Mgbe forgings na-ekpo ọkụ, oge obibi dị ogologo na okpomọkụ dị elu, ikuku oxygen dị na ọkụ ọkụ na ikuku oxygen na mmiri mmiri na-ejikọta ya na atom ígwè nke forgings na ihe omume nke oxidation na-akpọ oxidation. Fusible kpụrụ site ígwè oxide adhesion n'elu nke metal siri ike oxide akpụkpọ, dị ka akpụ tupu ewepụ adịghị ọcha, ga-pịa n'ime elu nke forgings, hichaa ma ọ bụ mgbe pickling, ele mmadụ anya n'ihu sag kpụrụ.akpụ elupitting, dị oke njọ mgbe ị na-emepụta nha geometry, inyefe machining, ma ọ bụ n'ihi ezughị oke ma mee akụkụ ndị nwere ihu ojii na scrap, ga-enwe mmetụta na nkenke.anwụ forgings.

Ụzọ iji gbochie oxidation bụ:
(1) belata oge ọnụnọ na okpomọkụ dị elu mgbe a na-ekpo ọkụ na-emepụta ihe, na-eme ngwa ngwa kpo oku, ma gbalịa iji usoro ọrụ nke obere ntinye na ntinye ugboro ugboro.
(2) na-edebe micro oxidation ikuku n'ime ọkụ, belata ikuku mmiri n'ime ọkụ ahụ, na-eme obere ikpo ọkụ oxidation ma ọ bụ iji chebe ọgwụgwọ mkpuchi,
(3) debe obere nrụgide dị mma n'ime ọkụ iji gbochie ikuku oyi ịbata n'ime ọkụ.
(4) mgbe anwụ forging na-ekpo ọkụ, ahịhịa, akwa nrụgide mmiri (nrụgide bụ dịkarịa ala 10Mpa) ntụmadị ma ọ bụ tinye deformation (ọ bụrụhaala na e nwere 0,05% nke structural ígwè? 0,2% nke ogo deformation) wepụ oxide ọnụ ọgụgụ.