Muaj ob qhov kev siv yooj yim ntawmabrasive sivsib tsoo, uas yog lub teeb sib tsoo thiab hnyav sib tsoo. Lub teeb sib tsoo tshem tawm cov khoom me me thiab tsuas tuaj yeem ua lub luag haujlwm hauv qhov chaw ua ntej lossis ua haujlwm tiav, xws li polishing, deburring, thiab lwm yam. Txoj siv sib tsoo nrawm dua thaum ua lub teeb sib tsoo. Kev sib tsoo hnyav plays lub luag haujlwm hauv kev ntxhib thiab zoo machining ntawm lub workpiece. Nws qhov zoo yog siab txiav tus nqi, qis txiav kub, me me deformation ntawm lub workpiece, thiab yooj yim tswj ntawm flatness thiab nto roughness.
Kev sib cuag log sib tsoo thiab kev sib tsoo dawb yog ob txoj haujlwm tseem ceeb ntawm kev sib tsoo txoj siv tawv. Lub qub yog tsim rau kev sib tsoo ntxhib, kev sib tsoo semi-zoo thiab kev sib tsoo zoo, thaum lub tom kawg kuj yog siv rau kev sib tsoo semi-zoo thiab zoo sib tsoo, tab sis feem ntau plays lub luag haujlwm polishing.
Abrasive sivkev sib tsoo tuaj yeem txhim kho qhov tseeb ntawm machining, thiab nws siv txoj hauv kev profileing thiab qhov ntev-ntev machining txoj kev tswj. Profiling tswj siv tus qauv tsim kom tsim nyog tswj cov kev ceev ceev hauv qhov kev taw qhia tangential thaum sib tsoo nyob rau hauv ib qho kev sib tsoo, kom cov workpiece tuaj yeem ua hauv av sib xws rau tus qauv qauv; Kev ua haujlwm ntev-ntev yog raws li cov kev hloov pauv ntawm qhov dav ntawm lub workpiece thiab cov nyiaj siv ua haujlwm, tsim nyog tswj cov khoom noj ceev ntawm lub workpiece, tswj cov kev sib tsoo tsis zoo rau qee qib, thiab tswj cov kev sib tsoo seem rau qee tus nqi (tsis yog. xoom).
Cov teeb meem hauv qab no yuav tsum tau them sai sai rau thaum sib tsooabrasive siv:
(1) Kev sib tsoo qhov tob Thaum siv txoj siv sib tsoo, vim qhov elasticity ntawm lub log sib cuag, qhov pub qhov tob sib txawv ntawm qhov tob tiag tiag. Qhov ratio yog 3:10.
(2) Thawj qhov kev sib tsoo ntawm qhov tshiababrasive siv. Txij li thaum txoj siv tshiab tshem tawm ntau dua li txoj siv qub, qhov kev sib tsoo thawj zaug ntawm txoj siv tshiab tsis tuaj yeem kho tau, tab sis thawj zaug pub yuav tsum tau tig los ntawm sab laug thiab sab xis ntawm lub workpiece kom tsis txhob taper hauv lub workpiece. Geometric qhov tseeb tuaj yeem txhim kho tau los ntawm kev ntsuas qhov ntev ntawm sab nraud kom paub txog lub voj voog loj tshaj plaws, qhov twg txoj siv tshiab yuav pib noj, lossis los ntawm kev sib tsoo ntau zaus.
(3) Txhawm rau txhim kho qhov roughness ntawm lub workpiece siv cov khoom sib tsoo tsis pub noj, koj tuaj yeem siv cov khoom tsis pub sib tsoo rov qab 3 mus rau 4 zaug thaum kawg ntawm kev sib tsoo zoo, thiab cov nyhuv zoo heev.
(4) Qhov nyiaj pub rau machining feem ntau yog 0.04 mus rau 0.08 mm rau kev sib tsoo siv. Thaum tus nqi nto roughness ua ntej sib tsoo yog siab dua Ra2.55m, cov nyiaj siv ua haujlwm tuaj yeem loj dua me ntsis. Tus nqi deg roughness ua ntej polishing dawb yog Ra 1.255m-RaO.635m, thiab cov nyiaj siv ua haujlwm yog 0.01-0.02mm.
Tsis tas li ntawd, vim hais tias abrasive txiav ntug ntawm txoj siv tshiab yog ntse heev thiab muaj qhov siab sib txawv, tsuas yog ib feem ntawm kev txiav ntug ua haujlwm, uas cuam tshuam rau qhov roughness ntawm lub workpiece. Yog li ntawd, txoj siv tawv abrasive yuav tsum tau muab txiav kom tag nrho cov npoo tuaj yeem ua tiav. Nws muaj ob txoj hauv kev los txiav nws:
① Muab cov hlua qub nyob ib ncig ntawm lub voj voog ntoo, tuav tus pas ntoo nrog koj txhais tes, thiab zom cov hlua tshiab uas tig rau ntawm lub log. Lub sijhawm no, lub zog yuav tsum tsim nyog;
② Hauv kev sib tsoo semi-precision thaum lub sijhawm ua haujlwm, txoj siv tawv tshiab xaiv yog siv rau kev sib tsoo ua haujlwm. Tom qab txiav ntug yog me ntsis blunted, nws yog hloov rau zaum kawg zoo sib tsoo.
