Zobrazeno 1 - 10
of 1 104
pro vyhledávání: '"Hyub Lee"'
Autor:
Hyub Lee, Cheol-soo Kim
Publikováno v:
Kervan. International Journal of Afro-Asiatic Studies, Vol 27, Iss 1 (2023)
This article attempts to analyze how Kim Hyun-seung’s thoughts about Christianity have changed throughout his poetic works. Considered to be a Puritan-like-figure, Kim Hyun-seung is regarded as the most representative Christian poet in Korea. His w
Externí odkaz:
https://doaj.org/article/4697210703a04a10bafb1ef4bc5582e0
Publikováno v:
Virtual and Physical Prototyping, Vol 17, Iss 2, Pp 156-169 (2022)
Rapid advances in 3D printing enable the construction of complex metal structures. However, sensor embedding within 3D printed metal structures has been challenging due to its extremely high-temperature condition. Here, we embedded an optical fibre s
Externí odkaz:
https://doaj.org/article/452aa3fe1acb4250ab6275f4f3fc3986
Publikováno v:
Journal of Materials Research and Technology, Vol 17, Iss , Pp 293-309 (2022)
The heat treatment and the shape of the substrate greatly affect thermal and mechanical characteristics of the super-alloy-deposited region by a directed energy deposition (DED) process. The goal of this paper is to investigate the influence of the h
Externí odkaz:
https://doaj.org/article/3b731210c44a4d6f9d04483ff2879cbd
Publikováno v:
Journal of Materials Research and Technology, Vol 17, Iss , Pp 478-497 (2022)
For multi-materials having different compositions, delamination or crack may occur at the interface of two dissimilar materials due to differences in a lattice structure, residual thermal stress, and coefficient of thermal expansion. To solve such pr
Externí odkaz:
https://doaj.org/article/7cc92c8808dc4da7a8a604a00bcc8400
Publikováno v:
Materials & Design, Vol 225, Iss , Pp 111574- (2023)
To study the mechanical behavior of the interface region that appears when dissimilar metals are deposited by additive manufacturing process, maraging steel was deposited on S45C carbon steel via directed energy deposition. A 3.3 mm-thick plate obtai
Externí odkaz:
https://doaj.org/article/425529dc83d24ad9be4aea5101de4de6
Autor:
Seung-Chang Han, Umer Masood Chaudry, Sandra Bernardo Cenalmor, Si Mo Yeon, Jongcheon Yoon, Hyub Lee, Kyeongtae Kim, Tea-Sung Jun
Publikováno v:
Metals, Vol 13, Iss 7, p 1214 (2023)
The directed energy deposition (DED) process offers potential advantages, such as a large building space, limited dilutions, narrow heat-affected zones (HAZ) and potentially improved surface properties. Moreover, heat treatments have been reported to
Externí odkaz:
https://doaj.org/article/bbb541dc8f894e5aab01970b99ae576e
Publikováno v:
Journal of Materials Research and Technology, Vol 13, Iss , Pp 980-999 (2021)
In this study, we report a method for the repair of damaged SUS 630 parts by directed energy deposition (DED). Herein, we aim to analyze the variations in the mechanical properties of such parts caused by post-repair heat treatment performed to regai
Externí odkaz:
https://doaj.org/article/3aa6e864b965433fa065b44babfe4b3b
Autor:
Sang Hoon Kim, Si-Mo Yeon, Jae Hyang Lee, Young Won Kim, Hyub Lee, Jiyong Park, Nak-Kyu Lee, Joon Phil Choi, Clodualdo Aranas, Yong Jin Lee, Seouk An, Kyunsuk Choi, Yong Son
Publikováno v:
Virtual and Physical Prototyping, Vol 15, Iss 4, Pp 460-480 (2020)
The precise shape of a shift block support for the turbine blade of a hovercraft was additively manufactured using 17–4 precipitation-hardened stainless steel (STS 630) powder through laser powder bed fusion (LPBF). Subsequently, heat treatment und
Externí odkaz:
https://doaj.org/article/ed3af24f985745fe8e2159a11eb0fa82
Publikováno v:
Materials, Vol 14, Iss 7, p 1794 (2021)
Thermomechanical characteristics are highly dependent on the deposition strategy of the directed energy deposition (DED) process, including the deposition path, the interpass time, the deposition volume, etc., as well as the preheating condition of t
Externí odkaz:
https://doaj.org/article/3c5ad9ca3e264505bb1e18b680a46f16
Autor:
Sang Hyub Lee, Junghan Seo, Dain Jeong, Jin Seop Hwang, Jae-Won Jang, Yong Eun Cho, Dong-Geun Lee, Choon Keun Park
Publikováno v:
Neurospine, Vol 21, Iss 3, Pp 807-819 (2024)
Objective The unilateral biportal endoscopic posterior cervical foraminotomy (UBE-PCF) has been recently adopted for unilateral radiating arm pain due to cervical herniated intervertebral disc or foraminal stenosis. We systematically meta-analyzed cl
Externí odkaz:
https://doaj.org/article/8aa4f984792b45468dce8b472ec9d72f