Nanosecond Laser, Picosecond Laser, Femtosecond Laser, Koj puas tuaj yeem qhia qhov txawv?

Peb tsis paub nroglaser ua, tab sis koj tuaj yeem hnov ​​​​nanosecond laser, picosecond laser, femtosecond laser, thiab lwm yam, koj puas paub qhov txawv?

Cia peb xam seb lub sij hawm hloov dua siab tshiab ua ntej

1ms (milliseconds)=0.001 vib nas this =10-3 vib nas this

1μs (microsecond)=0 000001=10-6 vib nas this

1ns (nanosecond)=0.0000000001 vib nas this =10-9 vib nas this

1ps (picosecond)=0.0000000000001 vib nas this =10-12 vib nas this

1fs (femtosecond)=0.000000000000001 vib nas this =10-15 vib nas this

Los ntawm kev txheeb xyuas lub sijhawm ntawm lub sijhawm, peb paub tias femtosecond laser yog ib qho kev ua haujlwm luv luv ntawm cov mem tes laser. Hauv kaum xyoo dhau los, ultra-luv mem tes laser ua tshuab tau ua tiav sai.

Ⅰ. Qhov tseem ceeb ntawm ultra-luv mem tes laser

Muaj ntev tau sim siv lasers rau micromachining. Txawm li cas los xij, vim qhov ntev mem tes dav thiab qis laser siv ntawm lub laser tshwm sim los ntawm cov khoom melting thiab nruam evaporation, txawm hais tias lub laser beam tuaj yeem tsom mus rau qhov chaw me me, qhov thermal cuam tshuam ntawm cov khoom tseem loj heev, txwv qhov raug. ntawm kev ua. Tsuas yog los ntawm kev txo cov nyhuv thermal tuaj yeem ua kom zoo dua qub.

Thaum lub sij hawm laser mem tes yog siv rau cov khoom nyob rau hauv qhov kev txiav txim ntawm picoseconds, cov nyhuv ua yuav hloov ho. Raws li lub zog pulse nce siab, lub zog siab ceev yog txaus los strip cov electrons sab nraud. Vim lub sij hawm luv luv, lub laser cuam tshuam nrog cov khoom siv, cov ions yog ablated los ntawm qhov chaw ntawm cov khoom ua ntej hloov lub zog mus rau cov khoom nyob ib puag ncig, thiab yuav tsis coj thermal cuam tshuam rau cov khoom nyob ib puag ncig, yog li nws tseem hu ua "txias. kev ua". Nrog rau qhov zoo ntawm kev ua haujlwm txias, luv luv thiab ultra-luv mem tes lasers tau nkag mus rau cov ntawv thov kev lag luam.

Ⅱ. Laser ua: ntev mem tes VS ultra-luv mem tes

Ultra-luv luv mem tes ua lub zog yog txhaj sai heev rau hauv thaj chaw me me ntawm kev ua, thiab lub zog ceev ceev ceev ceev hloov pauv hom kev nqus hluav taws xob thiab txav mus los, zam kev cuam tshuam ntawm laser linear absorption, hloov hluav taws xob, thiab diffusion, thiab hauv paus. hloov cov kev sib cuam tshuam mechanism ntawm laser thiab teeb meem.

Ⅲ.Qhov kev siv dav ntawm kev ua laser

Laser ua muaj xws li high-power txiav thiab vuam; Micro-machining drilling, npav, txiav, texturing, stripping, cais, thiab lwm yam., Lub ntsiab siv ntawm ntau yam laser ua txhais tau tias:

1. Laum qhov

Hauv kev tsim hluav taws xob hauv Circuit Court, tib neeg pib siv ceramic substrates es tsis txhob siv cov yas substrates kom ua tau zoo dua thermal conductivity. Txhawm rau txuas cov khoom siv hluav taws xob, feem ntau nws yog qhov tsim nyog yuav tsum tau laum txog li pua pua txhiab qhov me me hauv lub rooj tsavxwm. Yog li ntawd nws yog ib qho tseem ceeb los xyuas kom meej tias qhov kev ruaj ntseg ntawm lub substrate tsis cuam tshuam los ntawm lub tshav kub input thaum lub sij hawm drilling txheej txheem, thiab picosecond laser yog cov cuab yeej zoo tshaj plaws rau daim ntawv thov no.

Lub picosecond laser tuaj yeem ua tiav qhov machining ntawm lub qhov los ntawm percussion drilling thiab xyuas kom meej qhov sib xws ntawm lub qhov. Ntxiv nrog rau cov rooj sib tham hauv Circuit Court, Picosecond lasers kuj tseem tuaj yeem ua tau zoo drilling ntawm cov ntaub ntawv xws li yas zaj duab xis, semiconductors, hlau zaj duab xis, thiab sapphires.

100μm stainless hlau ntawv, drilled, 3.3ns vs 200fs, 10, 000 pulses, ze ntawm qhov pib ablation:

2. Kab thiab txiav

Cov kab tuaj yeem tsim los ntawm superimposing laser pulses hauv kev soj ntsuam. Nws feem ntau yuav siv sij hawm ntau ntawm kev soj ntsuam kom nkag mus tob rau hauv cov ceramic kom txog rau thaum qhov tob ntawm txoj kab mus txog 1/6 ntawm lub thickness ntawm cov khoom. Tom qab ntawd tus kheej modules raug cais los ntawm cov ceramic substrate raws cov notches. Txoj kev sib cais no yog hu ua cim.

Lwm txoj kev sib cais yog siv ultra-luv mem tes laser ablation txiav, tseem hu ua ablation txiav. Lub laser ablates cov khoom, tshem tawm kom txog thaum nws raug txiav. Qhov kom zoo dua ntawm cov txheej txheem no yog tias muaj kev hloov pauv ntau dua hauv cov duab thiab qhov loj ntawm lub tshuab qhov. Tag nrho cov txheej txheem txheej txheem tuaj yeem ua tiav nrog picosecond laser.

Cov teebmeem sib txawv ntawm picosecond laser thiab nanosecond laser ntawm cov khoom siv polycarbonate.

3. Kab ablation (tshem tawm ntawm txheej)

Lwm daim ntawv thov feem ntau pom zoo li micromachining yog qhov tseeb tshem tawm cov txheej txheem yam tsis muaj kev puas tsuaj lossis me ntsis ua rau cov khoom siv hauv paus. Ablation tuaj yeem yog kab ob peb micrometers dav lossis thaj tsam loj ntawm kev tshem tawm ob peb square centimeters.

Vim tias lub thickness ntawm txheej yog feem ntau tsawg dua qhov dav ntawm lub ablation, lub tshav kub tsis tuaj yeem ua rau sab. Yog li ntawd, laser pulses ntawm nanosecond dav siv tau.

Kev sib xyaw ua ke ntawm lub zog nruab nrab nruab nrab ntawm lub zog laser, square lossis duab plaub qhov sib txuas fiber ntau, thiab lub teeb ci ntsa iab sab saum toj, cov thev naus laus zis no ua rau laser nto ablation tuaj yeem siv rau hauv kev lag luam. Piv txwv li, TrumPF TruMicro 7060 laser yog siv los tshem tawm cov txheej ntawm cov iav ntawm nyias zaj duab xis hnub ci cell. Tib lub laser kuj tseem siv tau rau hauv kev lag luam automotive kom tshem tawm cov txheej txheem corrosive hauv kev npaj rau kev vuam tom ntej.

4. Nto qauv

Kev tsim kho tuaj yeem hloov lub cev lub cev ntawm cov khoom nto. Raws li cov nyhuv lotus, hydrophobic nto qauv tso cai rau dej ntws tawm ntawm qhov chaw. Cov cuab yeej no tuaj yeem ua tiav los ntawm kev tsim cov qauv submicron rau saum npoo nrog ultrashort pulsed lasers, thiab cov qauv tsim tuaj yeem tswj tau meej los ntawm kev hloov cov laser tsis.

Cov teebmeem tsis zoo, xws li cov chaw hydrophilic, kuj tuaj yeem ua tiav, thiab micromachining tuaj yeem tsim cov qauv loj dua. Cov txheej txheem no tuaj yeem siv rau hauv cov roj tso tsheb hlau luam hauv cov cav los tsim cov microstructures uas txo qhov hnav, lossis tsim cov hlau nto kom ua tiav vuam nrog cov yas.

5. Engraving molding

Sculpting yog tsim cov duab peb sab los ntawm cov ntaub ntawv ablating. Txawm hais tias qhov loj ntawm qhov ablation tuaj yeem dhau qhov kev ua haujlwm ntawm qhov ib txwm hu ua micromachining, qhov tseeb yuav tsum tau ua rau nws muab faib rau hauv qeb ntawm kev siv laser. Picosecond lasers tuaj yeem siv los ua cov txheej txheem polycrystalline pob zeb diamond cov npoo hauv cov tshuab milling.

Lub laser yog cov cuab yeej zoo tshaj plaws rau kev ua cov pob zeb diamond polycrystalline, uas yog cov ntaub ntawv nyuaj heev uas tuaj yeem siv los ua milling cutter hniav. Kev siv engraving molding tshuab los ua cov nti grooves thiab cov hniav ntawm cov milling cutter, nyob rau hauv cov ntaub ntawv no, cov txiaj ntsig ntawm laser tsis sib cuag thiab siab machining raug.

Micromachining muaj ib daim ntawv thov dav heev, thiab ntau thiab ntau yam khoom siv niaj hnub tau nkag mus rau peb qhov kev pom los ntawm laser micromachining.

Laser ua yog ib qho kev tsis sib cuag, nrog cov txheej txheem ua raws li tsawg dua, kev tswj tau zoo, kev sib koom ua ke yooj yim, kev ua haujlwm siab, cov khoom siv tsawg, tsis muaj kuab paug ib puag ncig, thiab lwm yam zoo, tau siv dav hauv tsheb, hluav taws xob, khoom siv hluav taws xob. , aviation, metallurgy, thiab machinery manufacturing industries. Nws ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom zoo, kev ua haujlwm ntawm kev ua haujlwm, automation, thiab txo cov khoom siv.

Cov ntaub ntawv tiv tauj:

Yog tias koj muaj lus nug, thov hu rau peb. Txawm peb cov neeg muas zaub nyob qhov twg thiab peb cov kev xav tau yog dab tsi, peb yuav ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom zoo, tus nqi qis, thiab kev pabcuam zoo tshaj plaws.