Cov txheej txheem dual-beam welding yog npaj siab, feem ntau los daws qhov kev hloov pauv ntawmlaser vuamlos ua ke raug, txhim kho kev ruaj ntseg ntawm cov txheej txheem vuam, thiab txhim kho qhov zoo ntawm cov vuam, tshwj xeeb tshaj yog rau nyias phaj vuam thiab aluminium alloy vuam. Ob-beam laser welding tuaj yeem siv txoj kev kho qhov muag los cais tib lub laser rau hauv ob lub teeb sib cais ntawm lub teeb rau vuam. Nws tseem tuaj yeem siv ob hom lasers los ua ke, CO2 laser, Nd: YAG laser thiab high-power semiconductor laser. tuaj yeem ua ke. Los ntawm kev hloov lub zog ntawm lub zog, nqaj sib nrug, thiab txawm tias lub zog faib qauv ntawm ob kab teeb, qhov vuam kub tuaj yeem hloov kho kom yooj yim thiab yoog raws, hloov cov qauv muaj nyob ntawm lub qhov thiab cov qauv ntws ntawm cov kua hlau hauv lub pas dej molten. , muab kev daws teeb meem zoo dua rau cov txheej txheem vuam. Qhov chaw loj ntawm kev xaiv yog unmatched los ntawm ib leeg-beam laser vuam. Nws tsis tsuas yog muaj qhov zoo ntawm qhov loj laser vuam nkag, ceev ceev thiab siab precision, tab sis kuj muaj zoo adaptability rau cov ntaub ntawv thiab cov pob qij txha uas nyuaj rau welding nrog pa laser vuam.
Txoj cai ntawmob-beam laser vuam
Ob-beam vuam txhais tau hais tias siv ob lub laser beam tib lub sijhawm thaum lub vuam txheej txheem. Cov kab teeb tsa, kab sib nrug, lub kaum sab xis ntawm ob kab teeb, tsom txoj hauj lwm thiab lub zog piv ntawm ob kab teeb yog tag nrho cov teeb meem cuam tshuam hauv ob-beam laser vuam. parameter. Nquag, thaum lub sij hawm vuam, feem ntau muaj ob txoj hauv kev los npaj ob kab teeb. Raws li pom nyob rau hauv daim duab, ib tug yog teem nyob rau hauv series raws li welding kev taw qhia. Qhov kev npaj no tuaj yeem txo qhov txias ntawm lub pas dej molten. Txo qhov hardenability nyiam ntawm weld thiab tiam ntawm pores. Lwm qhov yog los npaj lawv ib sab los yog crosswise ntawm ob sab ntawm weld los txhim kho qhov hloov pauv mus rau qhov sib txawv weld.
Ob chav beam laser vuam txoj cai
Ob-beam vuam txhais tau hais tias siv ob lub laser beam tib lub sijhawm thaum lub vuam txheej txheem. Cov kab teeb tsa, kab sib nrug, lub kaum sab xis ntawm ob kab teeb, tsom txoj hauj lwm thiab lub zog piv ntawm ob kab teeb yog tag nrho cov teeb meem cuam tshuam hauv ob-beam laser vuam. parameter. Nquag, thaum lub sij hawm vuam, feem ntau muaj ob txoj hauv kev los npaj ob kab teeb. Raws li pom nyob rau hauv daim duab, ib tug yog teem nyob rau hauv series raws li welding kev taw qhia. Qhov kev npaj no tuaj yeem txo qhov txias ntawm lub pas dej molten. Txo qhov hardenability nyiam ntawm weld thiab tiam ntawm pores. Lwm qhov yog los npaj lawv ib sab los yog crosswise ntawm ob sab ntawm weld los txhim kho qhov hloov pauv mus rau qhov sib txawv weld.
Rau lub tandem-txheej txheem dual-beam laser vuam system, muaj peb yam sib txawv vuam mechanisms nyob ntawm qhov kev ncua deb ntawm lub pem hauv ntej thiab nram qab beams, raws li qhia nyob rau hauv daim duab hauv qab no.
1. Hauv thawj hom vuam tshuab, qhov kev ncua deb ntawm ob kab teeb ntawm lub teeb yog qhov loj. Ib qho nqaj ntawm lub teeb muaj lub zog loj dua thiab tsom mus rau saum npoo ntawm workpiece los tsim cov keyoliece los tsim cov keyoles hauv vuam; lwm lub teeb ntawm lub teeb muaj lub zog me dua. Tsuas yog siv los ua qhov cua sov rau kev kho cua sov ua ntej lossis tom qab vuam. Siv cov txheej txheem vuam no, qhov cua txias ntawm lub pas dej vuam tuaj yeem tswj tau nyob rau hauv ib qho chaw, uas muaj txiaj ntsig zoo rau kev vuam qee cov ntaub ntawv uas muaj kev tawg siab, xws li cov pa roj carbon siab, cov hlau alloy, thiab lwm yam, thiab tuaj yeem txhim kho qhov toughness. ntawm weld.
2. Nyob rau hauv hom thib ob ntawm vuam mechanism, lub tsom nrug ntawm ob lub teeb kab teeb yog me me. Ob kab teeb ntawm lub teeb tsim ob lub qhov tseem ceeb hauv lub vuam pas dej, uas hloov cov qauv ntws ntawm cov kua hlau thiab pab tiv thaiv kev qaug dab peg. Nws tuaj yeem tshem tawm qhov tshwm sim ntawm qhov tsis xws luag xws li cov npoo thiab weld hlaws bulges thiab txhim kho cov txheej txheem vuam.
3. Nyob rau hauv peb hom vuam mechanism, qhov kev ncua deb ntawm ob kab teeb ntawm lub teeb yog me me heev. Lub sijhawm no, ob kab teeb ntawm lub teeb tsim tib lub qhov tseem ceeb hauv lub pas dej welding. Piv nrog rau ib leeg-nqaj laser vuam, vim hais tias qhov loj ntawm qhov keyhole yuav loj dua thiab tsis yooj yim rau kaw, cov txheej txheem vuam yog ruaj khov dua thiab cov roj tau yooj yim dua tawm, uas yog qhov zoo los txo qhov pores thiab spatter, thiab tau txais kev nruam, sib xws thiab zoo nkauj welds.
Thaum lub sij hawm vuam txheej txheem, ob lub teeb laser kuj tuaj yeem ua rau ntawm ib lub kaum ntse ntse rau ib leeg. Lub vuam mechanism yog zoo ib yam li lub parallel ob beam vuam mechanism. Cov txiaj ntsig kuaj pom tau hais tias los ntawm kev siv ob lub zog OOs nrog lub kaum sab xis ntawm 30 ° rau ib leeg thiab qhov deb ntawm 1 ~ 2 hli, lub laser beam tuaj yeem tau txais lub funnel-zoo li tus keyhole. Qhov loj ntawm qhov tseem ceeb yog qhov loj dua thiab ruaj khov, uas tuaj yeem txhim kho qhov vuam zoo. Hauv kev siv tswv yim, kev sib koom ua ke ntawm ob kab teeb ntawm lub teeb tuaj yeem hloov pauv raws li qhov sib txawv ntawm cov vuam sib txawv kom ua tiav cov txheej txheem vuam sib txawv.
6. Kev siv txoj kev ntawm ob-beam laser vuam
Kev nrhiav tau ntawm ob kab teeb tuaj yeem tau txais los ntawm kev sib txuas ob lub laser sib txawv, lossis ib lub laser beam tuaj yeem muab faib ua ob lub laser beams rau vuam siv lub tshuab optical spectrometry. Txhawm rau faib lub teeb ntawm lub teeb rau hauv ob qho tib si laser kab teeb ntawm lub zog sib txawv, siv lub spectroscope lossis qee qhov tshwj xeeb kho qhov muag. Daim duab qhia ob daim duab kos duab ntawm lub teeb pom kev zoo siv cov tsom iav tsom iav raws li cov kab hluav taws xob sib cais.
Tsis tas li ntawd, lub reflector kuj tseem siv tau los ua cov kab hluav taws xob sib cais, thiab qhov kawg reflector hauv txoj kev kho qhov muag tuaj yeem siv los ua cov kab hluav taws xob sib cais. Hom reflector no tseem hu ua lub ru tsev-hom reflector. Nws lub ntsej muag tsis yog ib qho chaw tiaj tus, tab sis muaj ob lub dav hlau. Txoj kab kev sib tshuam ntawm ob qhov chaw cuam tshuam yog nyob rau hauv nruab nrab ntawm daim iav nto, zoo ib yam li lub ru tsev ridge, raws li qhia hauv daim duab. Ib lub teeb ntawm lub teeb sib npaug ci ci rau ntawm lub spectroscope, yog qhov cuam tshuam los ntawm ob lub dav hlau ntawm cov ces kaum sib txawv los ua ob kab teeb ntawm lub teeb, thiab ci rau ntau txoj haujlwm ntawm daim iav tsom. Tom qab tsom, ob kab teeb ntawm lub teeb tau txais ntawm ib qho kev ncua deb ntawm qhov chaw ntawm lub workpiece. Los ntawm kev hloov lub kaum sab xis ntawm ob qhov chaw uas muaj kev cuam tshuam thiab qhov chaw ntawm lub ru tsev, cov kab teeb pom kev sib txawv tuaj yeem tau txais qhov sib txawv ntawm qhov sib txawv thiab kev teeb tsa.
Thaum siv ob hom sib txawv ntawmlaser beam to tsim ib tug ob chav nqaj, muaj ntau yam ua ke. Lub tshuab hluav taws xob zoo CO2 nrog Gaussian lub zog faib tuaj yeem siv rau kev ua haujlwm vuam tseem ceeb, thiab lub tshuab hluav taws xob semiconductor nrog lub zog sib npaug tuaj yeem siv los pab hauv kev kho cua sov ua haujlwm. Ntawm qhov tod tes, qhov kev sib xyaw ua ke no yog kev lag luam ntau dua. Ntawm qhov tod tes, lub zog ntawm ob lub teeb ci tuaj yeem hloov kho ntawm nws tus kheej. Rau cov ntawv sib txawv sib txawv, qhov ntsuas kub hloov tau tuaj yeem tau los ntawm kev kho qhov sib tshooj ntawm lub laser thiab semiconductor laser, uas yog qhov tsim nyog rau vuam. Cov txheej txheem tswj. Tsis tas li ntawd, YAG laser thiab CO2 laser kuj tuaj yeem ua ke rau hauv ob lub nqaj rau vuam, nruam laser thiab mem tes laser tuaj yeem ua ke rau vuam, thiab tsom beam thiab defocused beam kuj tuaj yeem ua ke rau vuam.
7. Lub hauv paus ntsiab lus ntawm ob-beam laser vuam
3.1 Ob-beam laser vuam ntawm galvanized nplooj ntawv
Galvanized steel ntawv yog cov khoom siv feem ntau siv hauv kev lag luam tsheb. Lub melting point ntawm hlau yog nyob ib ncig ntawm 1500 ° C, thaum lub boiling point ntawm zinc tsuas yog 906 ° C. Yog li ntawd, thaum siv txoj kev fusion vuam, ntau cov zinc vapor feem ntau yog tsim, ua rau cov txheej txheem vuam tsis ruaj khov. , tsim pores nyob rau hauv lub weld. Rau cov pob qij txha, cov volatilization ntawm galvanized txheej tsis tsuas yog tshwm sim ntawm sab sauv thiab sab saum toj, tab sis kuj tshwm sim ntawm qhov sib koom ua ke. Thaum lub sij hawm vuam txheej txheem, zinc vapor sai sai ejects tawm ntawm lub pas dej ua ke molten nto nyob rau hauv qee qhov chaw, thaum nyob rau lwm qhov chaw nws yog ib qho nyuaj rau zinc vapor kom dim ntawm lub pas dej ua ke. Nyob rau saum npoo ntawm lub pas dej, qhov vuam zoo yog tsis ruaj khov.
Ob chav-beam laser vuam tuaj yeem daws cov teeb meem vuam zoo los ntawm zinc vapor. Ib txoj hauv kev yog los tswj lub sijhawm muaj nyob thiab qhov txias ntawm lub pas dej molten los ntawm kev sib piv lub zog ntawm ob kab teeb los pab txhawb kev khiav ntawm zinc vapor; Lwm txoj kev yog Tso zinc vapor los ntawm kev xuas nrig ua ntej los yog grooving. Raws li pom hauv daim duab 6-31, CO2 laser yog siv rau vuam. Lub YAG laser yog nyob rau hauv pem hauv ntej ntawm lub CO2 laser thiab yog siv los laum qhov los yog txiav grooves. Pre-processed qhov los yog grooves muab txoj kev khiav rau zinc vapor generated thaum lub sij hawm tom ntej welding, tiv thaiv nws los ntawm seem nyob rau hauv lub molten pas dej ua ke thiab tsim tsis xws luag.
3.2 Ob-beam laser vuam ntawm aluminium alloy
Vim muaj cov yam ntxwv tshwj xeeb ntawm cov khoom siv aluminium alloy, muaj cov teeb meem hauv qab no hauv kev siv laser vuam [39]: aluminium alloy muaj qhov nqus qis ntawm laser, thiab thawj qhov kev cuam tshuam ntawm CO2 laser beam nto tshaj 90%; aluminium alloy laser vuam seams yog yooj yim los tsim Porosity, tawg; Kev kub hnyiab ntawm cov ntsiab lus hlau thaum lub sij hawm vuam, thiab lwm yam. Thaum siv ib lub laser vuam, nws yog ib qho nyuaj rau tsim kom muaj qhov keyhole thiab tswj kev ruaj ntseg. Muab ob npaug rau-beam laser vuam tuaj yeem ua kom qhov loj ntawm qhov keyhole, ua rau nws nyuaj rau lub qhov tseem ceeb kaw, uas yog qhov zoo rau cov pa tawm. Nws tuaj yeem txo qhov txias txias thiab txo qhov tshwm sim ntawm qhov pores thiab vuam tawg. Txij li cov txheej txheem vuam yog qhov ruaj khov dua thiab tus nqi ntawm qhov tawg yog txo, qhov vuam qhov chaw tau txais los ntawm ob-nqaj vuam ntawm aluminium alloys kuj tseem zoo dua li ntawm ib-nqaj vuam. Daim duab 6-32 qhia tau hais tias cov tsos ntawm cov weld seam ntawm 3 hli tuab aluminium alloy taub qab vuam siv CO2 ib leeg-beam laser thiab ob-beam laser vuam.
Kev tshawb fawb qhia tau hais tias thaum vuam 2 hli tuab 5000 series aluminium alloy, thaum qhov kev ncua deb ntawm ob kab teeb yog 0.6 ~ 1.0mm, cov txheej txheem vuam yog qhov ruaj khov thiab qhov qhib qhov qhib loj dua, uas yog qhov tsim nyog rau evaporation thiab khiav ntawm magnesium thaum lub sij hawm. txheej txheem vuam. Yog tias qhov kev ncua deb ntawm ob kab teeb me me dhau lawm, cov txheej txheem vuam ntawm ib kab teeb yuav tsis ruaj khov. Yog tias qhov kev ncua deb loj dhau, qhov kev nkag mus rau vuam yuav raug cuam tshuam, raws li pom hauv daim duab 6-33. Tsis tas li ntawd, lub zog piv ntawm ob kab teeb kuj muaj kev cuam tshuam zoo rau kev vuam zoo. Thaum ob kab teeb nrog qhov sib nrug ntawm 0.9mm yog teem rau hauv cov khoom siv vuam, lub zog ntawm cov nqaj yav dhau los yuav tsum tau nce kom tsim nyog kom lub zog piv ntawm ob kab teeb ua ntej thiab tom qab ntau dua 1: 1. Nws yog qhov pab tau los txhim kho qhov zoo ntawm vuam seam, nce qhov chaw melting, thiab tseem tau txais kev sib tw thiab zoo nkauj vuam seam thaum vuam ceev.
3.3 Ob chav nqaj vuam ntawm cov phaj tuab tuab
Hauv kev tsim khoom, feem ntau nws yog qhov tsim nyog los txuas ob lossis ntau daim hlau ntawm cov thicknesses sib txawv thiab cov duab los tsim cov phaj sib txuas. Tshwj xeeb tshaj yog nyob rau hauv tsheb ntau lawm, daim ntawv thov ntawm tailor-welded blanks yog ua ntau thiab ntau dua. Los ntawm vuam daim hlau nrog txawv specifications, nto txheej los yog cov khoom, lub zog yuav nce, consumables txo, thiab zoo txo. Laser vuam ntawm daim hlau sib txawv thicknesses feem ntau yog siv nyob rau hauv vaj huam sib luag vuam. Ib qho teeb meem loj yog tias daim hlau yuav tsum tau welded yuav tsum tau preformed nrog high-precision npoo thiab xyuas kom meej high-precision sib dhos. Kev siv ob-nqaj vuam ntawm cov phaj tuab tsis sib xws tuaj yeem hloov mus rau qhov sib txawv ntawm qhov sib txawv ntawm cov phaj sib txawv, cov pob qij txha, cov tuab tuab thiab cov ntaub ntawv phaj. Nws tuaj yeem vuam daim hlau nrog ntug loj thiab qhov sib txawv thiab txhim kho vuam ceev thiab vuam zoo.
Cov txheej txheem tseem ceeb ntawm Shuangguangdong txoj kev vuam ntawm cov hlau tsis sib npaug tuaj yeem muab faib ua cov vuam tsis thiab cov phaj tsis, raws li qhia hauv daim duab. Vuam tsis muaj xws li lub hwj chim ntawm ob lub laser beams, vuam ceev, tsom txoj hauj lwm, vuam lub taub hau lub kaum sab xis, beam rotation lub kaum sab xis ntawm ob-beam taub qab sib koom thiab vuam offset, thiab lwm yam. , thiab lwm yam. Lub zog ntawm ob lub laser beam tuaj yeem hloov kho sib txawv raws li qhov sib txawv vuam lub hom phiaj. Txoj haujlwm ua kom pom tseeb yog feem ntau nyob rau saum npoo ntawm cov phaj nyias kom ua tiav cov txheej txheem vuam ruaj khov thiab ua tau zoo. Lub vuam lub taub hau lub kaum sab xis feem ntau yog xaiv nyob ib ncig ntawm 6. Yog hais tias lub thickness ntawm ob daim hlau yog loj, ib tug zoo vuam taub hau lub kaum sab xis yuav siv tau, uas yog, lub laser yog tilted rau nyias phaj, raws li qhia nyob rau hauv daim duab; Thaum lub phaj thickness me me, qhov tsis zoo vuam lub taub hau lub kaum sab xis yuav siv tau. Lub vuam offset yog txhais raws li qhov kev ncua deb ntawm lub laser tsom thiab ntug ntawm cov phaj tuab. Los ntawm kev kho qhov vuam offset, tus nqi ntawm cov vuam vuam tuaj yeem txo qis thiab qhov zoo ntawm qhov sib tsoo tuaj yeem tau txais.
Thaum vuam daim hlau nrog qhov khoob loj, koj tuaj yeem ua kom cov kab hluav taws xob ua kom zoo dua los ntawm kev tig lub kaum sab xis ob sab kom tau txais qhov sib txawv zoo. Qhov dav ntawm sab saum toj ntawm lub vuam yog txiav txim siab los ntawm txoj kab uas hla zoo ntawm ob lub laser beam, uas yog, lub kaum sab xis ntawm lub nqaj. Qhov ntau dua lub kaum sab xis, qhov dav ntawm qhov cua sov ntawm ob lub nqaj, thiab qhov dav ntawm qhov siab ntawm qhov vuam ntau dua. Ob lub laser beams ua lub luag haujlwm sib txawv hauv cov txheej txheem vuam. Ib qho yog tsuas yog siv los nkag rau hauv lub seam, thaum lwm qhov yog siv los yaj cov khoom siv phaj tuab los sau qhov sib txawv. Raws li pom nyob rau hauv daim duab 6-35, nyob rau hauv ib tug zoo beam rotation lub kaum sab xis (pem hauv ntej beam ua nyob rau hauv lub tuab phaj, lub rear beam ua nyob rau hauv weld), pem hauv ntej beam yog tshwm sim ntawm lub phaj tuab kom sov thiab yaj cov khoom, thiab cov nram qab no Lub teeb laser tsim kev nkag mus. Thawj lub laser beam nyob rau hauv pem hauv ntej tuaj yeem tsuas yog ib feem ntawm cov phaj tuab, tab sis nws muaj txiaj ntsig zoo rau cov txheej txheem vuam, vim tias nws tsis tsuas yog yaj sab ntawm cov phaj tuab kom zoo dua qhov sib txawv, tab sis kuj ua ntej sib koom ua ke cov khoom sib koom ua ke. cov kab teeb hauv qab no Nws yog qhov yooj yim dua rau vuam los ntawm cov pob qij txha, tso cai rau kev vuam sai. Nyob rau hauv ob-beam vuam nrog ib tug tsis zoo tig lub kaum sab xis (lub pem hauv ntej beam ua nyob rau hauv lub vuam, thiab lub rear beam ua nyob rau hauv tuab phaj), ob kab teeb muaj raws nraim qhov opposite nyhuv. Lub qub beam melts qhov sib koom ua ke, thiab tom kawg beam melts lub phaj tuab kom sau nws. qhov sib txawv. Nyob rau hauv cov ntaub ntawv no, lub pem hauv ntej beam yuav tsum tau welded los ntawm lub txias phaj, thiab lub vuam ceev yog qeeb dua siv lub zoo beam rotation kaum. Thiab vim yog cov nyhuv preheating ntawm cov nqaj yav dhau los, cov kab tom kawg yuav yaj cov ntaub ntawv tuab dua nyob rau hauv tib lub zog. Nyob rau hauv cov ntaub ntawv no, lub hwj chim ntawm lub tom kawg laser beam yuav tsum raug txo kom tsim nyog. Nyob rau hauv kev sib piv, siv lub zoo beam rotation lub kaum sab xis yuav tsim nyog nce lub vuam ceev, thiab siv ib tug tsis zoo beam rotation lub kaum sab xis yuav ua tau zoo dua qhov sib txawv. Daim duab 6-36 qhia txog kev cuam tshuam ntawm cov kab sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txuas.
3.4 Ob chav-beam laser welding ntawm cov phaj loj nrog kev txhim kho ntawm lub zog laser qib thiab beam zoo, laser vuam ntawm cov hlau tuab loj tau dhau los ua qhov tseeb. Txawm li cas los xij, vim tias cov lasers siab zog yog kim thiab vuam ntawm cov phaj tuab loj feem ntau xav tau cov hlau muab tub lim, muaj qee qhov kev txwv hauv kev tsim khoom tiag tiag. Kev siv dual-beam laser vuam tshuab tuaj yeem tsis tsuas yog ua kom lub zog laser, tab sis kuj ua kom cov kab hluav taws xob ua kom zoo, ua kom muaj peev xwm yaj cov xaim hlau, ua kom lub laser keyhole, txhim kho vuam stability, thiab txhim kho vuam zoo.
Lub sij hawm xa tuaj: Plaub Hlis-29-2024
