Nɛgɛko baara siratigɛ la, fɛn dilanni ye izini yɔrɔ jɔnjɔnw ye, wa u yecogo bɛ nɔ bila fɛn dilannenw ka jogoɲini na, u ka baarakɛcogo dɔnni na ani u ka suguya sɔnni na. Diɲɛ kɔnɔ fɛn dilanni wajibiyalenw bɛ ka caya ka taa a fɛ walasa ka fɛnw tiɲɛ ani ka dannaya sɔrɔ, fɛn minnu bɛ kɛ ka fɛnw labɛn, olu yecogo ɲuman ye ko nafama ye jamana kɔkan jago siratigɛ la.
Castings (bolifɛnw) cogoya bɛ ye kosɛbɛ surface (yɔrɔ) fini na, cogoya tiɲɛni, defect type (dafalen suguya) ani dimension (janya) cogoya. Surface Finish bɛ nɔ bila aesthetics la ani o kɔfɛ baarakɛcogo wajibiyalenw na castings. A ka c’a la, fɛn minnu bɛ kɛ ka fɛnw fili, olu bɛ kɛ ni fɛn caman ye minnu ka bon kosɛbɛ, i n’a fɔ casting précision walima shell casting. O fɛn suguw ka teli ka wari caman sɔrɔ jamana kɔkan jago la. Castings minnu bɛ ni yɔrɔ gɛlɛnw ye, olu bɛ se ka kɛ ni sɔgɔli walima fiyɛli wɛrɛw ye, o bɛ dɔ fara jiginɛw musaka kan.
Siginiden tiɲɛni ye fɛn ye min bɛ kɛ ka fɛnw filicogo jira. Precision castings ka kan ka tolerance wajibiyalenw gɛlɛnw dafa walasa ka ɲɔgɔn lajɛ ani ka baara kɛ. Jamana kɔkan jagokɛlaw ka yamaruyaw kɔnɔ, kiliyanw bɛ to ka wajibi jɛlenw kɛ yɔrɔ kolomaw ka danfaralanw na, i n’a fɔ tiɲɛni hakɛ min bɛ se ±0,1 mm ma. Ni fɛn dɔw bɛ ɲɔgɔn tiɲɛ walima ni u dɔgɔyara ka bɔ u la, o tɛna nɔ bila jamalajɛ dɔrɔn na, nka a bɛ se ka kɛ sababu ye fana ka kiliyanw ka segin walima ka u ɲini.
Nafaw suguya ye basigi jɔnjɔn ye walasa ka castingw jogo jateminɛ. A ɲɛda cogoya bɛ sɔrɔ tuma caman na, o ye ɲɛgɛnɛsiraw ye, cɛncɛn dingɛw, kariw ani nɛnɛw. O fiɲɛw bɛ se ka sɔrɔ fɛnw fɛ i n’a fɔ nɔgɔ dilanni, a bɔli kɛcogo walima a nɛnɛ hakɛ. A ka c’a la, jamana wɛrɛw ka jagokɛɲɔgɔnyaw bɛ fiɲɛ hakɛ minnu bɛ se ka kɛ, olu jira, i n’a fɔ jatebɔ wajibiyalenw ASTM walima ISO sariyaw kɔnɔ. Fɛn dilanbagaw ka kan k’a lajɛ ko fɛnw fililiw bɛ sariyaw dafa X-Ray Inspection walima Visual Inspection fɛ, n’o tɛ, u bɛ se ka farati sɔrɔ ka kɛɲɛ ni yamaruya tiɲɛni ye.
Dimension (janya) ɲɔgɔndan nafa ka bon kosɛbɛ jamana kɔkan jago la. Mass-Fɛn minnu bɛ dilan, olu ka kan k’a lajɛ ko fɛn kelen-kelen bɛɛ cogoya n’a hakɛw bɛ bɛn kosɛbɛ walasa ka se ka fɛnw lajɛ minnu bɛ kɛ ni otomatiki ye. Jamana kɔkan jagokɛlaw ka teli ka sɛgɛsɛgɛli kɛ k’a sɔrɔ u ma kɛ ni minɛnw ye i n’a fɔ sumani masin saba-Masini minnu bɛ kɛ ni fɛnw ye minnu bɛ se ka kɛ sababu ye ka fɛnw ka ɲininiw dafa.
Kuma surun na, castingw ka yecogo cogoya bɛ tali kɛ u ka suguya ɲɔgɔndan na ani jamana kɔkan jago ɲɛtaa hakɛ la. Fɛn dilanbagaw ka kan ka taabolo ni jogoɲini siraw ɲɛnabɔ walasa ka a jira ko castings bɛ diɲɛ sariyaw dafa u cogoya la, o la, u bɛ se ka diɲɛ kuntigiw ka dannaya sɔrɔ.
