1. Kumiza
Zigawo za zitsulo za ufa zimakhala ndi porous.Impregnation, yomwe imadziwikanso kuti kulowa, imaphatikizapo kudzaza pores ndi zinthu zotsatirazi: pulasitiki, utomoni, mkuwa, mafuta, zinthu zina.Kuyika porous chigawo chopanikizika kungayambitse kutayikira, koma ngati muviika gawolo, lidzakhala losasunthika kukakamizidwa.Zida zomwe zimagwiritsidwa ntchito pazigawo zomwe zayikidwa zimadalira zinthu monga mtengo ndi ntchito.Mwachitsanzo, mkuwa ukhoza kutupa panthawi ya sintering, motero kuwononga kukhazikika kwa dimensional.Kumizidwa m'mafuta kungathe kuthira mbali zina.Chilichonse chimadalira zomwe mukufuna kupanga.
2. Electroplating
Electroplating ndi njira ina yopangira zitsulo zosapanga dzimbiri pazokongoletsa kapena zogwira ntchito - kupanga magawo owoneka bwino, kuwongolera kukana kwa dzimbiri, etc. Plating imakupatsirani mikhalidwe iyi pomwe imakulolani kuti "sangweji" zida zotsika mtengo kukhala zida zoyambirira.
3. Kuwomberedwa
Shot peening ndi njira yolumikizirana kwanuko, yomwe imatha kukweza pamwamba pazigawo pochotsa ma burrs ndikuyika kupsinjika kwapamtunda kumaderawo.Izi zitha kukhala zopindulitsa muzogwiritsa ntchito kutopa.Kuphulika kwa mchenga kumapanganso maenje ang'onoang'ono omwe amatchera mafuta pamwamba pa gawolo.Kutopa ming'alu nthawi zambiri kumayambitsidwa ndi zolakwika zapamtunda.Kuwomberedwa kungathe kuletsa kupangika kwa ming'alu ya pamwamba komanso kuchedwetsa kukula kwa ming'alu yonse.
4. Chithandizo cha nthunzi
Akagwiritsidwa ntchito pazigawo zachitsulo, mankhwala a nthunzi amapanga mawonekedwe opyapyala komanso olimba a oxide.The okusayidi wosanjikiza sachita dzimbiri;Ndi chinthu chomwe chimamatira kuchitsulo.Chigawochi chikhoza kupititsa patsogolo kukana kwa dzimbiri, kukana kupanikizika komanso kuuma