Cov hlau tsis xeb 303 (SS 303) yog ib qho ntawm cov khoom ntawm cov hlau tsis xeb. SS 303 yog cov hlau tsis xeb austenitic uas tsis yog hlau nplaum thiab tsis tawv. Cov haujlwm tam sim no sim ua kom zoo dua cov txheej txheem tig CNC rau cov khoom siv SS303 xws li qhov ceev ntawm lub spindle, tus nqi pub thiab qhov tob ntawm kev txiav. Cov ntxig rau lub cev vapor deposition (PVD) raug siv. Tus nqi tshem tawm cov khoom siv (MRR) thiab qhov roughness ntawm qhov chaw (SR) raug xaiv ua cov lus teb rau cov txheej txheem ua kom zoo dua. Qauv grey-fuzzy yog tsim los ntawm cov nqi tso zis normalized thiab cov nqi qib grey relational sib xws. Kev sib xyaw ua ke zoo tshaj plaws ntawm cov chaw teeb tsa cov lus teb rau kev tau txais cov lus teb zoo dua tau txiav txim siab raws li tus nqi qib grey-fuzzy reasoning tsim. Kev tshuaj xyuas ntawm cov txheej txheem variance tau siv los txheeb xyuas qhov cuam tshuam ntawm txhua yam khoom nkag hauv kev ua tiav cov txiaj ntsig zoo tshaj plaws.