Langai, casting ni a design galaw ai lam. Dai hta n-ga, bungli galaw ai masa hte magri arung arai ni a bungli galaw ai lam ni hte maren, masat masa galaw ai lam a geometry hte size hpe dawdan ai hta n-ga, casting alloy hte casting process a arawn alai ni a ningmu hku nna, hkrang shapraw ai lam a myit sawn sumru ai lam hpe mung myit yu ra ai, dai gaw, dan dawng ai size effect hte solidification, shrinkage, stress hte kaga manghkang ni rai nga ai, n-gun n rawng ai lam ni hpe koi gam na matu (sh) shayawm kau na matu, casting a n-gun hpe shayawm kau na matu (sh) shayawm kau na matu ra nga ai.
Lahkawng, hkam la mai ai hku galaw ai lam nga ra ai. Dai gaw, casting a hkrang masa, n-gun hte galu kaba ai lam ni hte maren, alloy a arawn alai hte galaw shapraw ai masa ni hte maren, htap htuk ai daw hte hkrang, core galaw ai ladat hpe lata la nna, casting bar, katsi ai magri, rawt jat galu kaba wa ai ladat hpe hkam kaja ai hku masat da ai. Kaja ai casting hpe kam na matu.
Masum, casting hta lang ai raw materials ni a quality. Metal charge, n-gun n-gun, wan sau, n-gun, galai shai ai, hka htung hka htung, hka htung, hka htung, nsam hte kaga arung arai ni a quality gaw, n-gun n-gun ni hpe n-gun n-jaw ai, n-gup magap, pinholes, slag inclusion, slag inclusion, slag lawm ai, nhprang arai ni zawn re ai n-gun n-gun ni hpe shabyin ya nna, hkrang shapraw ai lam a hkam kaja lam hte kata na n-gun hpe hkra machyi shangun nna, n-gun ja ai mabyin masa ni hta, casting ni hpe n-gun shayawm kau ya na re. Mali ngu na gaw, galaw sa wa ai lam hpe galaw ai lam rai nga ai, hkamja lam hte seng ai bungli galaw ai ladat ni hpe gyin shalat na matu, bungli galaw masha ni a hpaji madang hpe gram lajang na matu, galaw sa wa na ladat ni hpe hkrak hkrak galaw lu na matu re.
