Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Niranjan D. Parab"'
Autor:
S. Mohammad H. Hojjatzadeh, Niranjan D. Parab, Wentao Yan, Qilin Guo, Lianghua Xiong, Cang Zhao, Minglei Qu, Luis I. Escano, Xianghui Xiao, Kamel Fezzaa, Wes Everhart, Tao Sun, Lianyi Chen
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
3D printing pore-free complex metal parts remains a challenge. Here, the authors combine in-situ imaging and simulations to show thermocapillary force can eliminate pores from the melt pool during a laser powder bed fusion process.
Externí odkaz:
https://doaj.org/article/71e348742c82408a86bc8707e88bc2b5
Autor:
Luis I. Escano, Niranjan D. Parab, Lianghua Xiong, Qilin Guo, Cang Zhao, Kamel Fezzaa, Wes Everhart, Tao Sun, Lianyi Chen
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
Abstract Powder spreading is a key step in the powder-bed-based additive manufacturing process, which determines the quality of the powder bed and, consequently, affects the quality of the manufactured part. However, powder spreading behavior under a
Externí odkaz:
https://doaj.org/article/b02190fcc49545fd9455977808d1b2de
Autor:
S. Mohammad H. Hojjatzadeh, Qilin Guo, Niranjan D. Parab, Minglei Qu, Luis I. Escano, Kamel Fezzaa, Wes Everhart, Tao Sun, Lianyi Chen
Publikováno v:
Materials, Vol 14, Iss 11, p 2936 (2021)
Laser powder bed fusion (LPBF) is an additive manufacturing technology with the capability of printing complex metal parts directly from digital models. Between two available emission modes employed in LPBF printing systems, pulsed wave (PW) emission
Externí odkaz:
https://doaj.org/article/5fc20ad9e1534f2a95e1e8750c8e09b2
Autor:
S. Mohammad H. Hojjatzadeh, Niranjan D. Parab, Wentao Yan, Qilin Guo, Lianghua Xiong, Cang Zhao, Minglei Qu, Luis I. Escano, Xianghui Xiao, Kamel Fezzaa, Wes Everhart, Tao Sun, Lianyi Chen
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-1 (2019)
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Externí odkaz:
https://doaj.org/article/8d9b612670184c72a510460d8f232db2
Autor:
Wei Yi Yeoh, Tao Sun, Niranjan D. Parab, Christopher M. Kube, Anthony D. Rollett, Jared Gillespie, Bo Lan, Cang Zhao
Publikováno v:
The Journal of the Acoustical Society of America. 150:2409-2420
Metal additive manufacturing is a fabrication method that forms a part by fusing layers of powder to one another. An energy source, such as a laser, is commonly used to heat the metal powder sufficiently to cause a molten pool to form, which is known
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9935131be2eb80c10f8a8204bb0e8b51
https://doi.org/10.1121/10.0006386
https://doi.org/10.1121/10.0006386
Publikováno v:
Acta Geotechnica. 16:3489-3516
This paper presents the results and analyses of uniaxial compression experiments performed on three silica sands. The sands have comparable particle-size distributions, but their particles differ in morphology and strength. Cylindrical samples of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::341d8ece231ec601847a9b4b243d40ef
https://doi.org/10.1007/s11440-021-01309-3
https://doi.org/10.1007/s11440-021-01309-3
Publikováno v:
Procedia Manufacturing. 53:148-154
Laser based directed energy deposition (DED) is a competitive method for repairing and remanufacturing metallic parts used in numerous industries including aerospace and biomedical. However, the numerous dynamic phenomena associated with the DED proc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61a2d36b0906b12eac82e4c92298e6cd
https://doi.org/10.1016/j.promfg.2021.06.019
https://doi.org/10.1016/j.promfg.2021.06.019
Autor:
Luis I. Escano, Niranjan D. Parab, Qilin Guo, Minglei Qu, Kamel Fezzaa, Wes Everhart, Tao Sun, Lianyi Chen
Publikováno v:
The Review of scientific instruments. 93(4)
In powder-bed-based metal additive manufacturing (AM), the visualization and analysis of the powder spreading process are critical for understanding the powder spreading dynamics and mechanisms. Unfortunately, the high spreading speeds, the small siz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25d5e0c817bc7c13176095a34c5d12eb
https://pubmed.ncbi.nlm.nih.gov/35489882
https://pubmed.ncbi.nlm.nih.gov/35489882
Autor:
Tao Sun, Anthony D. Rollett, Wenda Tan, Niranjan D. Parab, Kamel Fezzaa, Cang Zhao, Xuxiao Li
Publikováno v:
Science. 370:1080-1086
Driving the pores away The formation of “keyholes” (vapor-filled depressions) during additive manufacturing leads to porosity, which degrades alloy performance, especially fracture properties, and remains a big challenge for the 3D printing of me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc2b66355c690e7cc1005012384450c1
https://doi.org/10.1126/science.abd1587
https://doi.org/10.1126/science.abd1587
Autor:
Benjamin Aronson, Niranjan D. Parab, Aaron Greco, Sarah Wolff, Samantha Webster, Tao Sun, Benjamin Gould
Publikováno v:
JOM. 73:189-200
In laser-based directed energy deposition (DED) additive manufacturing, interactions among the laser beam, particle flow, and melt pool influence the properties of the solidified final part. Two separate DED systems, one with high powder flow rates t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2231411b7707dbc41ad9afaff5fcda8
https://doi.org/10.1007/s11837-020-04469-x
https://doi.org/10.1007/s11837-020-04469-x