Laser welding yog ib qho kev sib koom ua ke zoo tshaj plaws uas siv cov hluav taws xob muaj zog laser kom yaj thiab fuse cov ntaub ntawv nrog qhov tshwj xeeb. Los ntawm kev tswj cov laser tsis tseem ceeb - nrog rau cov mem tes dav, lub zog tso zis, lub zog siab tshaj plaws, thiab rov ua dua zaus - cov txheej txheem tsim kom muaj lub pas dej ua ke molten, ua kom siab - zoo welds thoob plaws ntau hom kev lag luam.
Yuav Ua Li Cas Laser Vuam Ua Haujlwm
Thaum lub sij hawm laser welding, lub laser beam heats saum npoo ntawm lub workpiece, thiab lub thermal zog yog ces ua rau sab hauv los ntawm cov khoom ntawm tshav kub hloov lwm lub tsev. Cov txheej txheem tswj cua sov no tso cai rau cov khoom siv yaj thiab tsim ib lub pas dej molten, uas ua kom muaj zog los ua kom muaj zog, sib koom ua ke.
Laser welding tuaj yeem ua tau los ntawm kev siv txuas ntxiv -yoj los yog mem tes laser beams, nyob ntawm daim ntawv thov. Raws li lub hauv paus ntawm lub cev mechanism, laser vuam feem ntau muab faib ua ob hom:
1. Thaum tshav kub kub conduction vuam
Thaum lub zog ntawm lub zog laser yog qhov tsawg (feem ntau qis dua 10⁵ W / cm²), cov txheej txheem ua haujlwm hauv kev ua kom sov. Hauv hom no, lub zog laser yog absorbed los ntawm qhov chaw ntawm lub workpiece thiab xa mus rau sab hauv los ntawm thermal conduction. Yog li ntawd, lub weld nkag mus yog ntiav, thiab qhov vuam ceev yog piv qeeb dua. Hom vuam no yog qhov zoo tagnrho rau cov ntawv thov uas yuav tsum tau ua kom du, zoo nkauj pleasing weld seams nrog qhov tob me me.
2. Qhov tob tob (Keyhole) Vuam
Thaum lub laser fais fab tuag ntau tshaj li ntawm 10⁵ W / cm², lub zog hnyav ua rau cov hlau nto vaporize thiab tsim ib qhov tob, nqaim kab noj hniav hu ua "keyhole." Qhov keyhole no tso cai rau lub laser beam nkag mus tob rau hauv cov khoom, uas ua rau ib tug weld nrog ib tug siab qhov tob - mus rau - dav ratio. Kev sib sib zog nqus nqus vuam yog tus cwj pwm los ntawm nws qhov ceev vuam ceev thiab qhov tob tob tob, ua rau nws haum rau cov ntaub ntawv tuab thiab siab - lub zog ntawm cov pob qij txha.
Cov ntawv thov kev lag luam
Laser vuam tshuabtau txais kev pom zoo thoob plaws -precision manufacturing sectors, suav nrog:
- Automotive kev lag luam- rau lub cev-hauv-dawb sib dhos, cov khoom siv fais fab, thiab kev tsim roj teeb
- Aerospace thiab aviation- rau lub teeb yuag structural Cheebtsam
- Shipbuilding- rau hull panels thiab precision fittings
- High - tsheb ciav hlau ceev- rau carriage manufacturing
- Cov khoom siv hauv tsev- rau seamless, siab - ua tiav zoo ntawm cov khoom siv
Ib qho tseem ceeb tseem ceeb nyob rau hauv tsheb laser vuam yog Volkswagen txoj kev loj hlob ntawm 42-meter seamless vuam tshuab, uas zoo heev txhim kho cov qauv kev ncaj ncees thiab stability ntawm lub tsheb lub cev. Kev tshoov siab los ntawm qhov kev nce qib no, Haier Group - ib lub tuam txhab ua khoom siv hauv tsev - tau qhia thawj lub tshuab ntxhua khaub ncaws uas tsim los ntawm laser seamless vuam tshuab, nqa cov khoom lag luam qib siab rau hauv cov khoom siv hauv tsev niaj hnub.
Raws li kev siv tshuab laser txuas ntxiv mus, nws cov ntawv thov tau nthuav dav mus rau ntau qhov chaw. Los ntawm kev tsim tsheb mus rau cov neeg siv khoom siv hluav taws xob, laser vuam muab qhov tsis sib xws, kev ua haujlwm zoo, thiab kev ntseeg siab - tsav tsheb tshiab thiab txhim kho cov khoom zoo uas ua rau peb lub neej txhua hnub.