Some Effects of Cutting Fluid on Milling Process

Abstract

In the peripheral milling process with a single straight cutting edge, two components of cutting force both in dry cutting and wet cutting are measured precisely corresponding to the undeformed chip thickness. On the basis of these experimental results, the effects of cutting fluid both in up milling and down milling are investigated. The main effects of cutting fluid obtained from the experimental results are as follows : (i) The effects of cutting fluid are generally remarkable in down milling. When the rake angle is large, however, the effects are almost nonexistant. (ii) The smaller the feed per tooth, the more remarkable the effects of cutting fluid. (iii) The effects are generally greater in thrust force than in normal force. This tendency is notable in smaller feed, too. On the basis of these experimental data, some considerations of the frictional behavior on tool rake face are made both for dry cutting and wet cutting.