Ua ntej, lub hauv paus ntsiab lus ntawm laser vuam tshuab
Nyob rau hauv lub plawv ntawm lub laser vuam tshuab yog ib tug heev concentrated zog beam generated los ntawm ib tug laser lub teeb qhov chaw, uas yog feem ntau generated los ntawm ib tug laser generator thiab teem rau hauv ib tug heev me me cheeb tsam los ntawm ib tug sophisticated optical system. Laser lub teeb ci tuaj yeem muaj ntau hom, xws li cov khoom siv hauv lub xeev lasers (xws li, Nd:YAG, fiber ntau lasers), roj lasers (xws li, CO₂ lasers), lossis semiconductor lasers.
1. Laser zog hloov dua siab tshiab thiab kis tau tus mob
Ua ntej, lub laser vuam tshuab generates lub laser los ntawm ib tug excitation nruab nrab (xws li, ib tug xenon teeb emitting lub teeb los ntawm ib tug Nd:YAG siv lead ua tsav los ntawm ib tug high voltage, los yog ib tug doped tsis tshua muaj lub ntiaj teb element fiber nyob rau hauv lub fiber laser zoo siab los ntawm lub twj tso kua mis lub teeb qhov chaw. ). Lub laser beam dhau los ntawm cov iav tsom iav thiab kho qhov muag txoj hauv kev los xyuas kom meej tias nws yog collimated thiab tsom, thiab thaum kawg hits qhov sib koom ua ke ntawm cov khoom yuav tsum tau welded nrog lub zog ceev ceev heev.
2. Thermal conduction thiab sib sib zog nqus welding hom
Cov txheej txheem laser vuam tau muab faib ua ob hom yooj yim raws li lub zog ceev:
Thermal conduction welding: Thaum lub laser fais fab ceev yog tsawg (kwv yees tsawg dua 10 ^ 4 ~ 10 ^ 5 W / cm²), lub zog laser feem ntau xa mus rau sab hauv ntawm cov khoom siv los ntawm cov khoom siv hluav taws xob, kom cov khoom ntog. yog melted thiab ib tug ntiav molten pas dej ua ke yog tsim, thiab ces welding twb paub lawm. Hom no yog tsim rau vuam ntawm cov ntaub ntawv nyias nyias los yog qhov tseeb, qhov vuam ceev kuj qeeb, tab sis qhov tseeb yog siab.
Laser sib sib zog nqus welding: Thaum lub laser fais fab ceev nce mus rau ntau tshaj 10 ^ 5 ~ 10 ^ 7 W / cm², lub laser beam tuaj yeem ua kom sov ntawm cov khoom mus rau qhov kub thiab txias, ua rau "qhov nyhuv". Qhov kub-kub vapor siab ua rau cov hlau nyob ib puag ncig ntws, tsim kom muaj qhov sib sib zog nqus, nqaim, zoo li lub pas dej ua ke. Cov hlau molten ntws rov qab nyob ib ncig ntawm lub qhov tseem ceeb, txias thiab solidifies los ua ib qho kev sib koom ua ke uas muaj zog welded, uas yog tus cwj pwm los ntawm kev nkag mus tob, kev kub ceev thiab loj nam piv.
3. Tswj thiab optimization
Nyob rau hauv cov txheej txheem laser vuam, nws yog ib qho tseem ceeb rau precisely tswj txoj hauj lwm ntawm lub laser tsom, vuam ceev, lub zog laser, thiab kev tiv thaiv huab cua. Kev saib xyuas lub sijhawm tiag tiag thiab lub zog tawm tswv yim ua kom muaj kev ruaj khov thiab txhim khu kev qha vuam txheej txheem nrog kev pom kev nkag mus, tsawg kawg ntawm tshav kub cuam tshuam thiab zoo tagnrho weld seam morphology.