Zobrazeno 1 - 10
of 27
pro vyhledávání: '"R.K. Ganeriwala"'
Autor:
Rongpei Shi, Thejaswi U. Tumkur, Bey Vrancken, John D. Roehling, Joseph T. McKeown, Manyalibo J. Matthews, William L. Smith, R.K. Ganeriwala, Tien T. Roehling, Gabriel M. Guss, Saad A. Khairallah
Publikováno v:
Procedia CIRP. 94:200-204
Laser powder bed fusion has proven to be an effective additive manufacturing technology for the manufacture of complex metal components. However, the local thermal history associated with Gaussian beam, raster scan processes produces heterogeneous an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::060c13c083f1243b6182064ec12007ff
https://doi.org/10.1016/j.procir.2020.09.038
https://doi.org/10.1016/j.procir.2020.09.038
Autor:
Michael R. Hill, Maria Strantza, Manyalibo J. Matthews, Ava S. Ashby, Bey Vrancken, John D. Roehling, Joseph T. McKeown, William L. Smith, Gabriel M. Guss, Bjørn Clausen, Donald W. Brown, R.K. Ganeriwala
Fabricating parts using laser powder bed fusion (LPBF) is of growing interest to many fields, ranging from medical to aerospace, but this process is often plagued with residual stresses that can reach magnitudes as high as the yield strength of the m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3142fdd1ab4ac7ee15bfd3fc2e282d53
https://escholarship.org/uc/item/46z1c7q2
https://escholarship.org/uc/item/46z1c7q2
Autor:
Donald W. Brown, R.K. Ganeriwala, Bjørn Clausen, Maria Strantza, N.E. Hodge, Thien Q. Phan, Wayne E. King, Lyle E. Levine
Publikováno v:
Additive Manufacturing. 27:489-502
The build-up of residual stresses in a part during laser powder bed fusion provides a significant limitation to the adoption of this process. These residuals stresses may cause a part to fail during a build or fall outside the specified tolerances af
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a38b53d9aa36a51830d32e67e47f3cf9
https://doi.org/10.1016/j.addma.2019.03.034
https://doi.org/10.1016/j.addma.2019.03.034
Autor:
Tien T. Roehling, Michael F. Toney, R.K. Ganeriwala, Aiden A. Martin, Philip J. Depond, Johanna Nelson Weker, Nicholas P. Calta, Kevin H. Stone, Jenny Wang, Andrew M. Kiss, Anthony van Buuren, Manyalibo J. Matthews, Anthony Y. Fong, Vivek Thampy, Christopher J. Tassone, Duncan R.C. Lee
Publikováno v:
Materials & Design, Vol 195, Iss, Pp 108987-(2020)
Metal parts produced by laser powder bed fusion (LPBF) additive manufacturing exhibit characteristic microstructures comparable to those observed in laser welding. The primary cause of this characteristic microstructure is rapid, localized heating an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f461431e3c1a1278e4e6871a3f5d8cc9
http://www.sciencedirect.com/science/article/pii/S0264127520305219
http://www.sciencedirect.com/science/article/pii/S0264127520305219
Autor:
Darren C. Pagan, Bjørn Clausen, Wayne E. King, Lyle E. Levine, N.E. Hodge, Thien Q. Phan, Maria Strantza, Donald W. Brown, R.K. Ganeriwala
Publikováno v:
Materials Letters. 231:221-224
The production of metallic parts via laser-powder bed fusion (L-PBF) additive manufacturing is rapidly growing. To use components produced via L-PBF in safety-critical applications, a high degree of confidence is required in their quality. This quali
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7393a38f457a7916f02ceb947a18e605
https://doi.org/10.1016/j.matlet.2018.07.141
https://doi.org/10.1016/j.matlet.2018.07.141
Publikováno v:
Additive Manufacturing. 46:102158
When tungsten is processed by laser powder bed fusion additive manufacturing, the combination of high residual stresses and tungsten’s inherent ductile-to-brittle transition leads to a network of microcracks. While preheating is widely accepted as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5826d37f4bfdf12f0880ae7769ac5d7
https://doi.org/10.1016/j.addma.2021.102158
https://doi.org/10.1016/j.addma.2021.102158
Publikováno v:
Additive Manufacturing. 45:102015
Scan pattern dependent (multi-track) residual stress buildup over multiple layers in the powder bed fusion process is governed by coupled thermo-mechanics. The high computational cost associated with these simulations has resulted in the general adop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8216faf8354b4fc9ae57b0935e96e048
https://doi.org/10.1016/j.addma.2021.102015
https://doi.org/10.1016/j.addma.2021.102015