Official Answer
Answer
Ɗaya daga cikin fa'idodin tallace-tallace na farko na zoben riƙewa na karkace shine ikon shigar da su ba tare da ƙwanƙwasa na musamman ba. Don shigar da 'ba-kayan aiki', zobe yana farawa a cikin tsagi da hannu sannan kuma 'rauni' a ciki. Duk da haka, don samar da girma mai girma, ana amfani da madaidaicin maɗaukaki (don zoben waje) ko hannun riga (don zoben ciki). Mandar ya kamata ya kasance yana da santsi, mai tauri (R_c 50-55$) da kusurwar da bai wuce $10^°$ ba. A plunger sai ya tura zobe a kan mandrel, yana faɗaɗa (ko kwangila) ya isa ya zamewa cikin tsagi. Yana da mahimmanci cewa kayan aiki ba zai ƙara damuwa da zoben ba; Fadada kada ya wuce 1% na diamita na zobe don hana nakasu na dindindin.
