Kuponyera thovu kotayika ndi gulu laling'ono la mchenga lomwe limagwiritsa ntchito thandizo la mchenga wouma kupanga zisankho. Kuponyedwa kwa thovu kotayika kumatanthawuza mbali zoponyera zomwe zimapangidwa ndi njira yotayika ya thovu. Zitsulo zachitsulo ndi zopanda chitsulo, kuphatikizapo chitsulo chotuwira, chitsulo chopopera, chitsulo chosungunuka, chitsulo cha carbon, chitsulo cha alloy ndi ma aluminiyamu amatha kuponyedwa ndi kutaya thovu.Kutaya Chithovu Chotayika, LFC mwachidule, yotchedwanso Full Mold Casting, ndi mtundu wa Evaporative Pattern Casting (EPC) yokhala ndi mchenga wouma. EPC nthawi zina imakhala yaifupi ya Expendable Pattern Casting chifukwa mawonekedwe a thovu otayika atha kugwiritsidwa ntchito kamodzi kokha. Mapangidwe a thovu akamalizidwa ndi makina apadera, ndiye kuti mapepala apulasitiki opangidwa ndi thovu amakutidwa ndi zokutira zokanira kuti apange chipolopolo cholimba kuti chipirire chitsulo chosungunuka. Mapangidwe a thovu okhala ndi zipolopolo amayikidwa mu bokosi la mchenga, ndikudzaza ndi mchenga wouma kuzungulira iwo. Pakutsanulira, chitsulo chosungunula chotentha kwambiri chimapangitsa chithovu kukhala pyrolyzed ndi "kuchoka" ndipo chimakhala chotuluka pamapangidwewo, ndipo pamapeto pake zomaliza zofunidwa zimapezedwa.
