CNC machining qhov chaw yog cov hlau ua haujlwm ua los ntawm CNC machining txheej txheem siv raw cov ntaub ntawv ntawm cov hlau cam khwb cia hlau.Ductile cam khwb cia hlau tsis yog ib qib ntawm cov cam khwb cia hlau, tab sis ib pawg ntawm cov cam khwb cia hlau, kuj hu ua nodular hlau los yog spheroidal graphite cam khwb cia hlau (SG cam khwb cia hlau). Nodular cam khwb cia hlau tau txais nodular graphite los ntawm spheroidization thiab inoculation kev kho mob, uas zoo txhim kho cov neeg kho tshuab zog ntawm cov cam khwb cia hlau, tshwj xeeb tshaj yog cov yas thiab toughness, thiaj li yuav tau txais lub zog siab dua carbon steel.Ductile hlau muaj ntau yam khoom siv los ntawm kev tswj cov microstructure. Lub ntsiab lus txhais cov yam ntxwv ntawm pawg ntawm cov ntaub ntawv no yog cov duab ntawm graphite. Hauv cov hlau nplaum, cov graphite yog nyob rau hauv daim ntawv ntawm nodules es tsis yog flakes li nws yog nyob rau hauv grey hlau. Lub ntsej muag zoo nkauj ntawm cov flakes ntawm graphite tsim cov ntsiab lus kev ntxhov siab nyob rau hauv cov hlau matrix, thaum cov duab sib npaug ntawm cov nodules tsawg dua, yog li inhibiting kev tsim cov kab nrib pleb thiab muab kev txhim kho.ductility. Qhov no yog vim li cas peb hu lawv ductile cam khwb cia hlau.