Optimization of Micro-Textured Tools Geometric Parameters in Turning of 17-4PH Stainless Steel

Document Type : Research Article

Authors

1 Department of Engineering, Payame Noor University, Tehran, Iran

2 Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran

Abstract

In this study, the effect of microtextures parallel to the cutting edge on the rake face of cutting tools during the turning process of 17-4PH steel was investigated. The depth, width, and distance of micro-textures were studied. Turning tests were performed with the created tools and the cutting force was measured by a dynamometer. The results showed that by increasing the width of microgrooves, the cutting force first decreases and then increases. This trend shows that the width of the microgrooves has an optimal value in which the cutting force during the turning process is minimal. Also, the cutting force is reduced by increasing the depth of microgrooves. By increasing the distance of microgrooves, it was found that the cutting force has increased. Based on the optimization results, the optimal values of the parameters of width, depth, and distance of the microgrooves are 126 µm, 15 µm, and 200 µm, respectively. The calculated error percentage for optimization validation was 5.81%, which indicates the high accuracy of the optimization process in the Design-Expert software. The deflection of the workpiece was achieved with a tool with an optimal microgroove of 30 µm and with a plane tool equal to 62 µm, which shows a 51.6% reduction with a textured tool. In fact, the accuracy of the machined part was improved with microtextured tools.

Keywords

Main Subjects

References

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Amirkabir Journal of Mechanical Engineering
Volume 54, Issue 10
January 2023
Pages 2411-2428

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