14For any given material, there is a recommended minimum bend radius. You need to look this up. Optimal materials for machining often are quite different from optical material for sheet metal fabrication. For example, the usual grade of aluminium for machining is 6061-T6. For a 14 gauge panel (.064”), the bend radius is .096”. For aluminium 5052-H32, the radius is .064.[6] Aluminium 5052-H32 is popular with sheet metal fabricators.