Cutting of 316L stainless steel for metal mesh implant using CO2 laser cutting: Analysis and optimization
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Author |
Gunawan, Armansyah Ginting and Suprianto
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e-ISSN |
1819-6608 |
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On Pages
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1165-1172
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Volume No. |
19
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Issue No. |
18
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Issue Date |
December 14, 2024
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DOI |
https://doi.org/10.59018/092446
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Keywords |
taguchi-grey relational analysis (T-GRA), dimension, heat affected zone (HAZ), parameter optimization.
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Abstract
This study investigates the effects of CO2 laser cutting parameters on the quality of 316L stainless steel used for metal mesh implants. A Taguchi L9 orthogonal array was employed to design the experiments with three factors: laser power (100-200 W), cutting speed (50-150 mm/min), and gas pressure (3-9 bar). The dimensions (Dim) and heat-affected zone (HAZ) of the cuts were analyzed using both Taguchi and Hybrid Taguchi-Grey Relational Analysis (T-GRA) methods. Results from Taguchi analysis identified the optimal parameters for minimizing Dim as 100 W, 100 mm/min, and 6 bar, and for HAZ as 100 W, 50 mm/min, and 6 bar. ANOVA indicated that laser power significantly influenced both Dim (41.11%) and HAZ (28.10%). T-GRA optimization predicted the optimal parameters as 200 W, 50 mm/min, and 3 bar, confirmed through validation experiments with a Grey Relational Grade (GRG) of 0.969. The study concludes that laser power is the most critical parameter, followed by gas pressure and cutting speed, providing a comprehensive optimization strategy for laser cutting 316L stainless steel for medical implants.
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