Laser welding yog tsom lub laser beam rau ntawm qhov chaw ntawm lub workpiece los ntawm ib tug optical lens, yog li ntawd cov khoom yog sai melted los ua ib tug molten pas dej ua ke, thiab ces txias sai heev los tsim ib tug welded sib koom.Nws muaj cov yam ntxwv ntawm qhov loj nam piv, ceev vuam ceev, thiab tsis sib cuag nrog lub workpiece, uas yog ib qho yooj yim mus cuag Automated ntau lawm, yog li cov txheej txheem no tau dav siv.Txawm li cas los xij, vim muaj kev sib cuam tshuam ntawm lub laser tshav kub qhov chaw thiab cov khoom siv thaum lub sij hawm laser vuam txheej txheem, nrog rau cov khoom tshwj xeeb lub cev ntawm aluminium alloys thiab tooj liab alloys, cov ntaub ntawv muaj kev cuam tshuam siab laser siab thaum lub sij hawm vuam, cov txheej txheem vuam tsis ruaj khov, thiab yooj yim los tsim porosity tsis xws luag, thiab lwm yam teeb meem.Thaum siv cov lasers zoo tib yam los txuas cov ntaub ntawv muaj txiaj ntsig zoo xws li txhuas thiab tooj liab, qhov tawg ntawm lub qhov tseem ceeb yuav tsim qhov me me thiab txaws.Vim yog cov splashes, cov hlau vuam yuav raug txo, uas ua rau cov pits thiab tsis sib xws;Ntxiv mus, cov ntaub ntawv no muaj siab laser reflectivity, tus nqi nqus yog tsawg, thiab feem ntau ntawm lub zog yog reflected, ua rau tsis zoo fusion ntawm cov muab tub lim;Nyob rau tib lub sij hawm, thaum lub sij hawm txias txias, vim lub txias txias ceev, solubility ntawm hydrogen thiab lwm yam gases nyob rau hauv lub molten pas dej ua ke yog sharply txo thiab nws yog lig dhau lawm khiav, ua rau lub pores.tsim tawm.
Mainstream vuam txoj kev los txo spatter thiab porosity
Yuav ua li cas kom tsis txhob spatter, txo porosity, thiab tau ib tug du weld yog ib qho nyuaj heev nyob rau hauv vuam cov ntaub ntawv high-reflection.Ntau lub tuam txhab hauv tsev thiab txawv teb chaws tau txuas ntxiv tshawb nrhiav qhov no thiab tau tsim lawv cov khoom lag luam.
(1) Siv lub viav vias vuam lub taub hau Lub viav vias vuam txoj kev tuaj yeem cuam tshuam lub zog ceev, txhim kho qhov sib xws ntawm qhov kub thiab txias, thiab txo qhov tsim ntawm spatter thiab pores rau qee yam.Tam sim no, mainstream laser taub hau manufacturers (xws li Jiaqiang, Wanshunxing, Kirin, thiab lwm yam) tau launched zoo xws li viav vias laser vuam taub hau.Tab sis tib lub sijhawm, muaj qee qhov tsis zoo.Txij li thaum lub zog ceev ntawm lub laser raug txo, lub zog yuav tsum tau nce los yog qhov vuam ceev yuav tsum tau qeeb.
(2) Siv lub dual-wavelength composite vuam taub hau los muab cov fiber ntau laser thiab semiconductor laser nrog lub dual-wavelength composite vuam taub hau, thiab sib tshooj ntawm vuam taw tes.Lub fiber laser ua qhov sib sib zog nqus welding.Minimize txaws.Tam sim no, laser taub hau manufacturers xws li Jiaqiang thiab Wanshunxing kuj tau launched xws li vuam taub hau.Txawm li cas los xij, txoj kev vuam no yuav tsum tau siv ob lub lasers, thiab cov khoom siv ua ke yog qhov nyuaj dua.
(3) Laser nrog qhov tshwj xeeb
Qhov kev daws teeb meem zoo tshaj plaws yog nyob rau sab laser, hloov Gaussian tis laser rau lub nplhaib + nruab nrab lub teeb, qhov chaw teeb pom kev zoo tuaj yeem lav qhov tob ntawm lub pas dej molten, thiab lub nplhaib lub teeb qhov chaw plays lub luag haujlwm ntawm preheating thiab qeeb txias, uas. yog muab piv nrog cov saum toj no-hais dual-wavelength composite vuam txoj cai.zoo sib xws.Cov tuam txhab lag luam laser tau tsim cov lasers zoo sib xws, xws li IPG's AMB laser thiab Raycus 'ABP laser.
Dab tsi yog FRM ntawm GW Laser Tech
Nyob rau hauv kev teb rau cov teeb meem vuam ntawm cov ntaub ntawv hais txog cov khoom siv high-reflection, GW Laser tau tshawb nrhiav tsis tu ncua ntawm txoj kev ntawm kev txhim kho thev naus laus zis, thiab tau tsim cov khoom siv hluav taws xob zoo welding kws tshaj lij - FRM (Flexible Ring Mode) dynamic chaw tso zis laser, uas. tuaj yeem txo cov txheej txheem vuam ntawm cov ntaub ntawv zoo.Txau thiab porosity tiam.
Lub FRM laser ob peb optical modules rau hauv cov tub ntxhais txheej thiab lub nplhaib core txheej ntawm cov fiber ntau los ntawm ib tug customized coupler, khub ob lub laser beams rau hauv ib tug beam, thiab ces tsom nws rau ntawm qhov chaw ntawm lub workpiece los tsim ib tug sib xyaw chaw.Los ntawm kev kho qhov tsim nyog lub zog piv, qhov dav dav dav dav thiab qhov sib piv tsis tshua muaj vuam seam nam piv tuaj yeem tsim tau, uas tuaj yeem txhim kho qhov ruaj khov ntawm qhov keyhole, thiab tuaj yeem txo qhov tawg thiab txo qhov rhiab heev.
FRM laser tuaj yeem tswj tau lub zog ntawm lub teeb fiber ntau thiab lub nplhaib tseem ceeb.Nws tsuas tuaj yeem tig lub teeb hauv nruab nrab lossis lub nplhaib lub teeb, lossis ob qho tib si tuaj yeem tig rau tib lub sijhawm los tsim peb hom ntawm qhov chaw zoo tib yam, qhov chaw annular, thiab qhov chaw sib xyaw;Yog tias tig rau tib lub sijhawm, nws tuaj yeem ua rau cov tub ntxhais thiab lub nplhaib nplhaib tuaj yeem ua rau lub hauv paus tseem ceeb muaj zog ntau dua li lub nplhaib tseem ceeb lub zog, lossis lub hauv paus tseem ceeb lub zog tuaj yeem ua rau me dua lub nplhaib core zog, lossis lub hauv paus tseem ceeb ntawm lub zog sib npaug. mus rau lub nplhaib tseem ceeb lub zog, thiab tag nrho ntawm tsib qhov chaw sib txawv tuaj yeem hloov tau.
Txoj kab uas hla ntawm qhov chaw nruab nrab yog me me thiab lub zog ceev yog siab.Lub vuam yog ua raws li kev sib sib zog nqus welding hom, uas yuav tsim ib lub qhov tseem ceeb thiab tsim ib lub pas dej molten nrog ib tug loj nam piv.Txawm li cas los xij, nws muaj cov kev xav tau siab ntawm qhov sib txawv, thiab ntau qhov kev kub siab hlau vapor raug tso tawm thaum lub qhov tseem ceeb yog tsim los ntawm kev sib sib zog nqus welding, uas yog feem ntau cuam tshuam rau cov ntsiab lus tawg thiab tawg.Qhov kub ntawm lub pas dej molten yog siab thiab cov dej ntws sab hauv yog qhov hnyav, thiab qhov hloov pauv ntawm lub pas dej molten yog pom tseeb.
Txoj kab uas hla ntawm qhov chaw annular yog loj thiab lub zog ceev yog me me.Lub vuam yog ua raws li cov txheej txheem cua sov, uas tuaj yeem tsim lub pas dej dav dav.Txij li thaum lub thermal conduction welding tsis tsim lub qhov tseem ceeb, qhov kub ntawm lub pas dej molten yog tsawg thaum lub sij hawm vuam, thiab tsis muaj qhov pom tseeb molten pas dej ua ke.Spatter, lub weld yog tiaj thiab zoo nkauj.Txawm li cas los xij, vim muaj lub zog tawg ntom ntom ntom ntom ntom ntom, ib qho tob tob tob tsis tau.
Ua ke ob qho tib si ua ke, los ntawm kev kho qhov tsim nyog lub zog piv, thaum lub hauv paus qhov chaw lav qhov tob ntawm lub pas dej molten, qhov chaw annular tsub kom qhov dav thiab ntev ntawm lub pas dej molten, ntawm ib sab, txhim kho qhov ruaj khov ntawm qhov keyhole thiab txo. splashing Ntawm qhov tod tes, qhov ntws ntawm lub pas dej molten yog qhov ruaj khov dua, cov npuas dej dhau mus ntev, thiab qhov tshwm sim ntawm cov porosity tsim yog txo.
Lub FRM laser tuaj yeem muab tag nrho cov zis hluav taws xob txog li 20KW, thiab tuaj yeem hloov kho qhov tsis zoo ntawm lub teeb tso zis.Txoj kab uas hla ntawm lub nruab nrab nqaj tso zis fiber ntau yog 50μm / 150μm, thiab lub zog tso zis ntau txog 10KW;txoj kab uas hla ntawm lub nplhaib beam tso zis fiber ntau yog 150μm / 300μm, thiab cov zis hluav taws xob yog mus txog 10KW.Lub hauv paus beam yog fiber ntau laser nrog lub wavelength ntawm 1070nm, thiab lub nplhaib beam tuaj yeem nruab nrog 976nm semiconductor laser ntxiv rau 1070nm fiber ntau laser kom paub qhov sib xyaw ntawm dual-wavelength thiab dual-laser kab.
FRM zoo heev vuam nyhuv
Txhawm rau kom muaj kev cuam tshuam cov txiaj ntsig ntawm FRM, cov hauv qab no siv FRM laser thiab laser zoo tib yam rau vuam aluminium alloys thiab sib piv lawv.
A 1.5KW + 1.5KW (50μm + 150μm) FRM laser tau siv los vuam 6061 aluminium alloy nrog lub thickness ntawm 3 hli, thiab piv nrog 3KW (100μm) zoo tib yam laser.Nws tuaj yeem pom tseeb tias qhov tawg ntawm FRM laser welding yog qhov me dua li ntawm cov laser vuam zoo tib yam.
Cov qauv welded raug txiav qhib rau kev soj ntsuam metallographic.Vim yog cov nyhuv ntawm qhov chaw annular, qhov vuam tau los ntawm FRM laser muaj qhov dav sab saum toj thiab hauv qab nqaim, thiab sab sauv thiab sab qis yog qhov yooj yim;Thaum lub vuam dav ntawm qhov zoo tib yam laser vuam yog qhov yooj yim flush nyob rau sab saum toj thiab hauv qab, thiab sab saum toj nto yog vau thiab hauv qab nto yog convex.
Lub zog tensile ntawm welded seam tom qab vuam tau sim, thiab lub zog tensile ntawm FRM vuam yog zoo dua li ntawm cov laser vuam zoo tib yam.
Cov ntawv thov tseem ceeb ntawm FRM
Tuam Tshoj suav hais tias lub zog tshiab tsheb yog ib qho ntawm nws xya lub tswv yim kev lag luam.Txij li thaum lub hwj chim lithium roj teeb pob yog lub hauv paus tseem ceeb ntawm lub zog tshiab tsheb, nrog kev txhim kho txuas ntxiv ntawm lub zog tshiab, nws kuj tau siv dav thiab tsim raws li.
Raws li kev txheeb cais los ntawm Tuam Tshoj Kev Tshawb Fawb Lub Tsev Haujlwm ntawm Puhua, kev thov thoob ntiaj teb rau cov roj teeb lithium yuav nce ntxiv los ntawm 2017 txog 2020, thiab qhov kev thov rau cov khoom siv roj teeb lithium tseem yuav nce ntxiv hauv 3-5 xyoo tom ntej.Txoj kev loj hlob sai ntawm kev lag luam roj teeb lithium tau ua rau cov tuam txhab loj los txhim kho kev tsim kho tshiab thiab kev nthuav dav ntawm cov peev txheej ntau lawm.
Kev nyab xeeb ntawm lub pob roj teeb tseem ceeb heev.Thaum muaj qhov cuam tshuam tsis zoo tshwm sim, nws yuav ua rau muaj qhov tshwm sim loj heev thiab ua rau tib neeg lub neej.Ntawm lawv, qhov tseem ceeb uas ua lub luag haujlwm txiav txim siab hauv kev nyab xeeb ntawm lub tsheb hluav taws xob yog qhov vuam ntawm qhov tseem ceeb ntawm lub hwj chim roj teeb pob.Cov khoom tseem ceeb tshaj plaws nyob rau hauv cov haujlwm no yog aluminium alloy, nrog rau kev tawg-pov thawj li qub, cell seals, tabs, busbars, thiab lwm yam .;ua raws li cov khoom siv tooj liab, xws li cov ncej, tabs, thiab lwm yam. Qhov vuam zoo ntawm cov haujlwm no yuav cuam tshuam ncaj qha rau kev ntseeg siab ntawm cov roj teeb zoo.
Rau qhov sib txawv ntawm cov roj teeb hluav taws xob, FRM laser siv Guanghui Laser tuaj yeem daws qhov teeb meem vuam zoo, paub txog xoom spatter hauv vuam, tsis muaj qhov hws ntawm qhov chaw, ruaj khov nkag, du thiab zoo nkauj vuam seam, txhim kho vuam zoo. , thiab ua kom muaj kev ruaj ntseg ntawm lub hwj chim roj teeb.Kev sib deev thiab kev nyab xeeb.
Kev hloov pauv ntawm lub ntiaj teb kev lag luam tsheb mus rau hluav taws xob yog qhov sib txawv, thiab raws li qhov kev txhim kho dav dav no, nws yuav tsum tau ua kom muaj kev xav tau ntau dua rau lithium-ion vuam thev naus laus zis, thiab lithium-ion roj teeb ua lag luam tau dhau los ua lag luam tseem ceeb rau cov laser hauv tsev. tuam txhab.Guanghui Laser yuav txuas ntxiv rau kev siv zog hauv thaj tsam ntawm lithium roj teeb vuam.Los ntawm kev ywj pheej innovation, laser iterative upgrades yuav raug coj los pab cov neeg muas zaub txhim kho cov txheej txheem vuam thiab txhim khu cov khoom muaj kev ruaj ntseg thiab kev sib tw.
Sau: GW Laser daim ntawv thov engineer Jiaxing Gu
Post lub sij hawm: Feb-15-2022