Zolemba zazikulu, chifukwa cha kukula kwawo kwakukulu, njira zambiri, kuzungulira kwautali, kusagwirizana pakati pa ndondomekoyi, ndi zinthu zambiri zosakhazikika, nthawi zambiri zimayambitsa kusagwirizana kwakukulu mu microstructure, kotero kuti sangathe kudutsa mayeso a katundu wamakina, kuyang'anira metallographic ndi sanali- kuzindikira zolakwika zowononga.

Chifukwa cha kulekanitsa kwa mankhwala, kuphatikizika kudzikundikira ndi zolakwika zosiyanasiyana za pore mu ingot;
Kutentha, kutentha kumasintha pang'onopang'ono, kugawa kumakhala kosagwirizana, kupsinjika kwamkati kumakhala kwakukulu, chilemacho chimakhala chochuluka;
Kutentha kwakukulu komanso nthawi yayitali, kupsinjika kwa m'deralo ndi mapindikidwe am'deralo, mawonekedwe a pulasitiki otaya, digiri ya compaction, kugawa mapindikidwe kumasiyana kwambiri;
Panthawi yozizira, kufalikira kumachedwa, kusinthika kwa minofu kumakhala kovuta ndipo kupanikizika kowonjezera kumakhala kwakukulu.
Zinthu zonse zomwe tazitchulazi zitha kupangitsa kuti minofu isagwire bwino ntchito komanso kuti ikhale yosayenerera.
Njira zopititsira patsogolo kufanana kwazokopa zazikulu:
1. Pezani ukadaulo wapamwamba wosungunula kuti mupititse patsogolo luso lazitsulo lachitsulo;
2. Adopt control forging, control technology cooling, optimize process technology, and improve the technical and economic level of large forging production.