Laser welding yog qhov tsis tseem ceeb laser vuam ua cov txheej txheem nyob rau hnub no' s kev lag luam ntau lawm. Nws yog kev dhau rau cov txheej txheem thev naus laus zis kev paub ntawm cov kab ke vuam. Muaj feem xyuam rau txhua daim ntawv thov ntawm laser vuam nyob hauv kev lag luam kev tsim kev lag luam, koom nrog tsheb, nkoj tsim, aviation kev lag luam thiab lwm qhov kev lag luam siab, nrog rau ntau cov ntawv thov, thiab cov khoom siv laser vuam muaj peb qhov kev ntsuas tseem ceeb.
1 、 Laser mem tes dav dav tsis muaj:
Mem tes dav yog ib qho ntawm cov ntsuas qhov ua tau zoo ntawm mem tes laser vuam. Nws tsis yog tsuas yog cov txiaj ntsig tseem ceeb uas ua rau pom kev sib txawv ntawm cov khoom tu thiab cov khoom ua kom yaj, tab sis tseem yog qhov ntsuas ua tau zoo tseem ceeb uas yog nyob ntawm pob peev nyiaj thiab ntim ntawm cov khoom lag luam.
2 parameters Laser zog ntom ntom ntom:
Lub zog ntom ntuag yog ib qho tseem ceeb tshaj plaws ntawm cov ntsuas kev ua tau zoo hauv laser vuam. Nrog lub zog hluav taws xob ceev, qhov saum npoo tau rhaub mus rau qhov chaw kom tsis pub dhau lub sijhawm ntawm feeb thiab feeb, ua rau ntau qhov kev faib tawm. Yog li ntawd, qhov siab zog hluav taws xob tau txais txiaj ntsig zoo rau cov khoom tshem tawm, xws li qhib, laser txiav thiab laser carving. Txog lub hwj chim uas tsis muaj hluav taws xob, nws yuav tsum siv ob peb milliseconds rau saum npoo kom ncav cuag melting point ntawm chav tsev kub. Ua ntej cov nplaim yog roj, qhov qis txheej tuaj yeem ncav cuag melting point, uas yog qhov yooj yim los tsim cov fusion zoo tshaj plaws laser vuam. Yog li ntawd, nyob rau hauv kev xa cov laser vuam, lub zog ntuag muaj nyob hauv thaj tsam ntawm 104 ~ 106 W / cm 2.
3 parameters Laser mem tes waveform tsis:
Laser mem tes waveform yog qhov teeb meem tseem ceeb hauv laser vuam, tshwj xeeb tshaj yog rau cov phaj tuab laser vuam. Thaum lub siab toughness particle nqaj mus tsoo rau saum npoo ntawm cov khoom siv, 60-98% ntawm cov particle beam lub zog ntawm cov hlau nto yuav muaj kev cuam tshuam thiab puas, thiab qhov cuam tshuam yuav hloov nrog qhov kub qhov chaw. Kev cuam tshuam ntawm cov hlau hloov zuj zus thaum lub sijhawm ua haujlwm ntawm ib qho me me ntawm cov nqaj nqaj hlau loj.
Piv nrog cov tsoos vuam ib txwm, laser vuam muaj cov zoo li hauv qab no:
{{0} Nrho. Kev kub ceev, qhov siab tob thiab me deformation.
{{0} Nrho. Laser welding refractory cov ntaub ntawv xws li titanium, quartz, thiab lwm yam tuaj yeem siv rau laser vuam ntawm cov ntaub ntawv sib txawv, thiab cov nyhuv zoo dua.
{{0} Nrho. Tom qab laser tsom, lub zog ceev tau yog siab. Hauv laser vuam ntawm cov cuab yeej siv siab, qhov siab tshaj plaws yog 5: 1, thiab qhov siab tshaj yog 1 0: 1.
{{0} Nrho. Particle nqaj tau yooj yim faib teeb nqaj raws qhov chaw thiab sijhawm. Nws muaj peev xwm paub txog laser welding ua nrog ntau lub nqaj thiab ntau lub zog txoj haujlwm laser vuam ua, uas muab tus qauv rau ntau kom zoo dua thiab zoo laser vuam.
{{0} Nrho. Me me laser vuam tuaj yeem pom tau hais. Tom qab ua kom pom tseeb, lub particle nqaj tuaj yeem tau txais cov teeb pom kev me me, thiab tuaj yeem ua qhov chaw muaj tseeb, uas tuaj yeem siv rau hauv kev sib dhos thiab vuam ntawm cov lej loj ntawm cov ntse tsim micro thiab workpiece me.
{{0} Nrho. Nws tuaj yeem siv rau laser vuam nyob qhov twg nws yog qhov nyuaj rau kev nkag tau. Nws muaj qhov laj thawj loj heev los siv rau kev tsis kov thiab deb deb laser vuam. Tshwj xeeb nyob rau hauv xyoo tas los no, nyob rau hauv cov txheej txheem ntawm YAG laser vuam, qhov kho qhov muag kis tau tus kab mob laser welding tshuab tau xaiv, uas ua rau lub tshuab laser vuam siv ntau dua.
{{0} Nrho. Nws tuaj yeem nqa tawm laser vuam nyob hauv qhov kub lossis txias sab hauv tsev lossis kev ua kom pom tseeb, thiab cov cuab yeej laser vuam yog qhov yooj yim rau kev txhim kho. Piv txwv, raws li electromagnetic nthwv dej, lub teeb ntawm particle nqaj tsis yooj yim rau kev dag; laser vuam tuaj yeem nqa tawm hauv lub tshuab nqus tsev, roj av thiab qee yam pa roj, thiab laser vuam tuaj yeem nqa tawm los ntawm kev siv iav los yog cov khoom siv pob tshab ntawm nqaj
