Optimizing multi-requirements of surface finishing in magnetic abrasive cutting process using grey relational analysis
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DOI 10.1007/s12206-020-09 -y
Journal of Mechanical Science and Technology 34 (10) 2020 Original Article DOI 10.1007/s12206-020-2217-6 Keywords: · Fine-finishing · Magnetic Intensity · Magnetic abrasive cutting · Grey relational analysis
Optimizing multi-requirements of surface finishing in magnetic abrasive cutting process using grey relational analysis Jung-Hee Lee and Jae-Seob Kwak Department of Mechanical Engineering, Pukyong National University, Busan 48547, Korea
Correspondence to: Jae-Seob Kwak [email protected]
Citation: Lee, J.-H., Kwak, J.-S. (2020). Optimizing multi-requirements of surface finishing in magnetic abrasive cutting process using grey relational analysis. Journal of Mechanical Science and Technology 34 (10) (2020) 4061~4067. http://doi.org/10.1007/s12206-020-2217-6
Received April 21st, 2020 Revised
July 1st, 2020
Accepted July 15th, 2020 † This paper was presented at ICMR2019, Maison Glad Jeju, Jeju, Korea, November 27-29, 2019. Recommended by Guest Editor Insu Jeon
Abstract
Mechanical machining inevitably generates undesirable parts on the surface of workpieces. It brings adverse effects in terms of manufacturing cost, surface fineness, malfunction, and lifetime. In order to achieve precise surface with high geometric accuracy, this study proposes a magnetic abrasive cutting (MAC) process to improve surface roughness and make burr-free on the surface of STD-11. All the experiments were conducted by Taguchi’s orthogonal array method with four determined process parameters and three levels. The results analyzed by signal-to-noise (S/N) ratio and analysis of variance (ANOVA) showed that the working gap was the most contribution to the fine surface with 69.9 %, and viscosity of silicone oil affected high geometric precision with 54.1 %. In addition, to satisfy multiple requirements for improving burr removal and surface roughness simultaneously, grey relational analysis (GRA) was employed. From the analysis, the best configuration was at 1.0 mm of the working gap, 600 rpm of spindle speed, 150000 cs of silicone oil, and 1:3 of mixing ratio of abrasive grains and ferromagnetic particles. This study clearly showed that the MAC process assisted by magnetic force was useful to satisfy multi-objective optimization for surface roughness reduction and burr removal.
1. Introduction
© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Fine-finishing on the machined surface of workpieces is crucial technology in the advanced engineering fields in order to reduce hazardous risks to functionality and productivity of products. Although traditional finishing techniques such as grinding, lapping, and honing have widely employed to remove burr and enhance surface quality in the past decades, these methods have limitations of free-form surface, thermal defects, and efficiency [1, 2]. To address drawbacks that conventional finishing processes have, advanced surface finishing technologies need to be introduced. A magnetic abrasive cutting (MAC) pro
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