Machining raug yog hais txog cov degree uas qhov tseeb geometric tsis (loj, duab thiab txoj hauj lwm) ntawm ib feem tom qab machining yog nyob rau hauv txoj kab nrog rau qhov zoo tagnrho geometric tsis. Qhov txawv ntawm lawv yog hu ua machining yuam kev. Qhov loj ntawm machining yuam kev qhia txog qib ntawm machining raug. Qhov loj dua qhov yuam kev, qhov qis dua qhov tseeb ntawm machining, thiab qhov yuam kev me dua, qhov siab dua qhov tseeb ntawm machining.
Machining raug suav nrog peb yam:
1. Dimensional raug yog hais txog qhov kev sib haum xeeb ntawm qhov loj ntawm qhov ua tiav thiab qhov nruab nrab ntawm qhov kam rau ua ntawm qhov loj me;
2. Cov duab zoo yog hais txog qhov kev sib haum xeeb ntawm cov duab geometric tiag tiag ntawm qhov chaw ua tiav thiab cov duab geometric zoo tagnrho;
3. Qhov tseeb ntawm txoj hauj lwm yog hais txog qhov tseeb ntawm txoj hauj lwm thiab qhov zoo ntawm qhov chaw ntawm cov khoom tom qab ua tiav.
Vim muaj kev cuam tshuam ntawm cov txheej txheem ua, qhov loj me, cov duab thiab qhov chaw ntawm lub batch ntawm cov khoom ua tiav nyob rau hauv tib yam kev mob rau qhov tseeb thiab ua tiav cov txheej txheem ua cov khoom thiab cov xwm txheej ntau lawm yuav tsis zoo ib yam. Ib txwm muaj qee qhov kev ua haujlwm tsis raug. Nyob rau tib lub sijhawm, los ntawm qhov chaw ua haujlwm siab ntev ntawm kev ua haujlwm tag nrho, kev lag luam tsim nyog yuav tsum tau txais kev pom zoo los txhim kho cov khoom tsim tau thiab kev lag luam ntawm machining.