Official Answer
Answer
Shigar da 'Mandrel' ya ƙunshi kayan aiki da aka ɗora a ƙarshen ramin. Ana tura zoben a kan taf ɗin, yana faɗaɗa shi a hankali har sai ya zamewa kan sandar kuma ya shiga cikin ramin. An fi son wannan don haɗuwa da hannu. Ana amfani da kayan aikin 'Sleeve' ko 'Pusher' tare da maɗaura don aikace-aikacen sarrafa kansa ko babban ƙarfi. Mahimmin iyakacin aikin injiniya shine matsakaicin haɓaka $E_{max} = (D_{shaft} - D_{id}) / D_{id}$. Idan $E_{max}$ ya wuce iyakar kayan abu, zoben zai ɗauki saiti na dindindin kuma ba zai zauna da kyau a cikin tsagi ba. Dole ne masu ƙira su tabbatar da kusurwar taper mandrel ba ta da zurfi (yawanci $3^{\circ}$ zuwa $5^{\circ}$) don rage damuwa yayin lokacin haɓakawa.
