Kev Vuam Laser Yog Dab Tsi? [Ntu 2]

Laser Welding yog ib txoj kev sib koom ua ke uas meej thiab siv tau zoo

Hauv kev xaus, laser welding muab cov txiaj ntsig ceev ceev, zoo nrog kev cuam tshuam tsawg kawg nkaus.

Nws hloov tau raws li ntau yam khoom siv thiab tuaj yeem hloov kho kom tau raws li qhov xav tau tshwj xeeb ntawm txhua daim ntawv thov.

Ib qho ntawm cov txiaj ntsig zoo ntawm laser welding yog nws qhov versatility.

Nws siv tau los vuam tsis yog tsuas yog cov hlau xws li txhuas, tooj liab, thiab stainless hlau tab sis kuj muaj ntau yam khoom siv.

Xws li qee cov thermoplastics, iav, thiab composites.

Qhov no ua rau nws muaj txiaj ntsig zoo rau ntau yam lag luam, los ntawm kev tsim khoom siv tsheb mus rau cov khoom siv hluav taws xob thiab txawm tias kev tsim khoom siv kho mob.

Tsab Xov Xwm Sib Xws: >>5 Yam Txog Laser Welding (Tias Koj Tsis Tau Paub)

Cov Ntsiab Lus

1. Yog dab tsiKev vuam laser? [Ntu 2]

2. Vim li casLaser fiber ntauyog qhovZoo tshaj plawsrau Laser Vuam?

3. Kev coj ua thiab qhov tseem ceebKev vuam laser

4. Cov Ntaub Ntawv Sib Xws: Laser Vuam

Kev Siv Laser Welding Yog Dab Tsi? [Ntu 2]

Kev Sawv Cev ntawm Yav Tom Ntej Tshiab

Kev vuam laser yog ib txoj kev siv tshuab tshiab uas siv lub teeb laser muaj zog heev los txuas cov khoom siv, feem ntau yog cov hlau, los ntawm kev yaj lawv ntawm qhov chaw sib cuag.

Cov txheej txheem no tsim kom muaj kev sib txuas ruaj khov, ruaj khov nrog kev hloov pauv tsawg kawg nkaus piv rau cov txheej txheem vuam ib txwm muaj.

Nws ua haujlwm sai, ua haujlwm tau zoo, thiab muaj peev xwm tsim tau cov txiaj ntsig zoo.

Lub plawv ntawm Laser Welding

Hauv plawv ntawm laser welding yog lub teeb laser nws tus kheej, uas tsim cov cua sov loj heev.

Thaum lub laser tsom mus rau ntawm qhov chaw hlau, nws yaj cov khoom, tsim cov pas dej me me.

Lub pas dej no khov sai sai, feem ntau yog hauv milliseconds, thaum lub laser txav mus deb, ua rau muaj kev sib txuas zoo ntawm cov khoom.

Cov txheej txheem no raug tswj hwm zoo heev, txhais tau tias tsuas yog cov cheeb tsam uas raug welded thiaj li raug cuam tshuam, thiab cov khoom seem feem ntau tsis raug cuam tshuam.

Nkag Siab Txog Kev Siv Laser Welding

Ib txoj hauv kev yooj yim los nkag siab txog laser welding yog xav txog lub iav tsom iav uas tsom lub hnub lub teeb rau ntawm ib qho chaw me me.

Ib yam li lub teeb uas tsom mus rau ib qho chaw tuaj yeem yaj ib daim ntawv, lub teeb laser tsom lub zog loj heev rau ntawm qhov chaw hlau.

Ua rau nws yaj thiab, qee zaum, txawm tias ua pa.

Lub zog ceev ntawm Laser Beam Vuam

Lub zog ntawm lub laser yog ntsuas los ntawm lub zog ceev.

Uas yog siab heev - ncav cuag ntau lab watts ib square centimeter.

Lub zog ntawm lub laser ntau dua, qhov txheej txheem vuam sai dua, thiab qhov tob dua qhov kub tuaj yeem nkag mus rau hauv cov khoom.

Txawm li cas los xij, lub zog laser siab dua kuj ua rau tus nqi ntawm cov khoom siv nce siab.

Ua rau nws yog ib qho tseem ceeb thaum xav txog tag nrho cov nqi ntawm lub tshuab.

>> Rov qab mus rau sab saum toj

Tshiab rau Laser Vuam & Handheld Laser Vuam?
Peb Pab Tau!

Tiv Tauj Peb

Vim li cas Fiber Laser thiaj yog qhov zoo tshaj plaws rau Laser Welding?

Piav Qhia Txog Qee Hom Lasers Hauv Laser Welding

Txhua hom laser muaj nws lub zog thiab qhov tsis muaj zog, ua rau lawv haum rau ntau daim ntawv thov hauv laser vuam.

Fiber lasers yog qhov ntau yam thiab ua haujlwm tau zoo tshaj plaws, tshwj xeeb tshaj yog rau kev vuam hlau.

Thaum CO2 lasers muaj txiaj ntsig zoo rau cov khoom ua haujlwm voj voog tab sis xav tau kev saib xyuas ntau dua.

Nd:YAG lasers zoo tagnrho rau cov haujlwm tshwj xeeb xws li kho pwm, tab sis lawv cov kev siv hluav taws xob tsawg thiab cov nqi kho siab tuaj yeem ua rau muaj kev txwv.

Thaum kawg, diode lasers muab kev siv hluav taws xob zoo heev tab sis tsis tshua muaj txiaj ntsig thaum xav tau qhov tseeb siab.

Fiber Laser Vuam: Nrov Tshaj Plaws & Tau Pom Zoo

Fiber lasers tam sim no yog cov thev naus laus zis nrov tshaj plaws thiab tau lees paub rau kev vuam laser.

Lawv paub txog lawv cov kev siv hluav taws xob siab, kwv yees li 30%.

Uas pab tswj kev thermal zoo dua thiab txo cov nqi khiav lag luam.

Lub infrared wavelength emitted los ntawm fiber lasers yog zoo-absorbed los ntawm feem ntau cov hlau.

Ua rau lawv muaj txiaj ntsig zoo rau ntau yam haujlwm vuam.

Ib qho ntawm cov txiaj ntsig loj tshaj plaws ntawm cov lasers fiber yog lawv lub peev xwm los tsim thiab coj cov teeb laser los ntawm cov cable fiber optic.

Qhov no tso cai rau qhov zoo ntawm lub teeb, kev ua kom raug dua, thiab lub zog ceev dua, uas ua rau muaj kev nkag mus tob thaum vuam.

Tsis tas li ntawd xwb, cov lasers fiber muaj kev siv tsawg kawg nkaus ntawm cov khoom siv, txo cov nqi txij nkawm thiab qhov nyuaj.

Lawv kuj tseem tuaj yeem sib xyaw ua ke tau yooj yim nrog cov neeg hlau lossis CNC tshuab, ua rau lawv muaj ntau yam hauv kev teeb tsa kev lag luam.

Lwm qhov txiaj ntsig yog tias tsis muaj kev txwv rau lub zog ntawm cov lasers fiber, ua rau muaj kev vuam zoo txawm tias ntawm cov ntaub ntawv tuab.

CO2 Laser: Zoo rau qee cov ntawv thov

CO2 lasers yog thawj hom laser siv rau kev vuam laser kev lag luam thiab tseem siv rau hauv qee daim ntawv thov.

Cov lasers no tso tawm cov roj laser uas tsis tuaj yeem coj los ntawm cov fiber optics.

Uas ua rau lub teeb qis dua piv rau cov lasers fiber.

Qhov no ua rau lawv tsis meej rau qee qhov kev siv vuam.

Cov laser CO2 feem ntau yog siv rau kev vuam cov khoom ua haujlwm puag ncig vim tias lub laser tuaj yeem kho tau rau hauv qhov chaw thaum lub workpiece tig.

Txawm li cas los xij, lawv xav tau kev saib xyuas ntau dua vim yog qhov xav tau cov khoom siv ntau zaus xws li daim iav thiab roj.

Nrog rau qhov nruab nrab ntawm kev siv hluav taws xob ntawm kwv yees li 20%, CO2 lasers tsis siv hluav taws xob zoo li fiber lasers.

Ua rau cov nqi khiav lag luam siab dua.

Nd:YAG Laser: Ua pov thawj nrog kev txwv

Nd:YAG (Neodymium-doped Yttrium Aluminium Garnet) lasers yog ib qho thev naus laus zis uas tau ua pov thawj hauv kev vuam laser

Tab sis lawv tuaj nrog qee qhov kev txwv.

Lawv muaj kev siv hluav taws xob tsawg, feem ntau yog li 5%.

Uas ua rau muaj teeb meem kev tswj hwm thermal thiab cov nqi ua haujlwm siab dua.

Ib qho ntawm lub zog ntawm Nd: YAG lasers yog lawv lub peev xwm los coj lub teeb laser siv cov fiber optics, uas ua rau lub teeb zoo dua.

Txawm li cas los xij, nws tseem nyuaj rau tsom lub teeb laser rau ntawm qhov chaw me me, txwv lawv qhov kev ua tau zoo hauv qee daim ntawv thov.

Nd:YAG lasers feem ntau siv rau cov haujlwm tshwj xeeb xws li kho pwm, qhov twg qhov kev tsom mus rau ntau dua yog qhov lees txais.

Lawv kuj muaj cov nqi kho vajtse siab, vim tias cov khoom siv xws li daim iav thiab teeb pom kev zoo yuav tsum tau hloov tas li.

Diode Laser: Nyuaj rau kev tsom xam vim yog qhov tsis zoo ntawm lub teeb

Diode lasers tau dhau los ua ntau dua hauv cov ntawv thov uas xav tau kev siv hluav taws xob siab (kwv yees li 40%).

Qhov kev ua haujlwm siab no ua rau kev tswj hwm thermal zoo dua thiab cov nqi khiav lag luam qis dua piv rau qee hom laser.

Txawm li cas los xij, ib qho ntawm cov teeb meem loj ntawm diode lasers yog tias lawv cov beam zoo tsis zoo heev.

Uas ua rau nws nyuaj rau tsom lub laser rau ntawm qhov chaw me me.

Qhov no txwv lawv qhov kev ua haujlwm raug hauv qee qhov kev siv vuam.

Txawm li ntawd los, diode lasers tseem siv tau rau qee yam khoom siv, tshwj xeeb tshaj yog plastics, thiab siv tau zoo hauv cov ntawv thov ntawd.

>> Rov qab mus rau sab saum toj

Xav Pib Siv Lub Tshuab Welding Fiber Laser Handheld?

Tiv Tauj Peb

Kev Sib Txuas Lus thiab Kev Vuam Laser Keyhole

Nkag Siab Txog Cov Txheej Txheem Vuam Uas Siv Tau Ntau

Laser vuam tuaj yeem muab faib ua ob hom tseem ceeb: conduction vuam thiab keyhole vuam.

Ob txoj kev no txawv ntawm qhov uas lub laser cuam tshuam nrog cov khoom siv thiab cov txiaj ntsig uas lawv tsim tawm.

Qhov Txawv Tseem Ceeb

Kev Zoo ntawm Vuam

Kev vuam conduction feem ntau ua rau cov txiaj ntsig huv dua nrog tsawg dua spatter thiab tsawg dua qhov tsis zoo, thaum kev vuam qhov tseem ceeb tuaj yeem ua rau muaj ntau spatter, porosity, thiab thaj chaw cuam tshuam los ntawm cua sov loj dua.

Kev Faib Kub Vuam

Kev vuam conduction faib cov cua sov kom sib npaug rau txhua qhov kev taw qhia, thaum kev vuam qhov tseem ceeb tsom cov cua sov rau hauv qhov nqaim dua, perpendicular, ua rau nkag mus tob dua.

Kev Ceev Vuam

Kev vuam qhov tseem ceeb sai dua, ua rau nws tsim nyog rau kev tsim khoom ntau, thaum kev vuam conduction qeeb dua tab sis muab kev raug dua.

Kev vuam conduction

Kev vuam hlau conduction yog ib qho txheej txheem uas maj mam thiab qeeb dua. Hauv txoj kev no, lub teeb laser yaj cov hlau saum npoo.

Ua rau cov hlau mus txog nws qhov kub sib xyaw (qhov chaw uas nws hloov mus ua kua).

Tab sis tsis txhob mus dhau qhov ntawd mus rau qhov kub ntawm kev ua pa (qhov chaw uas cov hlau yuav hloov mus ua roj).

Cov cua sov tau faib thoob plaws hauv cov khoom siv, txhais tau tias kev hloov pauv cua sov tshwm sim hauv txhua qhov kev taw qhia hauv cov hlau.

Vim tias kev vuam conduction yaj cov khoom maj mam dua, nws tsim cov txiaj ntsig zoo dua.

Qhov no suav nrog qhov tsawg kawg nkaus spatter (cov me me ntawm cov khoom yaj uas tuaj yeem tawm thaum lub sijhawm vuam) thiab cov pa tsawg, ua rau cov txheej txheem huv dua.

Txawm li cas los xij, vim nws qeeb dua, kev vuam conduction feem ntau yog siv rau cov ntawv thov uas xav tau kev ua kom raug thiab cov pob qij txha zoo dua li qhov ceev.

Kev Vuam Qhov Tseem Ceeb

Kev vuam qhov tseem ceeb, ntawm qhov tod tes, yog qhov txheej txheem ceev dua thiab nruj dua.

Hauv txoj kev no, lub teeb laser yaj thiab ua pa cov hlau, tsim ib lub qhov me me, tob lossis lub qhov tseem ceeb hauv cov khoom siv.

Lub laser qhov kub heev ua rau cov hlau mus txog nws qhov kub fusion thiab qhov kub vaporization.

Nrog rau qee lub pas dej ua kua hloov mus ua roj.

Vim tias cov khoom siv tau ua pa, qhov cua sov raug xa mus rau lub teeb laser ntau dua, ua rau lub pas dej vuam tob dua thiab nqaim dua.

Cov txheej txheem no sai dua li kev vuam conduction, ua rau nws zoo tagnrho rau cov kab ntau lawm.

Txawm li cas los xij, qhov kub ceev thiab kub heev tuaj yeem ua rau muaj kev tawg, thiab qhov yaj sai kuj tuaj yeem ua rau muaj porosity (cov pa roj me me uas raug kaw hauv qhov vuam).

Thiab thaj chaw uas raug cua sov cuam tshuam loj dua (HAZ) (thaj chaw nyob ib puag ncig qhov vuam uas raug hloov pauv los ntawm cua sov).