Effect of cutting parameters on chip formation in orthogonal cutting

This paper aims to study the chip formation to obtain the optimal cutting conditions by observing the different chip formation mechanisms. Analysis of machining of a hardened alloy, X160CrMoV12‐1 (cold work steel: AISI D2 with a ferritic and cementite matrix and coarse primary carbides), showed that there are relationships between the chip geometry, cutting conditions and the different micrographs under different metallurgical states. For the experimental study here, various cutting speeds and feed rates have been applied on the work material. The “saw‐tooth type chips” geometry has been examined and the chip samples were metallographically processed and observed under scanning electronic microscope (SEM) to determine if white layers are present.

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