ChangHyun Baek

Mr. ChangHyun Baek


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 March 2021 in Materials
Verified
Journal Article
Open access
PDF file
JKJeong Hun Kim
Jeong Hun Kim
CBChangHyun Baek
ChangHyun Baek
SLSang-Kon Lee
Sang-Kon Lee
JKJonghun Kang
Jonghun Kang
JPJOON HONG PARK
JOON HONG PARK
Dae-Cheol KoDae-Cheol Ko
Dae-Cheol Ko
Residual stress may influence the mechanical behavior and durability of drawn materials. Thus, this study develops a multiple reduction die (MRD) that can reduce residual stress during the drawing process. The MRD set consists of several die tips, die cases, and lubricating equipment. All the die tips of the MRD were disposed of simultaneously. Finite element analysis of the drawing process was performed according to the reduction ratio of each die tip, and the variables in drawing process with the MRD were optimized using a deep neural network to minimize the residual stress. Experiments on the drawing process with the conventional die and MRD were performed to evaluate the residual stress and verify the effectiveness of the MRD. The results of X-ray diffraction measurements indicated that the axial and hoop residual stresses on the surface were dramatically reduced.