In a turning operation on an aluminum alloy workpiece, feed = 0.5 mm/rev, and depth of cut = 3.5 mm. The motor horsepower of the lathe = 17 hp, and it has a mechanical efficiency = 92%. What is the maximum cutting speed that can be used on this job? HP = Correction Factor = RMR = HP = Equivalency 1 hp = = N-m/mm v mm/s v N-m/s (or W) N-m/s V = m/s W (or N-m/s) (7)