Nto roughness feem ntau yog nyob ntawm cov txheej txheem machining thiab lwm yam, xws li kev sib txhuam ntawm cov cuab yeej thiab qhov chaw ntawm qhov chaw thaum lub sij hawm machining, cov yas deformation ntawm cov hlau saum npoo thaum cov chips raug sib cais, thiab cov kev vibration siab hauv machining. qhov system. Qhov tob, qhov ntom ntom, cov duab thiab kev ntxhib los mos ntawm cov cim ntawm qhov chaw kuj sib txawv nyob ntawm cov txheej txheem machining thiab aluminium alloy.
Feem ntau hais lus, txo tus nqi ntawm qhov roughness yuav txhim kho qhov kev sib dhos zoo ntawm ib feem, txo qhov hnav thiab ua kom lub neej ntev, tab sis kuj nce tus nqi ntawm cov khoom. Yog li ntawd, txhawm rau txhawm rau xaiv tus nqi ntawm qhov roughness, ua ntej ua cov magnesium-aluminium alloy qhov chaw, nws yog ib qho tsim nyog yuav tsum tau ua kom paub meej lub luag haujlwm ntawm magnesium-aluminium alloy qhov chaw hauv ib qho kev lag luam tshwj xeeb los txiav txim siab xaiv qhov roughness qhov tseem ceeb.
(1) Tus nqi roughness ntawm qhov chaw ua hauj lwm yog tsawg dua qhov roughness tus nqi ntawm qhov tsis ua hauj lwm nto.
(2) Tus nqi roughness ntawm qhov kev sib txhuam yog me dua li ntawm qhov tsis sib txhuam. Qhov siab dua qhov kev sib txhuam ceev ntawm qhov kev sib txhuam ntawm qhov chaw, qhov siab dua ntawm chav tsev, thiab qhov siab dua qhov yuav tsum tau muaj rau qhov kev sib txhuam ntawm qhov sib txhuam yog ntau dua li qhov yuav tsum tau muaj tus nqi roughness rau qhov zawv zawg kev sib txhuam nto.
(3) Hais txog qhov clearance haum, qhov me me qhov haum clearance, qhov me me qhov roughness tus nqi; rau kev cuam tshuam haum, txhawm rau kom ntseeg tau tias qhov ruaj khov thiab kev ntseeg tau ntawm lub zog fastening, qhov loj dua qhov hnyav, qhov me me ntawm qhov roughness tus nqi yuav tsum tau. Tus nqi roughness yog me dua li qhov cuam tshuam haum.