Lub hauv paus ntsiab lus ntawm kev sib tsoo log thiab nws lub luag haujlwm tseem ceeb hauv kev lag luam niaj hnub
Raws li cov cuab yeej tseem ceeb ntawm kev sib tsoo, kev sib tsoo lub log ua lub luag haujlwm tsis tuaj yeem hloov pauv hauv kev tsim khoom, tsheb, aerospace thiab lwm yam haujlwm. Nws txoj hauv kev ua haujlwm yog ua raws li kev txiav txim siab ntawm cov khoom abrasive, uas tiv tauj rau saum npoo ntawm lub workpiece los ntawm kev sib hloov siab - nrawm kom ua tiav cov khoom tshem tawm thiab ua kom tiav.
Sib tsoo log yog tsim los ntawm peb qhov chaw: abrasive, binder thiab pores. Abrasive yog ib feem ntawm kev sib tsoo lub log, feem ntau yog ua los ntawm siab - cov ntaub ntawv hardness xws li corundum thiab silicon carbide, uas yog lub luag hauj lwm rau kev sib cuag ncaj qha nrog lub workpiece thiab tshem tawm cov ntaub ntawv. Lub binder bonds cov khoom abrasive rau hauv tag nrho. Common binders muaj xws li ceramics, resins thiab hlau. Sib txawv binders txiav txim siab hardness, lub zog thiab kub tsis kam ntawm lub sib tsoo log. Cov pores ua si lub luag haujlwm ntawm cov cua sov dissipation thiab nti tshem tawm, tiv thaiv cov cua sov thiab nti thaiv thaum sib tsoo, yog li txhim kho kev ua haujlwm thiab kev sib tsoo lub neej.
Lub hauv paus ntsiab lus ntawm kev sib tsoo lub log yog nyob ntawm lub zog centrifugal uas tsim los ntawm siab -kev sib hloov ceev thiab kev txiav txim siab ntawm cov khoom abrasive. Thaum lub log sib tsoo tig ntawm qhov nrawm ntawm ntau txhiab tus kiv puag ncig ib feeb, cov khoom abrasive ncav cuag sab nraud raws li qhov kev txiav txim ntawm centrifugal quab yuam los ua ib qho kev txiav ntug. Thaum lub workpiece hu rau lub log sib tsoo, cov khoom abrasive tshem tawm cov khoom los ntawm micro- txiav, qhab nia thiab extrusion, thaum lub qhov hws pab tawm cov chips thiab tshem tawm cov cua sov kom tsis txhob kub hnyiab ntawm qhov chaw ua haujlwm.
Kev ua tau zoo ntawm kev sib tsoo log ncaj qha cuam tshuam rau kev ua haujlwm zoo thiab kev ua haujlwm zoo. Hom abrasive txiav txim siab lub peev xwm txiav thiab siv cov khoom siv ntawm lub log sib tsoo. Piv txwv li, corundum sib tsoo lub log yog tsim rau kev ua hlau, thaum silicon carbide sib tsoo lub log yog tsim nyog rau siab - cov ntaub ntawv hardness xws li cemented carbide thiab ceramics. Hom binder cuam tshuam rau hardness thiab durability ntawm lub sib tsoo log. Resin-bonded sib tsoo log yog haum rau precision sib tsoo, thaum ceramic-bonded sib tsoo log yog tsim nyog rau hnyav- lub luag hauj lwm ua.
Nrog rau kev nce qib ntawm kev lag luam thev naus laus zis, kev tsim thiab tsim khoom ntawm kev sib tsoo log kuj tseem niaj hnub tsim kho tshiab. Cov kev sib tsoo niaj hnub no tau txhim kho kev sib tsoo qhov tseeb thiab kev ua haujlwm zoo los ntawm kev ua kom zoo dua qhov loj me me, cov qauv sib khi thiab cov qauv pore. Piv txwv li, qhov tshwm sim ntawm super- nyuaj abrasive sib tsoo log (xws li pob zeb diamond thiab cubic boron nitride sib tsoo lub log) tau ua rau kev ua haujlwm siab - cov ntaub ntawv hardness ntau dua. Tsis tas li ntawd, qhov nrov ntawm kev sib tsoo cov cuab yeej siv tau kuj tau txhawb kev kho dua tshiab ntawm kev sib tsoo tshuab, ua kom nws hloov mus rau ntau txoj kev xav tau.
Raws li cov cuab yeej tseem ceeb rau kev sib tsoo, txoj hauv kev ua haujlwm thiab kev ua haujlwm zoo ntawm kev sib tsoo log yog qhov tseem ceeb rau kev tsim khoom niaj hnub no. Nrog rau kev siv cov ntaub ntawv tshiab thiab cov thev naus laus zis tshiab, kev sib tsoo lub log yuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm precision machining, pab txhim kho kev lag luam ntau lawm thiab zoo.
