Official Answer
Answer
Ana shigar da zoben karkace ta hanyar jujjuya su cikin rami. Damuwa yayin fadada (don zoben waje) ko ƙanƙancewa (don zoben ciki) dole ne su kasance ƙasa da ƙarfin amfanin kayan don guje wa nakasar dindindin. Matsakaicin damuwar fiber yayin shigarwa shine $\sigma_{inst} = \frac{E imes t imes (D_g - D_f)}{D_g imes D_f}$, inda $D_g$ shine diamita na tsagi kuma $D_f$ shine diamita na kyauta. Idan $\sigma_{inst}> S_y$, zoben ba zai koma yadda yake a asali ba, wanda zai haifar da sako-sako. Don zoben Bakin Karfe 302, matsakaicin haɓakar da za a iya ba da izini yawanci ana iyakance shi zuwa $1\%$ zuwa $2\%$ na diamita don kula da 'snug' dacewa.
