Unit 2: Speeds, Feeds, and Tapping – Manufacturing ...
IPM = F x N x RPM = .002 x 2 x 960 = IPM Machine Feed. The machine movement that causes a cutting tool to cut into or along the surface of a workpiece is called feed. The amount of feed is usually measured in thouhs of an inch in metal cutting. Feeds are expressed in slightly different ways on various types of machines.