Xov Xwm Txog Lub Tuam Txhab

Txoj kev txhuam cov pwm yas

Kev txhuam kom huv si

Kev txhuam hniav yog ib txoj kev txhuam hniav uas siv kev txiav thiab kev hloov pauv yas ntawm qhov chaw ntawm cov khoom kom tshem tawm cov khoom sib xyaw ua ke kom tau txais qhov chaw du. Feem ntau, cov roj pob zeb sticks, wool log, sandpaper, thiab lwm yam siv, thiab kev ua haujlwm tes yog txoj kev tseem ceeb. Cov khoom tshwj xeeb xws li qhov chaw ntawm lub cev tig tuaj yeem siv tau. Siv cov cuab yeej pab xws li turntables, kev txhuam hniav ultra-precision tuaj yeem siv rau cov neeg uas muaj qhov xav tau zoo ntawm qhov chaw. Kev txhuam hniav ultra-precision yog kev siv cov cuab yeej txhuam hniav tshwj xeeb, uas raug nias kom nruj rau ntawm qhov chaw ua tiav ntawm cov khoom ua haujlwm hauv cov kua txhuam hniav uas muaj cov txhuam hniav rau kev tig ceev ceev. Siv cov thev naus laus zis no, qhov roughness ntawm Ra0.008μm tuaj yeem ua tiav, uas yog qhov siab tshaj plaws ntawm ntau txoj kev txhuam hniav. Cov pwm lens optical feem ntau siv txoj kev no.

Kev txhuam tshuaj lom neeg

Kev txhuam tshuaj lom neeg yog ua kom qhov chaw me me ntawm cov khoom siv hauv cov tshuaj lom neeg nruab nrab yaj zoo dua li qhov concave, kom tau txais qhov chaw du. Qhov zoo tshaj plaws ntawm txoj kev no yog tias nws tsis xav tau cov cuab yeej nyuaj, tuaj yeem txhuam cov khoom ua haujlwm nrog cov duab nyuaj, thiab tuaj yeem txhuam ntau cov khoom ua haujlwm tib lub sijhawm, nrog kev ua haujlwm siab. Qhov teeb meem tseem ceeb ntawm kev txhuam tshuaj lom neeg yog kev npaj cov kua txhuam. Qhov roughness ntawm qhov chaw tau los ntawm kev txhuam tshuaj lom neeg feem ntau yog ntau 10 μm.

Kev txhuam hniav electrolytic

Lub hauv paus ntsiab lus ntawm electrolytic polishing zoo ib yam li cov tshuaj polishing, uas yog, los ntawm kev xaiv cov khoom me me ntawm qhov chaw ntawm cov khoom kom ua rau qhov chaw du. Piv nrog tshuaj polishing, cov nyhuv ntawm cathode reaction tuaj yeem tshem tawm, thiab cov nyhuv zoo dua. Cov txheej txheem electrochemical polishing yog muab faib ua ob kauj ruam: (1) Macroscopic leveling Cov khoom yaj diffuse rau hauv electrolyte, thiab qhov geometric roughness ntawm cov khoom nto txo ​​qis, Ra> 1μm. ⑵ Low-light leveling: Anode polarization, qhov ci ntsa iab ntawm qhov chaw tau zoo dua, Ra <1μm.

Kev txhuam hniav ultrasonic

Muab cov khoom ua haujlwm tso rau hauv cov tshuaj txhuam thiab muab tso ua ke hauv lub teb ultrasonic, vam khom cov nyhuv oscillation ntawm ultrasonic, yog li cov tshuaj txhuam raug sib tsoo thiab txhuam rau ntawm qhov chaw ntawm cov khoom ua haujlwm. Kev ua haujlwm ultrasonic muaj lub zog macroscopic me me thiab yuav tsis ua rau cov khoom ua haujlwm deformation, tab sis nws nyuaj rau tsim thiab teeb tsa cov cuab yeej. Kev ua ultrasonic tuaj yeem ua ke nrog cov tshuaj lom neeg lossis electrochemical. Raws li kev xeb ntawm cov kua thiab electrolysis, kev co ultrasonic yog siv los do cov kua, yog li cov khoom yaj ntawm qhov chaw ntawm cov khoom ua haujlwm raug sib cais, thiab qhov xeb lossis electrolyte ze ntawm qhov chaw yog sib xws; qhov cuam tshuam cavitation ntawm ultrasonic hauv cov kua kuj tseem tuaj yeem tiv thaiv cov txheej txheem xeb thiab pab txhawb qhov ci ntsa iab ntawm qhov chaw.

Kev txhuam dej

Kev txhuam kua siv cov kua dej ntws ceev ceev thiab cov khoom sib txhuam uas nws nqa los ntxuav qhov chaw ntawm qhov workpiece kom ua tiav lub hom phiaj ntawm kev txhuam. Cov txheej txheem siv feem ntau yog: kev ua haujlwm abrasive jet, kev ua haujlwm kua dej, kev sib tsoo hydrodynamic thiab lwm yam. Kev sib tsoo hydrodynamic yog tsav los ntawm lub siab hydraulic kom cov kua nruab nrab nqa cov khoom sib txhuam ntws rov qab thiab tawm hla qhov chaw ntawm qhov workpiece ntawm qhov ceev ceev. Cov nruab nrab feem ntau yog ua los ntawm cov tshuaj tshwj xeeb (cov tshuaj zoo li polymer) nrog kev ntws zoo hauv qab qhov siab qis dua thiab sib xyaw nrog cov khoom sib txhuam. Cov khoom sib txhuam tuaj yeem ua los ntawm hmoov silicon carbide.

Sib nqus sib tsoo thiab polishing

Kev sib nqus abrasive polishing yog siv cov hlau nplaum abrasives los tsim cov txhuam abrasive nyob rau hauv qhov kev ua ntawm lub teb sib nqus los sib tsoo cov khoom ua haujlwm. Txoj kev no muaj kev ua haujlwm zoo, zoo, yooj yim tswj cov xwm txheej ua haujlwm thiab cov xwm txheej ua haujlwm zoo. Siv cov abrasives tsim nyog, qhov roughness ntawm qhov chaw tuaj yeem ncav cuag Ra0.1μm. 2 Kev sib nqus mechanical raws li txoj kev no Kev sib nqus hais txog kev ua cov pwm yas txawv ntawm qhov kev sib nqus nto uas xav tau hauv lwm yam lag luam. Hais lus nruj me ntsis, kev sib nqus ntawm cov pwm yuav tsum hu ua kev ua daim iav. Nws tsis yog tsuas yog muaj cov kev xav tau siab rau kev sib nqus nws tus kheej, tab sis kuj muaj cov qauv siab rau qhov tiaj tiaj ntawm qhov chaw, du thiab qhov tseeb geometric. Kev sib nqus nto feem ntau tsuas yog xav tau qhov chaw ci. Tus qauv ntawm kev ua daim iav nto yog muab faib ua plaub theem: AO = Ra0.008μm, A1 = Ra0.016μm, A3 = Ra0.032μm, A4 = Ra0.063μm. Nws nyuaj rau tswj qhov tseeb geometric ntawm cov khoom vim yog cov txheej txheem xws li electrolytic polishing thiab kua polishing. Txawm li cas los xij, qhov zoo ntawm cov tshuaj polishing, ultrasonic polishing, magnetic abrasive polishing thiab lwm txoj kev tsis yog raws li qhov yuav tsum tau ua, yog li daim iav ua cov pwm precision tseem yog feem ntau yog mechanical polishing.