Sau npe yuav mus rau peb lub social media rau Prompt Post
Nruam Wave Laser
CW, lub ntsiab lus rau "Nruam Wave," hais txog cov tshuab laser uas muaj peev xwm muab cov khoom siv laser tsis cuam tshuam thaum lub sijhawm ua haujlwm. Cov cwj pwm los ntawm lawv lub peev xwm los tawm laser txuas ntxiv mus txog thaum lub sijhawm ua haujlwm tsis tu ncua, CW lasers txawv los ntawm lawv lub zog qis qis thiab siab dua nruab nrab lub zog piv rau lwm hom lasers.
Kev siv dav dav
Vim lawv cov khoom tso tawm tas mus li, CW lasers pom kev siv dav hauv cov teb xws li hlau txiav thiab vuam ntawm tooj liab thiab txhuas, ua rau lawv ntawm cov feem ntau siv thiab siv ntau hom lasers. Lawv lub peev xwm los xa cov khoom siv hluav taws xob tsis tu ncua thiab zoo ib yam ua rau lawv muaj txiaj ntsig hauv ob qho tib si kev ua tiav thiab cov xwm txheej ntau lawm.
Cov txheej txheem hloov tsis tau
Kho lub CW laser rau kev ua tau zoo ntawm cov txheej txheem yuav tsum tsom mus rau ntau yam tsis tseem ceeb, nrog rau lub zog waveform, defocus npaum li cas, beam qhov chaw txoj kab uas hla, thiab kev ceev. Kev kho qhov tseeb ntawm cov kev txwv no yog qhov tseem ceeb rau kev ua tiav cov txiaj ntsig zoo tshaj plaws, ua kom muaj txiaj ntsig thiab ua tau zoo hauv kev ua haujlwm laser machining.
Nruam Laser Energy Diagram
Kev faib hluav taws xob yam ntxwv
Ib qho tseem ceeb ntawm CW lasers yog lawv Gaussian lub zog faib, qhov twg lub zog faib ntawm lub laser beam cross-section diminishes los ntawm qhov chaw sab nraud nyob rau hauv ib tug Gaussian (ib txwm faib) qauv. Cov yam ntxwv ntawm kev faib tawm no tso cai rau CW lasers kom ua tiav qhov kev xav tau siab heev thiab kev ua haujlwm zoo, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas xav tau kev siv zog ntau.
CW Laser Energy Distribution Diagram
Qhov zoo ntawm Nruam Wave (CW) Laser Vuam
Microstructural foundations
Kev tshuaj xyuas cov microstructure ntawm cov hlau qhia qhov txawv ntawm qhov txuas txuas ntxiv Wave (CW) laser welding hla Quasi-Nruam Wave (QCW) pulse welding. QCW mem tes vuam, txwv los ntawm nws cov zaus txwv, feem ntau nyob ib ncig ntawm 500Hz, ntsib kev lag luam tawm ntawm tus nqi sib tshooj thiab qhov tob tob. Tus nqi sib tshooj qis ua rau tsis txaus qhov tob, qhov sib tshooj siab txwv tsis pub vuam ceev, txo kev ua haujlwm. Nyob rau hauv sib piv, CW laser welding, los ntawm kev xaiv ntawm tsim nyog laser core diameters thiab vuam taub hau, ua tau zoo thiab nruam vuam. Txoj kev no ua pov thawj tshwj xeeb txhim khu kev qha hauv daim ntawv thov uas xav tau kev foob siab.
Thermal Impact Consideration
Los ntawm qhov pom ntawm thermal cuam tshuam, QCW mem tes laser welding raug kev txom nyem los ntawm qhov teeb meem ntawm kev sib tshooj, ua rau rov ua cua sov ntawm lub vuam seam. Qhov no tuaj yeem ua kom paub qhov tsis sib xws ntawm cov hlau microstructure thiab cov khoom siv niam txiv, suav nrog kev hloov pauv hauv qhov ntau thiab tsawg thiab qhov cua txias, yog li ua rau muaj kev pheej hmoo ntawm kev tawg. CW laser vuam, ntawm qhov tod tes, zam qhov teeb meem no los ntawm kev muab cov txheej txheem cua sov ntau dua thiab tsis tu ncua.
Kev kho yooj yim
Nyob rau hauv cov nqe lus ntawm kev ua haujlwm thiab kev hloov kho, QCW laser welding xav tau kev kho kom zoo ntawm ntau qhov tsis sib xws, nrog rau cov mem tes repetition zaus, ncov lub zog, mem tes dav, lub voj voog lub luag haujlwm, thiab lwm yam. CW laser vuam ua kom yooj yim rau cov txheej txheem hloov kho, tsom feem ntau ntawm lub waveform, ceev, lub zog, thiab defocus tus nqi, txo qhov kev ua haujlwm nyuaj.
Technological Progress hauv CW Laser Vuam
Thaum QCW laser vuam paub txog nws lub siab ncov lub zog thiab tsis tshua muaj thermal input, muaj txiaj ntsig zoo rau vuam cov khoom siv hluav taws xob thiab cov ntaub ntawv nyias nyias, nce qib hauv CW laser vuam tshuab, tshwj xeeb tshaj yog rau cov ntawv siv hluav taws xob siab (feem ntau tshaj 500 watts) thiab sib sib zog nqus nqus vuam raws li cov nyhuv keyhole, tau nthuav dav nws daim ntawv thov ntau thiab kev ua haujlwm zoo. Hom laser no tshwj xeeb tshaj yog haum rau cov ntaub ntawv tuab dua 1 hli, ua tiav qhov sib piv siab (tshaj 8: 1) txawm tias muaj cua kub nkag.
Quasi-Continuous Wave (QCW) Laser Vuam
Focused Energy Distribution
QCW, sawv cev rau "Quasi-Nruam Wave," sawv cev rau lub tshuab laser uas lub laser emits lub teeb nyob rau hauv ib tug discontinuous yam, raws li tau piav nyob rau hauv daim duab a. Tsis zoo li lub zog tsis sib xws ntawm ib hom kev txuas ntxiv lasers, QCW lasers mloog zoo rau lawv lub zog ntau dua. Cov xeeb ceem no QCW lub zog zoo dua qub ntom ntom nti, txhais lus rau hauv lub peev xwm ua kom muaj zog. Cov nyhuv metallurgical tshwm sim zoo ib yam li "tus ntsia thawv" zoo li qhov sib piv ntawm qhov tob-rau-dav, tso cai rau QCW lasers ua tau zoo hauv cov ntawv thov uas muaj cov khoom siv hluav taws xob zoo, cov ntaub ntawv kub-rhiab, thiab precision micro-welding.
Txhim khu kev ruaj ntseg thiab txo Plume cuam tshuam
Ib qho ntawm qhov zoo tshaj plaws ntawm QCW laser vuam yog nws lub peev xwm los txo qhov cuam tshuam ntawm cov hlau plume ntawm cov khoom siv tus nqi nqus, ua rau cov txheej txheem ruaj khov dua. Thaum lub sij hawm sib cuam tshuam ntawm cov khoom siv laser, khaus evaporation tuaj yeem tsim kev sib xyaw ntawm cov hlau vapor thiab ntshav saum lub pas dej yaj, feem ntau hu ua hlau plume. Cov plume no tuaj yeem tiv thaiv cov khoom saum npoo ntawm lub laser, ua rau lub zog tsis ruaj khov thiab muaj qhov tsis xws luag xws li tawg, tawg cov ntsiab lus, thiab qhov pits. Txawm li cas los xij, qhov sib cuam tshuam emission ntawm QCW lasers (piv txwv li, 5ms tawg ua raws li 10ms nres) ua kom txhua lub laser pulse ncav cuag cov khoom siv saum npoo tsis cuam tshuam los ntawm cov hlau plume, uas ua rau muaj cov txheej txheem vuam ruaj khov, tshwj xeeb tshaj yog zoo rau cov ntawv nyias nyias.
Stable Melt Pool Dynamics
Lub zog ntawm lub pas dej yaj, tshwj xeeb tshaj yog nyob rau hauv cov nqe lus ntawm lub zog ua rau lub qhov tseem ceeb, yog qhov tseem ceeb hauv kev txiav txim siab qhov zoo ntawm cov vuam. Cov lasers tsis tu ncua, vim lawv qhov ntev ntev thiab cov cheeb tsam uas muaj cua sov loj dua, zoo li tsim cov pas dej loj dua uas muaj cov kua hlau. Qhov no tuaj yeem ua rau muaj qhov tsis xws luag cuam tshuam nrog cov pas dej loj loj, xws li lub qhov tseem ceeb tawg. Hauv qhov sib piv, lub zog tsom mus rau lub sijhawm luv luv ntawm QCW laser welding mloog zoo rau lub pas dej ua ke nyob ib ncig ntawm lub qhov tseem ceeb, uas ua rau muaj qhov sib txawv ntawm cov quab yuam ntau dua thiab qis dua qhov porosity, tawg, thiab spatter.
Minimized Heat-Afected Zone (HAZ)
Nruam laser welding kawm cov ntaub ntawv rau cov cua sov, ua rau cov thermal conduction tseem ceeb rau hauv cov khoom. Qhov no tuaj yeem ua rau qhov tsis zoo thermal deformation thiab kev ntxhov siab vim qhov tsis xws luag hauv cov ntaub ntawv nyias. QCW lasers, nrog rau lawv cov kev ua haujlwm tsis sib xws, tso cai rau cov ntaub ntawv lub sijhawm kom txias, yog li txo qhov cuam tshuam ntawm tshav kub thiab thermal input. Qhov no ua rau QCW laser welding tshwj xeeb tshaj yog tsim rau cov ntaub ntawv nyias thiab cov nyob ze cov khoom siv hluav taws xob.
Siab zog Peak
Txawm hais tias muaj lub zog nruab nrab zoo ib yam li cov lasers tas li, QCW lasers ua tiav lub zog siab dua thiab lub zog ntom ntom, ua rau muaj kev nkag mus tob dua thiab muaj zog vuam muaj peev xwm. Qhov kom zoo dua no yog tshwj xeeb tshaj yog nyob rau hauv lub vuam ntawm tooj liab thiab txhuas alloys 'nyias los xij. Nyob rau hauv sib piv, nruam lasers nrog tib lub zog nruab nrab yuav ua tsis tau tejyam los ua ib tug cim ntawm cov khoom nto vim lub zog qis, ua rau muaj kev xav. High-power nruam lasers, thaum muaj peev xwm ntawm melting cov khoom, muaj peev xwm muaj ib tug ntse nce nyob rau hauv nqus tus nqi tom qab melting, ua rau uncontrolled yaj qhov tob thiab thermal input, uas yog unsuitable rau nyias-daim ntawv vuam thiab tej zaum yuav ua rau tsis muaj cim los yog hlawv. - dhau los, ua tsis tau raws li cov txheej txheem.
Kev sib piv ntawm cov txiaj ntsig vuam ntawm CW thiab QCW lasers
a. Nruam Wave (CW) Laser:
- Qhov tshwm sim ntawm tus ntsia thawv laser kaw
- Qhov tshwm sim ntawm qhov ncaj weld seam
- Schematic daim duab ntawm lub laser emission
- Longitudinal hla ntu
b. Quasi-Continuous Wave (QCW) Laser:
- Qhov tshwm sim ntawm tus ntsia thawv laser kaw
- Qhov tshwm sim ntawm qhov ncaj weld seam
- Schematic daim duab ntawm lub laser emission
- Longitudinal hla ntu
- * Source: Tshooj lus los ntawm Willdong, ntawm WeChat Public Account LaserLWM.
- * Thawj tsab xov xwm txuas: https://mp.weixin.qq.com/s/8uCC5jARz3dcgP4zusu-FA.
- Cov ntsiab lus ntawm tsab xov xwm no yog muab rau kev kawm thiab kev sib txuas lus nkaus xwb, thiab tag nrho cov cai yog tus thawj sau. Yog tias muaj kev cuam tshuam txog kev ua txhaum cai, thov hu rau tshem tawm.
QCW Laser los ntawm Lumispot Tech:
CW laser:
Post lub sij hawm: Mar-05-2024