Laser vuam: txoj cai ntawm kev ua haujlwm thiab cov txiaj ntsig

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2024-01-02 13:55

Hlau tuaj yeem txuas nrog ntau txoj hauv kev. Txoj kev txhim khu kev qha thiab kev vam meej tshaj plaws kom tau txais cov pob qij txha ruaj khov ntawm ntau yam khoom yog laser vuam. Ua tsaug rau cov thev naus laus zis no, nws tuaj yeem ua tsis tau tsuas yog ua kom tiav qhov zoo thiab qhov tseeb, tab sis kuj tuaj yeem koom nrog cov ntaub ntawv nrog lub siab melting point lossis siab thermal conductivity. Lub sijhawm luv luv, tswj tau melting lub sij hawm thiab tsawg melting ntim ua rau nws muaj peev xwm mus welding txawm qhov chaw uas cov pa txoj kev tsis nyob rau hauv tag nrho cov haum.

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Laser vuam yog qhov sib txawv ntawm qhov laser beam tso cai rau lub zog siab ntawm qhov taw tes uas nws txoj kab uas hla tsis tshaj li ob peb micrometers. Lub hwj chim theem nce mus txog 10 ^ 8 W / cm2, uas yog ntau tshaj, piv txwv li, ib tug arc muab. Nyob rau hauv cov nqe lus ntawm lub zog concentration, laser vuam tsuas yog muab piv nrog hluav taws xobbeam (nws lub zog yog li 10^6 W / cm2). Tab sis yog tias tom kawg tsuas yog siv tau rau hauv lub tshuab nqus tsev, tom qab ntawd laser vuam tuaj yeem nqa tawm hauv ib puag ncig nrog qee yam roj tiv thaiv (CO _{2, Nws, Ar) lossis yooj yim hauv huab cua. Raws li kev tswj hwm, nws yog ua los ntawm kev siv lub tshuab kho qhov muag. Laser vuam yog nqa tawm nyob rau hauv ib tug ncaj ntau ntau yam ntawm hom, thiab qhov no muab ib tug high-kev ua tau zoo txheej txheem rau kev koom nrog txhua yam ntaub ntawv, lub thickness ntawm uas pib los ntawm ob peb micrometers thiab mus txog ob peb kaum millimeters. Txawm hais tias tus txheej txheem no nyuaj heev thiab tseem tsis muaj cov qauv theoretical universal uas tuaj yeem piav qhia nws tag nrho, nws tau siv dav hauv kev xyaum, thiab yog vim li cas.}

Dab tsi yog qhov zoo ntawm laser vuam ntawm cov hlau

Qhov zoo tsis txaus ntseeg ntawm txoj kev no suav nrog cov hauv qab no:

1. Kev ua haujlwm siab ntawm cov thev naus laus zis no piv rau lwm txoj hauv kev.
2. Me me tshav kub-mob cheeb tsam txwv los ntawm lub laser txoj kab uas hla ib leeg. Qhov no tso cai rau koj kom tau txais kev siv thev naus laus zis ntau dua thiab muaj zog ntawm kev sib txuas.
3. Yooj yim ntawm kev khiav lag luam thiab muaj peev xwm hloov qhov kev ua haujlwm.
4. Sustainability. Lub tshuab laser vuam niaj hnub no tshem tawm qhov xav tau ntawm cov khoom siv vuam siv thiab cov fluxes.
5. Muaj peev xwm sib koom ua ke ntawm cov hlau tsis sib xws.
6. Nws feem ntau ua tau kom tsis txhob siv cov khoom siv.
7. Kevwelding nyob rau hauv qhov chaw nyuaj mus cuag.

Rau qhov vuam ntawm cov hlau, cov roj av thiab cov khoom siv lub xeev lasers yog siv, ob qho tib si txuas ntxiv thiab sib cuam tshuam. Daim ntawv thov ntawm cov cuab yeej piav qhia ncaj qha nyob ntawm lub peev xwm ntawm kev teeb tsa. Yog li, lasers, uas nws lub zog nyob rau hauv thaj tsam ntawm 100-500 W, tau ntev tau siv rau vuam cov khoom me me, piv txwv li, cov khoom siv hluav taws xob lossis cov khoom siv kho mob. Thiab cov cav tov muaj peev xwm ua kom muaj zog ntau dua (hauv kilowatt ntau) feem ntau siv nrog cov neeg hlau thiab fiber ntau optics. Lawv yuav luag indispensable nyob rau hauv automotive, mechanical engineering, shipbuilding thiab lwm yam lag luam.