Abin da ake kira jujjuyawar mutuwa yana nufin ba za a iya gyarawa ba don dawo da aikin da ake amfani da shi na lalacewa, wato, lalacewa ko guntun mutuwar ƙirƙira da aka saba faɗi. Domin taka a forming mutu jam'iyya na aikin na forgings, shi kai tsaye a lamba tare da zafi billet, kai da aiki na turu irin zafi load, da kuma ƙirƙira kayan aiki shafi a karkashin high makamashi tasiri load da blank karfe kwarara scouring da embellish da rawar da zamewa wakili da sauran muhalli kafofin watsa labarai, a cikin mold na ƙarfe da sarrafa ingancin bayani dalla-dalla da kuma al'ada aiki yanayi, forging mutu a cikin lalacewa ta hanyar lalacewa ko lalacewa, saboda haka ya mutu a cikin lalacewa. galibi fayil ɗin mold yanzu ba zai iya gyara hanyar da za a dawo da samar da ingantattun damar ƙirƙira.