Tom qab ze li peb caug xyoo ntawm kev loj hlob,abrasive sivkev sib tsoo tau dhau los ua qhov ua tiav thiab tus kheej - muaj cov tshuab machining tshiab. Nws yog nyiam los ntawm cov neeg siv vim nws cov kev ua haujlwm siab, ntau yam kev siv, muaj zog yoog raws, tsis muaj nqi khiav lag luam, thiab kev nyab xeeb thiab kev ua haujlwm yooj yim.
Cov khoom siv ua khoom thiab daim ntawv thov teb ntawm abrasive siv sib tsoo tau dhau los ua dav. Nws tuaj yeem ua tiav yuav luag txhua yam khoom siv engineering, los ntawm cov khoom siv hauv tsev niaj hnub mus rau cov khoom siv dav hlau loj, thiab tau dhau los ua ib qho tseem ceeb ntawm kev tau txais txiaj ntsig kev lag luam tseem ceeb. Nws txoj kev loj hlob sai thiab nce kev mloog zoo li kev siv tshuab machining yog vim muaj cov yam ntxwv tseem ceeb hauv qab no:
1. Kev sib tsoo ua haujlwm
Abrasive siv sib tsoo yog cov txheej txheem sib tsoo elastic, cov txheej txheem sib xyaw ua ke uas sib xyaw ua ke, lapping, thiab polishing.
2. Abrasive Grains nyob rau hauv Abrasive Belts
Cov nplej abrasive ntawm txoj siv tawv abrasive muaj peev xwm txiav muaj zog dua li cov ntawm cov log sib tsoo, ua rau muaj kev sib tsoo zoo heev. Kev ua haujlwm siab ntawm txoj siv sib tsoo yog pom nyob rau hauv nws cov khoom siab tshem tawm tus nqi, sib tsoo piv (qhov piv ntawm qhov hnyav ntawm workpiece tshem tawm mus rau qhov hnyav hnav los ntawm abrasive), thiab siv lub tshuab cuab yeej siv hluav taws xob. Tam sim no, cov ntaub ntawv raug tshem tawm ntawm txoj siv sib tsoo rau cov hlau tau mus txog 700 mm³ / mm·s, txawm tias dhau ntawm kev tig los yog milling.
Qhov kev sib tsoo ntawm cov hlua siv abrasive tseem ceeb tshaj qhov sib tsoo lub log, ncav cuag siab li 300: 1, txawm tias 400: 1, thaum sib tsoo lub log tsuas yog ncav cuag 30: 1. Lub zog siv tus nqi ntawm txoj siv sib tsoo tshuab mus txog 80% txawm tias nyob rau theem pib ntawm nws txoj kev loj hlob, ua lwm yam cuab yeej siv tshuab; Niaj hnub no nws nce mus txog 96%, piv rau tsuas yog 52% rau kev sib tsoo log, 57% rau cov tshuab milling, thiab 65% rau tshuab dhos. Yog li ntawd, abrasive siv sib tsoo kuj yog lub zog zoo heev -txuag machining tshuab.
3. Txias sib tsoo
Abrasive siv sib tsoo ua rau siab - zoo workpiece nto. Qhov no tsis yog vim nws muaj ntau yam haujlwm xws li kev sib tsoo, lapping, thiab polishing, tab sis kuj vim hais tias, piv rau kev sib tsoo log, kev sib tsoo siv lub npe hu ua "txias sib tsoo," txhais tau hais tias qhov sib tsoo kub yog tsawg, thiab qhov chaw ua haujlwm tsis tshua muaj kev kub nyhiab lossis lwm yam tshwm sim.
4. Sib tsoo vibration
Abrasive siv kev sib tsoo tshuab muaj kev vibration qis thiab zoo stability. Vim lawv lub teeb yuag, qhov sib npaug ntawm lawv cov txheej txheem sib tsoo yog yooj yim tswj, thiab hnav ntawm tag nrho cov khoom sib hloov (xws li lub log sib tiv tauj, lub log tsav, thiab lub log nro) yog qhov tsawg, tshem tawm qhov tsis sib xws ntawm cov khoom sib tsoo.
Tsis tas li ntawd, qhov sib tsoo elastic ntawm txoj siv tau txo qis lossis nqus cov kev co thiab cuam tshuam thaum sib tsoo. Sib tsoo ceev yog ruaj khov; tsis zoo li kev sib tsoo lub log, txoj siv tsav lub log tsis txo qis hauv kev nrawm vim nws txoj kab uas hla txo nrog kev sib tsoo.
5. Nto Roughness
Qhov zoo ntawm qhov chaw ua haujlwm hauv av los ntawm kev sib tsoo siv abrasive feem ntau yog tshwm sim hauv qhov me me ntawm qhov roughness tus nqi, zoo residual stress state, thiab tsis muaj microscopic tawg los yog metallographic hloov.
Nyob rau hauv cov nqe lus ntawm nto roughness, abrasive siv sib tsoo tau tam sim no tiav Ra 0.01 hli, ncav cuag cov nyhuv ntawm daim iav sib tsoo. Rau roughness qhov tseem ceeb tshaj Ra 0.1 hli, nws yog ib qho yooj yim mus cuag. Cov kev ntxhov siab nyob rau ntawm qhov chaw ntawm cov khoom siv hauv av los ntawm kev sib tsoo yog feem ntau nyob rau hauv lub xeev kev nyuaj siab, nrog rau qhov tseem ceeb ntawm -60 txog -5 kg / mm², thaum lub log sib tsoo feem ntau tensile stress. Yog li ntawd, txoj siv sib tsoo yog qhov zoo heev rau kev ntxiv dag zog rau lub workpiece nto thiab txhim kho nws lub zog qaug zog.
