Question: In plain turning of a brass rod at a feed of 0.4 mm/rev, what will be the theoretical maximum surface roughness, if (i) the tool is relatively sharp with principal and auxiliary cutting edge angles of 90° and 20°, and (ii) the tool has a considerable nose radius of r = 1.0 mm. [Machining and Machine Tools by A. B. Chattopadhyay] This question is related to the calculation of
Question: During plain turning a brass rod by a turning tool whose principal cutting edge angle is 90° and auxiliary cutting edge angle 20°, the maximum surface roughness has been found to be 0.20 mm. At how much feed rate of the tool, the turning was carried out? [Machining and Machine Tools by A. B. Chattopadhyay] The lay marks that are generated owing to the continuous feed of the cutting
Question: While turning a brass rod by a sharp cutting tool in a given condition, how much (in percentage) change will occur in surface roughness if only the depth of cut is changed from 2.0 mm to 2.5 mm. [Machining and Machine Tools by A. B. Chattopadhyay] Conventional machining processes inherently generate lay marks owing to the continuous feed of the tool. This feed marks primarily determine the theoretical surface
