Piv nrog rau cov tshuaj oxyacetylene, ntshav tej tshuab, laser tej ceev, kerf nqaim, cuam tshuam dab tsi thaum tshav kub kub zoo noj me me zoo ntsug, tej ntug, tej ntug yog du, thiab muaj ntau yam ntaub ntawv uas yuav ua kom laser ntuag, xws li cov steel stainless hlau, alloy hlau, ntoo rauv, yas, roj hmab, ntaub, quartz, ceramic, khob, composites, thiab lwm yam. Nrog rau txoj kev laag luam huv thiab cov kev loj hlob sai heev ntawm Water, laser tej tshuab tau lug siv cuab yeej hardware automotive, txhua yam, hluav taws xob, thiab hluav taws xob tom teb. Xyoo tsis ntev los no, siv tej tshuab laser yog teem rau ntawm ib tus nqi unprecedented, yog growingat ib tus nqi ntawm 15% ~ 20% hauv ib xyoos. Txij thaum 1985, thiab kev loj hlob ntawm ib xyoo tus nqi kwv yees li ntawm 25%. Thaum nimno, tus laser tej tshuab hauv lub teb chaws Suav qib tagnrho comparedwith txawm lub teb chaws li, yog ib yam me me ntawm, thiab laser tej tshuab hauv txoj kev lag luam muaj sab prospects thiab cov daim ntawv loj loj.
Laser tej tshuab in the process of tej, teem los ntawm ib tug lens ntawm lub taub hau txiav mus rau ib tug kub siab me me, ua kom pom tseeb hwj chim siab ceev, nrog rau tej headis tsau rau lub z axis beams. Lub sij hawm no, tus nqaj input far ntau tshaj cov khoom reflecting, ntawm conduction thiab diffusion cov cua kub, sai ncu rhaub kom tus kub melting thiab vaporization ntawm cov ntaub ntawv rau lawv xwb, ib tug airstream los ntawm tog coaxial los tsis-concentric high-speed yuav yaj thiab yaj ua pa cov khoom tawm tej qhov yuav ua. Tus kub siab thiab cov lus ntawm qhov khoom, lub dav ntawm txoj kev ua ib tug nqaim kerf nruam, rau qhov tus kwv tij tej khoom tawg yooj yim.
Thaum nimno, lub laser tej tshuab yog siv cov kho qhov muag ib sab ya opticalsystem. Tawm txim liab ntawm lub laser nqaj reflector 1, 2, 3 kom tej taub hau rau ntawm cov lens uas focusing, focusing rau ntawm daim ntaub deg ntawv qhov chaw. Paab lo ntsiab muag 1 tas rau lub fuselage tseem; txoj kab teeb ci reflectors x 2 nrog rau cov nqaj zog yuav zog; reflectors z axis 3 thiab y rau qhov z ncej zog no. Yog nws yooj yim pom txog ntawm daim duab, in the process of tej, ua nqaj-tse x zog, ib feem ntawm y rau qhov z axis no, qhov ntev ntawm ib lub teeb txog kev hloov.
Thaum nimno, tus neeg peg xeem laser generator vim muaj nqi yam, tawm ntawm txoj kab teeb ci laser muaj ib cov teeb divergence, "lub khob hliav qab zoo li tus". Thaum lub "lub khob hliav qab" nyob rau hauv heightchanges (tshaj rau cov kev kho qhov muag kom txog tej lub tshuab laser), lub lens nto lub raj nplaim teeb cross-sectional loj hloov. Tsis tas li, qhov yoj xwm ntawm lub teeb, kom txoj kab teeb ci rau inevitable phenomenon ntawm diffraction, diffraction propagation rau lub laterally sau, phenomenon nyob rau hauv tag nrho kho qhov muag txaus, seb puas thetheoretical txwv ntawm cov tshuab ntawd tej kev ua tau zoo. Vim Gaussian beamis "lub khob hliav qab zoo li tus" diffraction ntawm lub teeb nthwv dej thiab, thaum uas qhov kev kho qhov muag kom hloov, sawv ntawm lub lens cov nqaj txoj kab uas hla hloov, no kom pom tseeb cancause hloov qhov luaj li cas thiab qhov tob ntawm kom pom tseeb, tab sis muaj me ntxim rau ua kom pom tseeb. Yog qhov ua kom pom tseeb hloov qhov luaj li cas thiab qhov tob ntawm kev kub siab, nyob hauv tus txheej txheem nruam, inevitably yuav muaj kev ib feem tseem ceeb ntawm kev ua, xws li, yuav tshwm sim nyob rau hauv tej kerf dav isinconsistent, ntawm cov hwjchim txiav tib yam yuav txiav hauv yaig los yog phaj