Analysis of cutting force, feed force and surface roughness of Cu-Al-Mn shape memory alloys under CNC turning
by N. Praveen; U.S. Mallik; A.G. Shivasiddaramaiah
International Journal of Machining and Machinability of Materials (IJMMM), Vol. 24, No. 6, 2022

Abstract: The present investigation into the CNC turning of Cu-Al-Mn SMAs was conducted using a tungsten carbide tip tool as a cutting tool material to determine the effect of machining factors, such as spindle speed, feed rate, and depth of cut, on the response factors such as cutting force (F_c), feed force (F_f), and surface roughness (R_a). Taguchi's L9 orthogonal array (OA) was used to plan the experiment. During the turning operation, the cutting force and feed force values were noted using a tool dynamometer attachment. From ANOVA, it was noticed that cutting speed and depth of cut were the important factors affecting the F_c, F_f, and R_a, followed by feed rate, which was less significant. From the experimental results, it was identified that with an increase in cutting speed at a particular feed rate and depth of cut, the formation of long thin chips and the number of chip curls rises. The C-type of chip was observed at same cutting conditions. The R_a was evaluated using a Mitutoyo equipment to study the effectiveness of machining operations, and it plays a significant role in predicting product quality as well. For a thorough investigation, chip morphology was examined using SEM analysis.

Online publication date: Mon, 23-Jan-2023

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