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"분산분석"

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"분산분석"

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A Study on Optimizing Machining Conditions for Enhanced Surface Roughness in High Tensile Cast Steels
Seong Je Woo, Hyo Chang Kim, Jeon Won Pyo, Sung Ki Lyu
J. Korean Soc. Precis. Eng. 2026;43(7):709-716.
Published online July 1, 2026
DOI: https://doi.org/10.7736/JKSPE.026.00012
This study employed the Taguchi method to determine the optimal milling parameters for cast steel, aiming to minimize surface roughness. The analysis indicated that the feed rate was the most significant factor, with lower feed rates resulting in improved surface finish. In contrast, spindle speed and radial depth of cut had minimal impact, while axial depth of cut and tempering temperature emerged as crucial determinants. A linear regression model accounted for 87.46% of the variance in surface roughness. The predicted optimal conditions closely aligned with experimental results, yielding only a 2.93% error and achieving an average surface roughness of 3.033 μm. These findings provide a predictive framework for achieving the desired surface quality in milling processes.
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Article
Effect of Protection Design Parameters on Mine Blast Impact Characteristics
Chanyoung Park, Chongdu Cho
J. Korean Soc. Precis. Eng. 2018;35(5):521-529.
Published online May 1, 2018
DOI: https://doi.org/10.7736/KSPE.2018.35.5.521
While designing an armored vehicle platform, survivability is the most important capability and so protection design should be performed. In particular, mine protection design should be preferentially considered in a way that can reduce mass casualties. In this study, a simplified model, the main design parameters and their levels were defined, and then mine blast simulations were performed to obtain an effective protection design procedure. Before performing the main simulation, an experiment and simulation for a simple armor plate were performed and compared in order to certify the reliability of the numerical model. Afterwards, simulation cases, which were based on the reasonable numerical model, were defined by the DOE (Design of Experiment). An evaluation of the simulation results was carried out through both the contour and in a statistical manner, via a main effect analysis and ANOVA (Analysis of Variance). Finally, the impact characteristics of a protection parameters under the mine blast were estimated.

Citations

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  • Development of Effective Test Method for Positioning Accuracy of Armed Vehicle Inertial Navigation System
    Sung Hoon Kim, In Hwa Bae, Sang Boo Kim
    Journal of Korean Society for Quality Management.2023; 51(4): 619.     CrossRef
  • The Study on the Mine Protective Structural Design of Wheeled Armored Vehicle Body
    Chan Young Park, Kyoung Hoon Lee
    Journal of the Korean Society for Precision Engineering.2019; 36(3): 255.     CrossRef
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