Wɔ dadeɛ a wɔde yɛ adwuma mu no, castings yɛ mfiridwuma mu nneɛma titire, na wɔn anim su no nya nneɛma a wɔyɛ no yiedie ho nhwehwɛmu so nkɛntɛnsoɔ tẽẽ, dwumadie a ɛwɔ mu ne gua so gye a wɔgye tom. Esiane sɛ wiase nyinaa nneɛma a wɔyɛ no pɛpɛɛpɛ na wotumi de ho to so no renya nkɔanim nti, castings a wɔde di dwuma yiye no abɛyɛ asɛm a ɛho hia wɔ amannɔne aguadi mu.
Nneɛma a wɔde gu mu no su su no da adi titiriw wɔ ɔfasu no awiei, ne nsusuwii pɛpɛɛpɛ, sintɔ su ne ne kɛse a ɛyɛ pɛpɛɛpɛ mu. Surface finish ka aesthetics ne akyiri yi processing ahwehwɛde ahorow a castings. Mpɛn pii no, castings a ɛwɔ soro no hwehwɛ sɛ wɔyɛ casting akwan a ɛyɛ nwonwa kɛse, te sɛ precision casting anaa shell casting. Mpɛn pii no, nneɛma a ɛtete saa no nya sika a ɛkɔ soro wɔ amannɔne aguadi mu. Ebia castings a ɛwɔ mmeae a ɛyɛ mmerɛw no bɛhwehwɛ sɛ wɔyam anaa wɔde petepete so foforo, na ɛma adetɔfo a wɔwɔ fam no ka yɛ kɛse.
Nsusuwii pɛpɛɛpɛyɛ yɛ ade titiriw a ɛkyerɛ sɛnea ɛte wɔ casting anim no mu biako. Ɛsɛ sɛ precision castings di dimensional tolerance ahwehwɛdeɛ a ɛyɛ katee so na ama wɔatumi ayɛ nhyiamu na wɔayɛ adwuma. Wɔ amannɔne aguadi ho ahyɛde mu no, adetɔfo taa yɛ ahwehwɛde ahorow a emu da hɔ ma afã atitiriw no afã horow a ɛtwetwe adwene, te sɛ pɛpɛɛpɛyɛ a ɛyɛ ±0.1 mm. Sɛ deformation anaasɛ shrinkage a ɛda adi pefee wɔ casting no mu a, ɛnyɛ sɛ ɛbɛka nhyiam no nko, na mmom ebetumi ama customer sanba anaasɛ nsɛm a wɔka.
Mfomso ahorow no ne ade titiriw a wogyina so bu castings no su ho atɛn. Mfomso a ɛtaa ba no bi ne pores, anhwea ntokuru, mpaapaemu ne awɔw a wɔato mu. Ebia nneɛma te sɛ nsusuwso a wɔyɛ, sɛnea wɔhwie gu anaasɛ ɛma onwini ba no na ɛde saa sintɔ ahorow yi ba. Amannɔne aguadi apam taa kyerɛ sintɔ dodow a wɔma ho kwan, te sɛ abasobɔde a wɔhwehwɛ wɔ ASTM anaa ISO gyinapɛn ahorow mu. Ɛsɛ sɛ wɔn a wɔde nneɛma ma no hwɛ hu sɛ castings no du gyinapɛn ahorow no ho denam x-ray inspection anaa visual inspection so, anyɛ saa a ebetumi ahyia asiane a ɛne sɛ wobetwa order no mu.
Dimensional consistency ho hia kɛse ma amannɔne aguadi. Ɛsɛ sɛ Mass-a wɔayɛ no hwɛ sɛ adeɛ biara a ɛbɛba ne ne kɛseɛ no hyia yie na ama wɔadi nhyiamu nhama a wɔde wɔn ankasa yɛ no ahiadeɛ ho dwuma. Amannɔne aguadi nnwumakuw taa yɛ nhwehwɛmu a wɔanhyɛ da denam nnwinnade te sɛ abiɛsa-a wɔde susuw nneɛma so de hwɛ hu sɛ nneɛma no di mfonini ahorow no ahwehwɛde ahorow so.
Sɛ yɛbɛbɔ no mua a, castings no anim a ɛda adi no ne wɔn gua so akansi ne amannɔne aguadi mu nkonimdi dodow wɔ abusuabɔ tẽẽ. Ɛsɛ sɛ wɔn a wɔde nneɛma ma no yɛ nhyehyɛe ne nhyehyɛe ahorow a ɛhwɛ nneɛma pa so yiye na ama wɔahwɛ ahu sɛ castings no du amanaman ntam gyinapɛn ahorow ho wɔ ne hwɛbea mu, na ɛnam so anya wiase nyinaa adetɔfo ahotoso.
