Official Answer
Answer
Haɓakar bangon tsagi yana faruwa lokacin da damuwa axial $σ_a$ da aka yi amfani da shi ta zoben riƙewa ya wuce ƙarfin amfanin gona $σ_y$ na matsuguni ko kayan shaft. Wannan damuwa shine $σ_a = \frac{P}{\pi \cdot D \cdot d}$. Yayin da bango ya haihu, yana haifar da tasirin 'ramp'. Ƙarƙashin lodin keken keke, zoben yana 'tafiya' sama da wannan ramin har sai ya share tsagi. Wannan shine 'masifa' saboda sau da yawa ba a yi gargadi ba kafin a fito da bangaren. A cikin gidaje na aluminum (misali, 6061-T6), wannan gazawar gama gari ce. Gyaran shine a yi amfani da ƙarfe 'Groove Insert' ko don ƙara zurfin tsagi $d$ don rage damuwa, muddin sandar zata iya ɗaukar ƙarin $ K_t$.
