Official Answer
Answer
Rashin ƙarfi yana faruwa a lokacin da nauyin turawa ya wuce ƙarfin juzu'in kayan, yadda ya kamata 'yanke' zobe tare da layin tsagi. Wannan yanayin rashin gazawa ne kuma ya fi kowa a cikin zobe masu taurin gaske (HRC> 52). Yayin da taurin mafi girma yana ƙara ƙarfin shear $S_s$, yana rage taurin karyewar kayan. Idan zoben yana da tasiri mai nauyi, zobe mai ƙarfi na iya karye maimakon lalacewa. Don yawancin aikace-aikacen, kewayon taurin HRC 44-48 don ƙarfe na carbon ko HRC 40-45 don 17-7PH yana ba da ma'auni mafi kyau tsakanin ƙarfin ƙarfi da juriya mai tasiri.
