Suppose you want to shape a block of metal 7 in. wide and 4 in. long (L = 4 in.) using a shaper as set up in Figure 27-1.You have determined for this metal that the cutting speed should be 25 sfpm, the depth of cut needed here for roughing is 0.25 in., and the feed will be 0.1 in. per stroke. Determine the approximate crank rpm and then estimate the cutting time and the MRR.
