Choj cmm (ua haujlwm sib txuas tes ntsuas) yog cov qauv kev ntsuas siab uas tau ua raws li peb lub ntsej muag ethogonal los ntsuas qhov ntev ntawm ib qho khoom. Txhawm rau kom tau qhov tseeb ntawm kev ntsuas, cov khoom siv los tsim cov CMM cov khoom sib dhos ua lub luag haujlwm tseem ceeb. Ib qho khoom siv no yog granite. Hauv tsab xov xwm no, peb yuav tham txog qhov cuam tshuam tshwj xeeb ntawm cov khoom siv granite ntawm qhov tseeb ntawm tus choj cmm.
Granite yog cov khoom siv ntuj ntuj uas muaj cov xeeb ceem tshwj xeeb uas ua rau nws cov khoom zoo tshaj plaws rau cov choj CMM sibt. Nws yog tuab, muaj zog, thiab muaj cov khoom ruaj khov zoo. Cov khoom siv cia cov khoom sib txawv, thermal hloov, thiab lwm qhov kev ntxhov siab ib puag ncig uas tuaj yeem cuam tshuam qhov tseeb ntawm kev ntsuas.
Ob peb cov ntaub ntawv granite yog siv hauv kev tsim kho ntawm tus choj CMM, suav nrog dub, xim paj yeeb, thiab granite grey. Txawm li cas los xij, dub granite yog cov khoom siv feem ntau yog cov khoom siv feem ntau vim yog nws cov tuab tuab thiab tsis muaj zog thiab cov khoom siv hluav taws xob tsis txaus.
Qhov kev cuam tshuam tshwj xeeb ntawm cov pob zeb granite ntawm qhov tseeb ntawm tus choj CMM tuaj yeem suav cov ntsiab lus raws li hauv qab no:
1. Cov khoom ruaj khov: cov cheebtsam granite muab cov khoom siv tau zoo heev uas ua kom pom tseeb thiab rov qab siv dua. Qhov ruaj khov ntawm cov khoom tso cai rau cov cmm los tswj hwm nws txoj haujlwm thiab kev qhia paub yam tsis muaj kev hloov ib puag ncig thiab kev co thiab kev co.
2. Quav: Granite yog cov khoom tawv tawv uas tuaj yeem tiv taus khoov thiab sib ntswg rog. Lub ntsws ntawm cov ntaub ntawv tshem tawm deflection, uas yog qhov khoov ntawm cmm cov khoom siv hauv qab thauj. Cov cuab yeej no kom ntseeg tau tias lub txaj CMM nyob twj ywm rau cov xim sib xyaw ua ke, muab kev ntsuas kom raug thiab xwm yeem.
3. Damping Cov Khoom: Granite muaj cov khoom siv damping zoo heev uas txo lub zog. Cov cuab yeej no kom ntseeg tau tias cov kev co nqus ib qho kev co los ntawm kev txav los ntawm kev txav ntawm cov kev sim ua, ua rau muaj kev ntsuas zoo thiab raug.
4. Tsawg thermal expansion coefficient: granite muaj qhov tsis tshua muaj cua sov nthuav tawm cov coefficient piv rau lwm cov ntaub ntawv xws li txhuas thiab hlau. Qhov kev sib tw tsawg ntawm cov coefficent kom cov CMM tseem muaj qhov txawv txav ntawm ntau qhov kub, muab cov kev ntsuas kom zoo ib yam thiab raug.
5. Durability: Granite yog cov khoom siv ruaj uas tuaj yeem tiv thaiv hnav thiab kua muag los ntawm kev siv tsis tu ncua. Lub durability ntawm cov khoom kom ntseeg tau tias cov khoom sib xyaw cmm tuaj yeem ntev, ua kom muaj kev ntseeg tau thiab qhov tseeb ntawm kev ntsuas.
Hauv kev xaus, kev siv cov khoom siv granite hauv choj CMM muaj qhov cuam tshuam tseem ceeb rau qhov tseeb ntawm kev ntsuas. Cov khoom siv tau ruaj khov, txhav, damping cov khoom, tsis muaj zog kom paub tseeb tias kev ntsuas cmm tuaj yeem muab cov kev ntsuas raug thiab rov qab ua dua. Yog li ntawd, xaiv tus choj CMM nrog cov khoom siv ntse yog cov kev lag luam kom muaj txiaj ntsig zoo rau cov tuam txhab uas yuav tsum muaj cov kev ntsuas kom haum thiab raug rau hauv lawv cov txheej txheem ntau lawm.
Lub Sijhawm Post: Apr-16-2024