Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Chul Kyu Jin"'
Publikováno v:
Metals, Vol 14, Iss 10, p 1176 (2024)
Finite element (FE) analysis of the tensile test of TWB-HPF 22MnB5 steel was performed and compared with the experimental results. To improve the accuracy of the simulation, the damage theory of FLD and ductile damage theory were used in 2D and 3D si
Externí odkaz:
https://doaj.org/article/905075123a6c45a6bd43817d190a3cd6
Autor:
Chul Kyu Jin
Publikováno v:
Advances in Mechanical Engineering, Vol 15 (2023)
Bottom-up gated filling system was performed to produce worm wheel through a sand casting of zinc alloy. It was a symmetrical design in which two worm wheels were cast at once, the worm wheel was erected in the direction of gravity and had a gating s
Externí odkaz:
https://doaj.org/article/9c5ac6428c5949ffb2040c40add1a1dd
Publikováno v:
Metals, Vol 13, Iss 10, p 1713 (2023)
Using a tailor-welded blank (TWB) and hot-press forming (HPF), a 22MnB5 blank was surface-treated under four conditions. The penetration rates of the FexAly compounds under the four surface-treatment conditions were investigated, and the hardness val
Externí odkaz:
https://doaj.org/article/316b6009bab84ed589380a69f54a4067
Autor:
Chul Kyu Jin
Publikováno v:
Metals, Vol 12, Iss 12, p 2051 (2022)
The thixo process has the benefit of producing a semi-solid material in which fine primary α-Al grains are uniformly distributed. However, it also has the disadvantage of a costly raw material billet. In this study, a semi-solid slurry was prepared
Externí odkaz:
https://doaj.org/article/4a5e3435eb614bc48b959682acce8938
Publikováno v:
Energies, Vol 15, Iss 22, p 8463 (2022)
For the high performance of a fuel cell where a bipolar plate (BP) is applied, rectangular channel, microchannel width, micro-rib, enough channel quantity, adequate channel depth, and innovative flow field design should be realized from a configurati
Externí odkaz:
https://doaj.org/article/0ded12b1493f44b88b97d405e15d71d1
Publikováno v:
Metals, Vol 12, Iss 11, p 1941 (2022)
Various techniques can be applied to center pillars to enhance collision characteristics during side crashes. For instance, patchwork (PW) can be welded to the center pillar to increase its stiffness, and partial softening (PS) can be applied to prov
Externí odkaz:
https://doaj.org/article/1d2a899f6b394d93b0e062290d6636fe
Publikováno v:
Advances in Mechanical Engineering, Vol 12 (2020)
The variables of die temperature, pressure, time, lamination method, and forming count are applied to fabricate thermosoftening CFRP (CFRTP) with compression molding method. The mechanical properties of CFRTP are compared with those of thermosetting
Externí odkaz:
https://doaj.org/article/6ce7cd8c3b60418385629beee3f6174c
Publikováno v:
Metals, Vol 10, Iss 4, p 460 (2020)
This paper focuses on the electromagnetically stirred process for manufacturing the material required for the semi-solid forming method. The maximum weight of the molten metal used at a laboratory scale in the currently published research is 3 kg. Ho
Externí odkaz:
https://doaj.org/article/f6da0f4f8b3a445aaed67fba1b510412
Autor:
Chul Kyu Jin
Publikováno v:
Metals, Vol 10, Iss 3, p 395 (2020)
A progressive forming method is applied where stamping is continuously executed to produce the rectangular fins of the plate fin heat exchanger. This process produced the fins one-by-one instead of by bundles. In order to produce a fin having a depth
Externí odkaz:
https://doaj.org/article/fda9715586764d97927b1e88b11be633
Autor:
Tae Won Kim, Chul Kyu Jin, Ill Kab Jeong, Sang Sub Lim, Jea Chul Mun, Chung Gil Kang, Hyung Yoon Seo, Jong Deok Kim
Publikováno v:
Metals, Vol 5, Iss 2, Pp 706-719 (2015)
In casting steel for offshore construction, integral casted structures are superior to welded structures in terms of preventing fatigue cracks in the stress raisers. In this study, mold design and casting analysis were conducted for integral carrier
Externí odkaz:
https://doaj.org/article/f87747b9990142ab8b23013f620257a8