godan verb (-mu), transitive verb
cast in a mold
Technical term for pouring molten metal into a mold to shape it. Used in manufacturing and metalworking contexts.
工場では、溶かした鉄を鋳型に鋳込んで部品を作る。
In the factory, they cast molten iron into molds to make parts.
鋳造する is a more general and formal term for casting metal, while 鋳込む specifically emphasizes the action of pouring into a mold.
Compound of 鋳 (i, 'casting') + 込む (komu, 'to put into'). The reading いこむ is a standard kun'yomi combination.