Advanced design and manufacturing of custom orthotics insoles based on hybrid Taguchi-response surface method
Herein, a machining strategy to fabricate custom orthotic insoles with high surface finish and wide fit tolerance is presented. CNC milling was used to machine ethylene-vinyl acetate (EVA) foam for insoles with various surface hardness, and the Taguchi-response surface method (TM-RSM) was adopted to...
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Elsevier
2021-03-01
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Series: | Heliyon |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844021005867 |
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author | P.W. Anggoro B. Bawono J. Jamari M. Tauviqirrahman A.P. Bayuseno |
author_facet | P.W. Anggoro B. Bawono J. Jamari M. Tauviqirrahman A.P. Bayuseno |
author_sort | P.W. Anggoro |
collection | DOAJ |
description | Herein, a machining strategy to fabricate custom orthotic insoles with high surface finish and wide fit tolerance is presented. CNC milling was used to machine ethylene-vinyl acetate (EVA) foam for insoles with various surface hardness, and the Taguchi-response surface method (TM-RSM) was adopted to optimize the parameters of the CNC milling process (cutting speed, feed rate, tool path strategy, and step over). EVA foam with varying surface hardness and the tolerance of the wide fit insoles corresponding to the surface roughness were analyzed. Subsequently, a mathematical model was established to determine the optimal CNC milling parameters for a standard milling cutter under dry coolants. The results of the six parameters corresponding to the mean values of surface roughness were initially examined using the signal-to-noise ratio of the Taguchi method (TM). The surface roughness obtained with the TM-RSM was up to 4.13% higher than that obtained with the TM. The EVA foam insole with a surface hardness of 50–60 HRC and a wide fit tolerance of 0.75 mm provided the ideal level of comfort and support for patients with diabetes. The results of this study demonstrated that CNC milling provided a better surface finish of orthotic shoe insoles than other methods, which can serve as guidance in the development of machining strategies for insoles made from EVA foam. |
first_indexed | 2024-12-19T12:13:13Z |
format | Article |
id | doaj.art-61b720971fc5434e84af14cce038a9ae |
institution | Directory Open Access Journal |
issn | 2405-8440 |
language | English |
last_indexed | 2024-12-19T12:13:13Z |
publishDate | 2021-03-01 |
publisher | Elsevier |
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series | Heliyon |
spelling | doaj.art-61b720971fc5434e84af14cce038a9ae2022-12-21T20:22:06ZengElsevierHeliyon2405-84402021-03-0173e06481Advanced design and manufacturing of custom orthotics insoles based on hybrid Taguchi-response surface methodP.W. Anggoro0B. Bawono1J. Jamari2M. Tauviqirrahman3A.P. Bayuseno4Department of Industrial Engineering, Faculty of Industrial Technology, University of Atma Jaya Yogyakarta, Jl. Babarsari 44, Yogyakarta 55281, Indonesia; Corresponding author.Department of Industrial Engineering, Faculty of Industrial Technology, University of Atma Jaya Yogyakarta, Jl. Babarsari 44, Yogyakarta 55281, IndonesiaDepartment of Mechanical Engineering, University of Diponegoro, Jl. Prof. Soedarto, SH., Tembalang, Semarang 50275, IndonesiaDepartment of Mechanical Engineering, University of Diponegoro, Jl. Prof. Soedarto, SH., Tembalang, Semarang 50275, IndonesiaDepartment of Mechanical Engineering, University of Diponegoro, Jl. Prof. Soedarto, SH., Tembalang, Semarang 50275, IndonesiaHerein, a machining strategy to fabricate custom orthotic insoles with high surface finish and wide fit tolerance is presented. CNC milling was used to machine ethylene-vinyl acetate (EVA) foam for insoles with various surface hardness, and the Taguchi-response surface method (TM-RSM) was adopted to optimize the parameters of the CNC milling process (cutting speed, feed rate, tool path strategy, and step over). EVA foam with varying surface hardness and the tolerance of the wide fit insoles corresponding to the surface roughness were analyzed. Subsequently, a mathematical model was established to determine the optimal CNC milling parameters for a standard milling cutter under dry coolants. The results of the six parameters corresponding to the mean values of surface roughness were initially examined using the signal-to-noise ratio of the Taguchi method (TM). The surface roughness obtained with the TM-RSM was up to 4.13% higher than that obtained with the TM. The EVA foam insole with a surface hardness of 50–60 HRC and a wide fit tolerance of 0.75 mm provided the ideal level of comfort and support for patients with diabetes. The results of this study demonstrated that CNC milling provided a better surface finish of orthotic shoe insoles than other methods, which can serve as guidance in the development of machining strategies for insoles made from EVA foam.http://www.sciencedirect.com/science/article/pii/S2405844021005867EVA foamCNC millingRSMTaguchi methodSurface roughnessOptimization |
spellingShingle | P.W. Anggoro B. Bawono J. Jamari M. Tauviqirrahman A.P. Bayuseno Advanced design and manufacturing of custom orthotics insoles based on hybrid Taguchi-response surface method Heliyon EVA foam CNC milling RSM Taguchi method Surface roughness Optimization |
title | Advanced design and manufacturing of custom orthotics insoles based on hybrid Taguchi-response surface method |
title_full | Advanced design and manufacturing of custom orthotics insoles based on hybrid Taguchi-response surface method |
title_fullStr | Advanced design and manufacturing of custom orthotics insoles based on hybrid Taguchi-response surface method |
title_full_unstemmed | Advanced design and manufacturing of custom orthotics insoles based on hybrid Taguchi-response surface method |
title_short | Advanced design and manufacturing of custom orthotics insoles based on hybrid Taguchi-response surface method |
title_sort | advanced design and manufacturing of custom orthotics insoles based on hybrid taguchi response surface method |
topic | EVA foam CNC milling RSM Taguchi method Surface roughness Optimization |
url | http://www.sciencedirect.com/science/article/pii/S2405844021005867 |
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