The main equation that you’ll need is the one relating feed rate and feed:
Feed_rate = rotational velocity * feedThe feed rate can be calculated using the overall part length and the amount of time that it takes to cut the part (b) Consider the turning process step, which provides a smooth outer
(b) Consider the turning process step, which provides a smooth outer surface for the case. Assume that the case has a height of 250 mm and a diameter of 150 mm. First assume that a tungsten carbide cutting tool is used, which has a maximum recommended cutting speed of 25 m/s for the aluminum alloy of which the case is made. What is the smallest feed that can be used if the turning process is to be completed in no more than 20 s?
(c) What modification(s) to feed, speed, tool material or other parameters might you suggest to achieve an even smoother finish without extending the processing time? Mention any potential drawbacks of making the changes you suggest.