Mechanics of Orthogonal Machining

In an attempt to overcome the deficiencies of existing theories of cutting, an experimental technique was developed for observing the cutting process during slow orthogonal cutting of mild steel. An attempt to find consistency between the observations and the ideal theory of plasticity failed. Consequently the theory was extended by including the effect of work- hardening and, in spite of the laborious nature of the analysis, it appeared that consistency had been regained. This led to a novel and physically consistent picture of the cutting process, which was taking place during the tests.