We have seen that cutting speed feed and depth of cut are th

We have seen that cutting speed, feed, and depth of cut are the main parameters in a turning operation. In relative terms, at what values should these parameters he set for a (a) roughing operation and (b) finishing operation?

Solution

a)

Depth of cut will be higher for roughing operation, it could be 30-70% higher than that in the finishing operation.

Feed will also be higher for rough operation. It can be 30 - 50% higher than that in finishing.

Speed can be higher for finishing operation. Can be increased by 10 - 100%