Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Dong-Gyu Ahn"'
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
Autor:
Ho-Jin Lee, Dong-Gyu Ahn
Publikováno v:
Journal of Materials Research and Technology, Vol 14, Iss , Pp 1873-1883 (2021)
A preheating step consisting of the heating of substrates and powder particles is necessary to prevent spreading phenomenon of powders in an electron beam melting (EBM) process. The preheating step, however, increases the overall manufacturing time a
Externí odkaz:
https://doaj.org/article/f86059784df448ff920e3b60cd2a448f
Publikováno v:
Materials, Vol 14, Iss 12, p 3404 (2021)
Three-dimensional prototypes and final products are commonly fabricated using the material extrusion (ME) process in additive manufacturing applications. However, these prototypes and products are limited to a single material using the ME process due
Externí odkaz:
https://doaj.org/article/12601392c5a349bead6451505e017e83
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
Publikováno v:
Materials, Vol 14, Iss 6, p 1383 (2021)
Four-dimensional (4D) printing is a unique application of additive manufacturing (AM) which enables additional shape transformations over time. Although 4D printing is an interesting and attractive phenomenon, it still faces several challenges before
Externí odkaz:
https://doaj.org/article/37b62cfd710b464b8b347f1ebfd55f1d
Autor:
Bih-Lii Chua, Dong-Gyu Ahn
Publikováno v:
Materials, Vol 13, Iss 21, p 4935 (2020)
Directed energy deposition (DED) provides a promising additive manufacturing method to fabricate and repair large metallic parts. However, it may suffer from excessive heat accumulation due to a high build rate, particularly during a wire feeding-typ
Externí odkaz:
https://doaj.org/article/4ada46de14ac45e6ae27651ec748ab31
Autor:
Sanghoon Lee, Wonjong Yu, Yujae Jang, Sangbong Ryu, Jaewon Hwang, Gu Young Cho, Dong-Gyu Ahn, Suk Won Cha
Publikováno v:
ACS Applied Materials & Interfaces; 7/31/2024, Vol. 16 Issue 29, p37874-37884, 11p
Publikováno v:
Journal of the Korean Society for Precision Engineering. 39:791-797
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d967ef1e4cc1a24af3110df8b7e21c8
https://doi.org/10.7736/jkspe.022.094
https://doi.org/10.7736/jkspe.022.094
Publikováno v:
International Journal of Precision Engineering and Manufacturing-Green Technology. 9:1575-1582
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2566ef7cab4e17e9a2845fc4928879ab
https://doi.org/10.1007/s40684-022-00468-2
https://doi.org/10.1007/s40684-022-00468-2
Publikováno v:
Journal of Mechanical Science and Technology. 36:4695-4705
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed5e0ed13778f2736ef1c9b7dc3fb02d
https://doi.org/10.1007/s12206-022-0830-2
https://doi.org/10.1007/s12206-022-0830-2