You are considering turning a piece of metal for your produc

You are considering turning a piece of metal for your product (drive axle for a tractor). The look up table gives the following values for your material and tools. What is each of these? SPFM: Feed: DOC: Depth of cut. How are they used in daily shop operations? Individually: Together:

Solution

Surface feet per minute(SPFM):

SPFM is defined as the number of linear feet that a location on a rotating component travels in one minute

Feed:

Feed is the distance the tool bit advances along the work for each revolution of the lathe spindle. It is measured in inches or millimeters per revolution

DEPTH OF CUT:

DOC is defined as the distance that the tool bit moves into the work. It is measured in thousandths of an inch or in millimeters