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Nyob rau hauv high-precision processing scenarios ntawm picosecond-theem laser npav tshuab, lub hauv paus, raws li cov tub ntxhais kev txhawb nqa ntawm cov khoom, nws cov khoom xaiv ncaj qha txiav txim siab qhov ruaj khov ntawm kev ua haujlwm raug. Granite thiab cam khwb cia hlau yog ob qho khoom siv rau kev tsim khoom. Kab lus no yuav ua kom muaj kev sib piv los ntawm cov khoom xws li lub cev lub cev, lub hauv paus ntsiab lus ntawm precision attenuation, thiab cov ntaub ntawv siv tswv yim, muab lub hauv paus kev tshawb fawb rau kev kho dua tshiab. cov
I. Cov Khoom Siv Khoom Sib Txawv: Lub hauv paus Logic ntawm Precision Performance
Granite yog ib lub pob zeb uas tsis muaj zog, tsim los ntawm qhov ze crystallization ntawm cov zaub mov xws li quartz thiab feldspar sab hauv. Nws yog yus muaj los ntawm ib tug ntom qauv thiab siab hardness. Nws qhov ceev yog feem ntau ntawm 2.7 thiab 3.1g / cm³, thiab nws cov coefficient ntawm thermal expansion yog tsawg heev, kwv yees li (4-8) × 10⁻⁶ / ℃, uas tuaj yeem tiv taus qhov kub thiab txias hloov ntawm qhov tseeb ntawm cov khoom siv. Tsis tas li ntawd, qhov tshwj xeeb microstructure ntawm granite endows nws nrog zoo damping kev ua tau zoo, ua kom nws sai sai nqus sab nraud vibration zog thiab txo qhov cuam tshuam ntawm kev co ntawm kev ua tiav. cov
cam khwb cia hlau, raws li cov khoom siv niaj hnub, muaj qhov ntom ntawm kwv yees li 7.86g / cm³, kuj muaj zog compressive, tab sis kub.
Tus naj npawb nthuav dav (kwv yees li 12 × 10⁻⁶ / ℃) yog 1.5-3 npaug ntawm granite. Ntxiv mus, muaj flake graphite lug nyob rau hauv cam khwb cia hlau. Thaum siv mus ntev, cov qauv no yuav ua rau muaj kev ntxhov siab, cuam tshuam rau kev ruaj ntseg ntawm cov khoom thiab tom qab ntawd ua rau poob qis hauv qhov tseeb. cov
Ii. Precision Attenuation Mechanism hauv Picosecond-theem Machining
Picosecond-theem laser ua tau zoo heev uas yuav tsum tau rau ib puag ncig stability. Ib qho me ntsis deformation ntawm cov khoom siv hauv paus yuav tau nthuav dav rau hauv qhov ua tiav. Qhov kub thiab txias, kev vibrations tsim los ntawm cov khoom siv ua haujlwm, qaug zog hauv lub sijhawm ntev, thiab lwm yam, yog txhua yam tseem ceeb uas ua rau muaj qhov tseeb attenuation. cov
Thaum qhov kub hloov pauv, qhov loj ntawm granite hloov me ntsis vim nws cov coefficient tsawg ntawm thermal expansion. Qhov loj thermal expansion coefficient ntawm cam khwb cia hlau yuav ua rau lub hauv paus mus rau deformation uas yog ib qho nyuaj rau nrhiav tau ntawm qhov muag liab qab. Qhov kev deformation no yuav cuam tshuam ncaj qha rau kev ruaj ntseg ntawm txoj kev laser kho qhov muag thiab ua rau lub cim taw qhia hloov. Nyob rau hauv cov nqe lus ntawm kev co, lub siab damping yam ntxwv ntawm granite yuav attenuate 100Hz kev co nyob rau hauv 0.12 vib nas this, thaum cam khwb cia hlau yuav tsum tau 0.9 vib nas this. Nyob rau hauv high-frequency vibration tej yam kev mob, kev ua kom raug ntawm cov cuab yeej nrog cam khwb cia hlau bases yog ntau yooj yim rau fluctuations. cov
Iii. Kev sib piv ntawm Precision Attenuation Data
Raws li cov kev ntsuam xyuas ntawm cov kws tshaj lij, thaum lub sij hawm tas li 8-teev picosecond laser marking lag luam, lub attenuation ntawm XY-axis positioning raug ntawm cov cuab yeej nrog granite puag yog nyob rau hauv ± 0.5μm. Lub precision attenuation ntawm cov khoom siv cam khwb cia hlau ncav cuag ± 3μm, nrog qhov sib txawv tseem ceeb. Nyob rau hauv ib puag ncig simulated nrog qhov kub thiab txias hloov ntawm 5 ℃, thermal deformation yuam kev ntawm cov khoom siv hauv granite tsuas yog + 0.8μm, thaum cov khoom siv cam khwb cia hlau yog siab li + 12μm. cov
Tsis tas li ntawd, los ntawm qhov kev xav ntawm kev siv mus sij hawm ntev, qhov kev txiav txim siab tsis raug ntawm granite hauv paus tsuas yog 0.03%, thaum qhov kev txiav txim siab ntawm cov hlau cam khwb cia yog siab li 0.5% vim muaj teeb meem kev ruaj ntseg. Cov ntaub ntawv no qhia tau hais tias nyob rau hauv high-precision qhov yuav tsum tau ntawm picosecond-theem ua, lub stability kom zoo dua ntawm granite puag yog qhov tseem ceeb. cov
Iv. Txhim kho cov lus qhia thiab kev siv tswv yim
Rau cov lag luam uas nrhiav kev ua tiav qhov kawg, kev txhim kho cov hlau cam khwb cia rau hauv lub hauv paus granite yog ib txoj hauv kev zoo los txhim kho kev ua haujlwm ntawm cov khoom siv. Thaum lub sij hawm hloov kho cov txheej txheem, yuav tsum tau them nyiaj mloog mus rau qhov tseeb ntawm cov granite puag los xyuas kom meej tias cov nto flatness raws li tus tsim yuav tsum tau. Nyob rau tib lub sijhawm, ua ke nrog cov cuab yeej pabcuam xws li huab cua flotation kev co cais qhov system, kev tiv thaiv kev vibration ntawm cov cuab yeej tuaj yeem ua tau zoo ntxiv. cov
Tam sim no, nyob rau hauv kev lag luam xws li semiconductor nti manufacturing thiab precision kho qhov muag tivthaiv ua, laser npav tshuab nrog granite bases tau dav saws, zoo txhim khu cov khoom yield thiab ntau lawm efficiency. Piv txwv li, tom qab qee qhov chaw tsim khoom kho qhov muag tau hloov kho cov khoom siv hlau cam khwb cia, cov khoom lag luam raug tsim nyog tau nce los ntawm 82% mus rau 97%, thiab cov khoom siv tau zoo dua qub. cov
Nyob rau hauv xaus, nyob rau hauv lub hauv paus txawj tej yam ntxiv picosecond-theem laser npav tshuab, granite, nrog nws zoo thermal stability, siab damping kev ua tau zoo thiab lub sij hawm ntev precision tuav peev xwm, tau dhau los ua ib qho kev xaiv zoo tshaj plaws rau cam khwb cia hlau. Cov lag luam tuaj yeem xaiv cov ntaub ntawv tsim nyog raws li lawv tus kheej cov kev xav tau thiab kev siv nyiaj txiag kom ua tiav kev txhim kho kev ua tau zoo ntawm cov cuab yeej siv.
Post lub sij hawm: May-19-2025