Nyob rau hauv lub zog loj txaus density laser irradiation, cov khoom evaporates thiab tsim me pores. Lub qhov me me uas muaj cov chav no zoo li lub cev dub, nqus yuav luag tag nrho lub zog ntawm qhov teeb meem kab teeb meem, thiab qhov sib npaug ntawm qhov sib npaug ntawm cov kab noj hniav nce mus txog 2500 0C. Cov cua sov yog kis los ntawm cov phab ntsa sab nrauv ntawm cov kab noj hniav kub kom yaj cov hlau nyob ib puag ncig cov kab noj hniav. Lub qhov me me yog ntim nrog cov cua kub kub uas tsim los ntawm cov evaporation tas li ntawm cov khoom siv phab ntsa nyob rau hauv lub irradiation ntawm lub beam, cov phab ntsa ntawm lub qhov me me yog surrounded los ntawm molten hlau, thiab cov kua hlau yog surrounded los ntawm cov khoom (thaum nyob rau hauv feem ntau cov pa vuam txheej txheem thiab laser conduction vuam, lub zog ua ntej tso rau saum npoo ntawm lub workpiece, thiab ces thauj mus rau sab hauv los ntawm kev sib kis). Cov kua dej ntws tawm sab nraud ntawm phab ntsa pore thiab qhov nro ntawm phab ntsa txheej tswj kom muaj qhov sib npaug nrog cov vapor siab tsis tu ncua hauv cov kab noj hniav. Lub nqaj txuas ntxiv nkag mus rau hauv lub qhov me me, thiab cov khoom siv sab nraud ntawm lub qhov me me txuas ntxiv ntws. Raws li cov nqaj txav mus, lub qhov me me yeej ib txwm nyob hauv lub xeev ruaj khov. Uas yog hais tias, lub qhov me me thiab cov hlau molten nyob ib puag ncig lub qhov phab ntsa txav mus rau pem hauv ntej nrog rau pem hauv ntej ceev ntawm cov nqaj hlau, thiab cov hlau molten puv qhov sib txawv ntawm lub qhov me me thiab tom qab ntawd condenses, yog li ntawd lub weld yog tsim. Tag nrho cov txheej txheem saum toj no tshwm sim sai heev uas vuam ceev tuaj yeem ncav cuag ob peb meters ib feeb.
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Cov txheej txheem tseem ceeb ntawm laser tob tob welding
1) Laser zog. Muaj tus nqi pib ntawm laser zog ceev hauv laser vuam. Hauv qab no tus nqi, qhov tob tob tob tob heev. Thaum tus nqi no tau mus txog lossis dhau lawm, qhov kev nkag mus tob yuav nce ntxiv. Plasma yog generated tsuas yog thaum lub laser zog ceev ntawm lub workpiece tshaj tus nqi pib (nyob ntawm seb cov khoom), uas cim qhov kev kawm ntawm ruaj khov sib sib zog nqus welding. Yog tias lub zog laser qis dua qhov pib no, tsuas yog ntog ntawm qhov chaw ua haujlwm tsuas yog siv qhov chaw, piv txwv li vuam siv qhov chaw nrog cov cua sov ruaj khov. Thaum lub laser fais fab tuag nyob ze rau qhov tseem ceeb ntawm qhov tsim ntawm qhov me me, qhov sib sib zog nqus nqus vuam thiab kev siv vuam yog ua los ntawm kev sib hloov, uas dhau los ua cov txheej txheem vuam tsis ruaj khov, ua rau muaj kev hloov pauv loj hauv qhov tob tob. Thaum lub sij hawm laser tob tob welding, lub zog laser tswj qhov tob tob thiab vuam ceev tib lub sijhawm. Vuam nkag yog ncaj qha ntsig txog lub zog ntawm lub zog thiab yog qhov ua haujlwm ntawm qhov teeb meem ntawm lub zog hluav taws xob thiab cov nqaj focal chaw. Nyob rau hauv dav dav, rau ib tug laser beam ntawm ib tug tej txoj kab uas hla, qhov tob ntawm kev nkag mus rau hauv lub nce raws li lub beam zog.
2) Beam focal qhov chaw. Beam qhov loj me yog ib qho tseem ceeb tshaj plaws nyob rau hauv lub laser vuam vim nws txiav txim siab zog ceev. Tab sis rau high-power lasers, nws qhov kev ntsuas yog ib qho teeb meem nyuaj, txawm hais tias muaj ntau yam kev ntsuas tsis ncaj.
Lub diffraction-limited qhov chaw me me ntawm lub teeb tsom teeb tuaj yeem suav tau raws li lub teeb diffraction txoj kev xav, tab sis vim muaj qhov pom ntawm lub lens aberration, qhov tseeb qhov chaw loj dua qhov ntsuas tus nqi. Txoj kev yooj yim tshaj plaws yog txoj kev isothermal profileing, uas ntsuas qhov chaw focal thiab perforation txoj kab uas hla tom qab charring thiab nkag mus rau lub phaj polypropylene nrog cov ntawv tuab. Txoj kev no yuav tsum tau ua kom zoo rau lub zog laser thiab lub sijhawm ntawm cov nqaj ua haujlwm los ntawm kev ntsuas ntsuas.
3) Cov khoom siv nqus tau. Kev nqus ntawm lub teeb laser los ntawm cov ntaub ntawv yog nyob ntawm qee yam khoom tseem ceeb ntawm cov ntaub ntawv, xws li absorptivity, reflectivity, thermal conductivity, melting kub, evaporation kub, thiab lwm yam, qhov tseem ceeb tshaj plaws ntawm kev nqus yog nqus.
Cov yam tseem ceeb uas cuam tshuam rau qhov nqus ntawm cov khoom mus rau lub laser beam muaj xws li ob yam: thawj yog qhov resistivity ntawm cov khoom. Tom qab ntsuas qhov nqus ntawm qhov polished nto ntawm cov khoom, nws pom tau tias qhov nqus ntawm cov khoom yog proportional rau lub square cag ntawm cov resistivity, thiab cov resistivity txawv nrog kub. Qhov thib ob, lub xeev nto (los yog smoothness) ntawm cov khoom muaj ib qho tseem ceeb ntawm lub beam absorption tus nqi, uas muaj ib tug tseem ceeb rau lub vuam nyhuv.
Cov zis wavelength ntawm CO2 laser feem ntau yog 10.6 μm. Qhov nqus ntawm ceramics, iav, roj hmab, plastics thiab lwm yam tsis yog hlau yog siab heev nyob rau hauv chav tsev kub, thaum lub absorbing tus nqi ntawm cov ntaub ntawv hlau yog heev tsis zoo nyob rau hauv chav tsev kub, kom txog rau thaum cov khoom yog melted los yog txawm roj nws absorbs ntau heev. Nws yog qhov zoo heev los txhim kho cov khoom siv nqus ntawm cov kab teeb ci los ntawm kev siv cov txheej txheem los yog nto oxide zaj duab xis tsim.
4) Vuam ceev. Qhov vuam ceev muaj qhov cuam tshuam zoo rau kev nkag mus tob. Kev ua kom nrawm yuav ua rau qhov nkag mus tob, tab sis yog tias qhov ceev qis dhau, cov khoom yuav dhau los ua melted thiab cov khoom ua haujlwm yuav raug welded los ntawm. Yog li ntawd, muaj qhov tsim nyog vuam ceev ntau yam rau cov khoom siv tshwj xeeb nrog qee lub zog laser thiab qee qhov tuab, thiab qhov siab tshaj plaws nkag mus tau ntawm tus nqi sib txuas ceev. Daim duab 10-2 qhia txog kev sib raug zoo ntawm vuam ceev thiab qhov tob tob ntawm 1018 steel.
5) Cov roj tiv thaiv. Inert gas feem ntau yog siv los tiv thaiv lub pas dej molten hauv cov txheej txheem laser vuam. Thaum qee cov ntaub ntawv raug welded tsis hais txog ntawm oxidation saum npoo, kev tiv thaiv yuav tsis raug txiav txim siab, tab sis rau feem ntau cov ntawv thov, helium, argon, nitrogen thiab lwm yam roj siv feem ntau yog siv los tiv thaiv kom cov khoom ua haujlwm tiv thaiv oxidation thaum lub sij hawm soldering.
Helium tsis yog yooj yim ionized (siab dua ionization zog), uas tso cai rau lub laser mus rau smoothly, thiab lub beam zog mus txog saum npoo ntawm lub workpiece yam tsis muaj hindrance. Qhov no yog qhov zoo tshaj plaws tiv thaiv roj siv hauv laser vuam, tab sis nws kim dua.
Argon roj yog pheej yig dua thiab denser, yog li kev tiv thaiv zoo dua. Txawm li cas los xij, nws muaj kev cuam tshuam rau qhov kub ntawm cov hlau plasma ionization, uas tiv thaiv ib feem ntawm cov nqaj los ntawm kev tsoo lub workpiece, txo lub zog laser zoo rau vuam, thiab tseem ua rau cov vuam ceev thiab nkag mus. Qhov saum npoo ntawm qhov vuam tiv thaiv los ntawm argon yog smoother dua li thaum tiv thaiv los ntawm helium.
Nitrogen yog cov khoom siv hluav taws xob pheej yig tshaj plaws, tab sis nws tsis haum rau vuam qee hom stainless hlau, feem ntau yog vim muaj teeb meem metallurgical, xws li kev nqus, uas qee zaum ua rau porosity nyob rau hauv qhov sib tshooj.
Qhov thib ob muaj nuj nqi ntawm kev siv cov roj shielding yog los tiv thaiv lub tsom iav los ntawm cov hlau vapor paug thiab sputtering ntawm cov kua tee. Tshwj xeeb tshaj yog nyob rau hauv high-power laser welding, vim hais tias lub ejection yuav muaj zog heev, nws yog tsim nyog los tiv thaiv lub lens nyob rau lub sij hawm no.
Qhov thib peb muaj nuj nqi ntawm cov shielding roj yog hais tias nws yog heev zoo nyob rau hauv dissipating lub plasma ntaub thaiv npog uas ua los ntawm high-power laser vuam. Cov hlau vapor absorbs lub laser beam thiab ionizes rau hauv cov huab cua plasma, thiab cov roj tiv thaiv ib ncig ntawm cov hlau vapor kuj ionized vim cua sov. Yog tias muaj ntshav plasma ntau dhau lawm, lub laser beam yog me ntsis noj los ntawm plasma. Plasma muaj nyob rau ntawm qhov chaw ua haujlwm raws li lub zog thib ob, uas ua rau qhov nkag mus tob thiab qhov chaw ntawm lub pas dej weld nthuav dav. Lub recombination tus nqi ntawm electrons yog nce los ntawm nce peb lub cev sib tsoo ntawm electrons nrog ions thiab nruab nrab atoms kom txo tau cov electron ceev nyob rau hauv lub plasma. Qhov sib zog ntawm cov atoms nruab nrab, qhov sib tsoo ntau zaus thiab qhov siab dua qhov sib xyaw ua ke; Ntawm qhov tod tes, tsuas yog cov roj tiv thaiv nrog lub zog ionization siab yuav tsis ua kom cov electron ceev vim yog ionization ntawm cov roj nws tus kheej.
Qhov loj ntawm lub plasma huab sib txawv nrog cov roj siv tiv thaiv, nrog helium yog qhov tsawg tshaj plaws, nitrogen yog qhov thib ob, thiab argon yog qhov loj tshaj. Qhov loj ntawm plasma loj, qhov tob qhov nkag. Qhov laj thawj rau qhov sib txawv no yog thawj zaug vim qhov sib txawv ntawm ionization ntawm cov roj molecules, thiab kuj yog vim qhov sib txawv ntawm qhov sib txawv ntawm cov hlau vapor tshwm sim los ntawm qhov sib txawv ntawm cov roj shielding.
Helium yog qhov tsawg tshaj plaws ionized thiab tsawg ntom ntom, thiab nws sai sai tshem tawm cov hlau vapors uas tsim los ntawm cov hlau molten da dej. Yog li ntawd, siv helium los ua cov roj tiv thaiv kev tiv thaiv tuaj yeem cuam tshuam cov ntshav mus rau qhov loj tshaj plaws, yog li ua kom qhov tob tob thiab nce qhov vuam ceev; vim nws lub teeb yuag, nws tuaj yeem khiav thiab tsis yooj yim ua rau pores. Tau kawg, los ntawm peb qhov kev siv vuam tiag tiag, cov nyhuv ntawm argon tiv thaiv tsis yog qhov phem.
Cov nyhuv ntawm plasma huab ntawm kev nkag mus yog qhov pom tseeb tshaj plaws nyob rau hauv qhov chaw qis vuam ceev. Nws cov nyhuv diminishes thaum vuam ceev nce.
Lub shielding gas yog txhaj ntawm ib tug tej yam siab los ntawm lub nozzle mus txog rau saum npoo ntawm workpiece. Cov duab hydrodynamic ntawm lub nozzle thiab txoj kab uas hla ntawm qhov hluav taws xob yog qhov tseem ceeb heev. Nws yuav tsum yog qhov loj txaus los tsav cov tshuaj tiv thaiv roj los npog qhov chaw vuam, tab sis txhawm rau tiv thaiv lub lens zoo thiab tiv thaiv cov hlau vapor los ntawm kev sib kis los yog hlau txaws los ntawm kev puas tsuaj rau lub lens, qhov loj ntawm lub nozzle yuav tsum raug txwv. Tus nqi ntws yuav tsum tau tswj hwm, txwv tsis pub lub laminar ntws ntawm cov roj shielding yuav ua rau muaj kev kub ntxhov, thiab cov cua yuav koom nrog hauv lub pas dej molten, nws thiaj li tsim cov pores.
Txhawm rau txhim kho qhov kev tiv thaiv, ib qho ntxiv sab tshuab tuaj yeem siv tau, uas yog, los ntawm lub nozzle nrog lub taub me me, cov roj tiv thaiv tau ncaj qha rau hauv qhov me me ntawm qhov sib sib zog nqus nqus vuam ntawm ib lub kaum ntse ntse. Lub shielding roj tsis tsuas yog suppresses lub plasma huab nyob rau saum npoo ntawm lub workpiece, tab sis kuj exerts lub zog ntawm lub plasma thiab cov me me qhov nyob rau hauv lub qhov, ntxiv rau qhov tob tob tob, thiab tau txais ib tug weld nrog ib tug zoo tagnrho qhov tob-dav ratio. . Txawm li cas los xij, txoj kev no yuav tsum muaj kev tswj xyuas meej ntawm qhov loj thiab cov kev taw qhia ntawm cov huab cua ntws, txwv tsis pub turbulent flow yuav tshwm sim thiab rhuav tshem lub pas dej molten, ua rau cov txheej txheem vuam nyuaj kom ruaj khov.
6) Lens focal ntev. Txoj kev tsom xam feem ntau yog siv los ua kom lub laser thaum vuam, thiab lub lens nrog qhov ntev ntawm 63 ~ 254mm (2.5 "~ 10") feem ntau yog siv. Qhov tsom xam qhov loj me yog proportional rau lub focal ntev, qhov luv ntawm lub focal ntev, qhov me me qhov chaw. Tab sis lub focal ntev kuj cuam tshuam rau lub focal qhov tob, uas yog, lub focal qhov tob nce synchronously nrog lub focal ntev, yog li ib tug luv luv focal ntev yuav ua rau kom lub zog ceev, tab sis vim lub me me focal qhov tob, qhov deb ntawm lub lens thiab lub workpiece. yuav tsum tau khaws cia kom meej, thiab qhov tob tob tob tsis loj. Vim muaj kev cuam tshuam ntawm spatter thiab laser hom generated nyob rau hauv lub vuam txheej txheem, lub shortest focal tob siv nyob rau hauv tiag tiag vuam yog feem ntau lub focal ntev ntawm 126mm (5 "). qhov chaw loj, koj tuaj yeem xaiv lub lens nrog qhov ntev ntawm 254mm (10 "). Nyob rau hauv cov ntaub ntawv no, thiaj li yuav ua kom tiav qhov tob tob pinhole nyhuv, ib tug ntau dua laser tso zis zog (lub zog ceev) yuav tsum tau.
Thaum lub zog laser ntau dua 2kW, tshwj xeeb tshaj yog rau 10.6μm CO2 laser beam, vim yog siv cov khoom siv kho qhov muag tshwj xeeb los tsim cov kab ke kho qhov muag, txhawm rau kom tsis txhob muaj kev pheej hmoo ntawm kev puas tsuaj rau lub lens tsom, feem ntau yog siv cov khoom siv kho qhov muag. siv, thiab polished tooj liab iav feem ntau yog siv los ua tus reflector . Nws yog feem ntau pom zoo kom tsom rau lub zog siab laser kab teeb vim ua kom txias txias.
7) Focus position. Thaum vuam, txoj hauj lwm ua kom pom tseeb yog qhov tseem ceeb txhawm rau kom muaj lub zog txaus txaus. Kev hloov pauv ntawm qhov sib txheeb ntawm qhov chaw focal thiab qhov chaw ua haujlwm ncaj qha cuam tshuam rau qhov dav thiab qhov tob ntawm qhov vuam. Daim duab 2-6 qhia txog qhov cuam tshuam ntawm txoj haujlwm tsom rau qhov tob tob thiab seam dav ntawm 1018 steel.
Nyob rau hauv feem ntau laser vuam daim ntaub ntawv, lub focal point yog feem ntau nyob rau hauv kwv yees li 1/4 ntawm qhov xav tau qhov tob ntawm nkag mus rau hauv qab ntawm qhov chaw ntawm lub workpiece.
8) Laser beam txoj hauj lwm. Thaum laser vuam cov ntaub ntawv sib txawv, txoj hauj lwm ntawm lub laser beam tswj qhov kawg ntawm cov vuam, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv ntawm lub pob tw pob qij txha. Piv txwv li, thaum lub zog steel iav yog welded rau ib lub nruas me me, kev tswj kom zoo ntawm lub laser beam txoj hauj lwm yuav pab tsim ib qho kev sib txuas nrog cov feem ntau cov pa roj carbon monoxide uas tiv taus tawg. Hauv qee qhov kev siv, lub geometry ntawm lub workpiece yuav tsum tau welded yuav tsum tau lub laser beam yuav deflected los ntawm lub kaum sab xis. Thaum lub deflection lub kaum sab xis ntawm lub nqaj axis thiab lub dav hlau sib koom ua ke nyob rau hauv 100 degrees, qhov nqus ntawm lub zog laser los ntawm lub workpiece yuav tsis cuam tshuam.
9) Maj mam nce thiab poob tswj ntawm lub zog laser ntawm qhov pib thiab qhov kawg ntawm vuam. Thaum lub sij hawm laser sib sib zog nqus nqus vuam, qhov me me ib txwm muaj nyob tsis hais qhov tob ntawm qhov vuam. Thaum cov txheej txheem vuam raug kaw thiab lub hwj chim hloov tau raug tua, lub qhov dej yuav tshwm sim thaum kawg ntawm qhov vuam. Tsis tas li ntawd, thaum lub laser vuam txheej npog cov thawj weld seam, kev nqus ntawm lub laser ntau dhau yuav tshwm sim, uas ua rau overheating ntawm cov vuam los yog tsim cov pores.
Txhawm rau tiv thaiv qhov tshwm sim saum toj no tsis tshwm sim, lub zog pib thiab nres cov ntsiab lus tuaj yeem ua rau lub zog pib thiab lub sijhawm kawg kho tau, uas yog, lub zog pib yog hluav taws xob nce los ntawm xoom mus rau qhov teeb tsa hluav taws xob hauv lub sijhawm luv luv, thiab qhov vuam tuaj yeem hloov kho. Lub sij hawm, thiab thaum kawg lub zog yog maj mam txo los ntawm lub teeb lub hwj chim mus rau xoom thaum lub vuam raug txiav.
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Nta thiab qhov zoo thiab qhov tsis zoo ntawm laser tob tob welding
Nta ntawm laser tob tob welding
1) High nam piv. Raws li cov hlau molten nyob ib ncig ntawm lub cylindrical kab noj hniav ntawm cov chav kub kub thiab txuas mus rau lub workpiece, lub weld ua tob thiab nqaim.
2) Yam tsawg kawg nkaus cua sov input. Vim tias qhov kub thiab txias hauv qhov me me yog qhov siab heev, cov txheej txheem melting tshwm sim sai heev, cov cua sov nkag mus rau hauv qhov chaw ua haujlwm tsawg heev, thiab cov thermal deformation thiab tshav kub cuam tshuam qhov chaw me me.
3) High ceev. Vim hais tias cov pores me me uas muaj qhov kub-kub yog qhov tsim nyog rau kev ntxhov siab ntawm lub pas dej ua ke thiab kev khiav tawm ntawm cov pa roj, uas ua rau muaj kev nkag mus rau weld yam tsis muaj qhov pores. Qhov siab txias txias tom qab vuam tuaj yeem yooj yim ua rau cov qauv vuam zoo dua.
4) Muaj zog welds. Vim hais tias ntawm qhov blazing cua sov qhov chaw thiab txaus nqus ntawm cov khoom tsis yog hlau, cov ntsiab lus impurity yog txo, thiab qhov loj ntawm cov inclusions thiab lawv tis nyob rau hauv lub molten pas dej ua ke yog hloov. Cov txheej txheem vuam tsis tas yuav tsum muaj cov khoom siv hluav taws xob lossis cov xaim muab tub lim, thiab thaj chaw melting tsis tshua muaj kuab paug, kom lub zog thiab tawv ntawm cov vuam yog tsawg kawg yog sib npaug los yog siab dua li ntawm cov niam txiv hlau.
5) Precise tswj. Vim hais tias lub teeb pom kev zoo me me, lub vuam seam tuaj yeem muab tso rau hauv siab precision. Lub laser tso zis tsis muaj "inertia", nws tuaj yeem nres thiab rov pib dua ntawm kev kub ceev, thiab cov workpiece nyuaj tuaj yeem welded nrog cov lej tswj beam txav tshuab.
6) Cov txheej txheem tsis sib cuag atmospheric welding. Vim hais tias lub zog los ntawm lub teeb photon, tsis muaj kev sib cuag nrog lub cev, yog li tsis muaj kev quab yuam sab nraud siv rau lub workpiece. Tsis tas li ntawd, hlau nplaum thiab huab cua tsis cuam tshuam rau lub teeb laser.
Qhov zoo ntawm laser tob tob welding
1) Txij li thaum lub laser tsom muaj lub zog ntau dua li cov qauv siv, qhov vuam ceev ceev, qhov chaw kub thiab deformation yog me me, thiab cov ntaub ntawv nyuaj rau vuam xws li titanium kuj tuaj yeem welded.
2) Vim hais tias cov nqaj yog ib qho yooj yim rau kev xa thiab tswj, thiab tsis tas yuav hloov lub teeb thiab lub nozzle nquag, thiab tsis muaj lub tshuab nqus tsev uas yuav tsum tau siv rau electron beam vuam, uas ua rau txo qis lub sijhawm ua haujlwm ntawm lub sijhawm poob qis, yog li cov khoom thauj thiab ntau lawm efficiency yog siab.
3) Vim muaj cov nyhuv purification thiab txias txias, lub zog vuam, toughness thiab kev ua tau zoo yog siab.
4) Vim tias qhov nruab nrab cua sov input thiab siab ua precision, reprocessing nqi yuav raug txo; Tsis tas li ntawd, tus nqi khiav lag luam ntawm laser vuam kuj tseem tsawg, uas tuaj yeem txo cov nqi ua haujlwm.
5) Nws tuaj yeem tswj tau cov nqaj siv tau zoo thiab qhov chaw zoo, thiab nws yooj yim kom paub txog kev ua haujlwm tsis siv neeg.
Disadvantages ntawm laser tob tob welding
1) Vuam qhov tob yog txwv.
2) Cov kev cai sib dhos ntawm cov khoom ua haujlwm siab.
3) Kev nqis peev ib zaug ntawm lub tshuab laser yog qhov siab
