Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Ross Attardo"'
Autor:
Seunghyun Moon, Ruimin Ma, Ross Attardo, Charles Tomonto, Mark Nordin, Paul Wheelock, Michael Glavicic, Maxwell Layman, Richard Billo, Tengfei Luo
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
Abstract In this study, the effects of surface roughness and pore characteristics on fatigue lives of laser powder bed fusion (LPBF) Ti–6Al–4V parts were investigated. The 197 fatigue bars were printed using the same laser power but with varied s
Externí odkaz:
https://doaj.org/article/f7edcded55be439fb07b898b33464c1e
Autor:
Steven R. Schmid, James McGuffin-Cawley, Charles Tomonto, Jessica Schiltz, Fernando J. Alamos, Ross Attardo, Joseph Budzinski, Tom Pelletiers, Bernice Aboud Gatrell
Publikováno v:
Manufacturing Letters. 31:40-44
Metallic powder reuse is a simple method to significantly reduce material cost for direct metal laser sintering; however, the recycled materials must not produce defects that compromise part performance. In this study, virgin 316L and 17-4PH stainles
Autor:
Charles Tomonto, Ross Attardo, Joseph Budzinski, Fernando J. Alamos, Kirsten Kozlovsky, Jessica Schiltz, Steven R. Schmid, James McGuffin-Cawley, Bernice Aboud Gatrell
Publikováno v:
Procedia Manufacturing. 48:814-820
Though direct cost-savings are attainable with powder reuse in additive manufacturing (AM), the use of non-virgin material has raised concerns over as-built properties. Considerable efforts to validate feedstock recycling have examined static materia
Autor:
Richard E. Billo, Tengfei Luo, Mark Nordin, Paul Wheelock, Charles Tomonto, Ross Attardo, Maxwell Layman, Seunghyun Moon, Michael G. Glavicic, Ruimin Ma
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
In this study, the effects of surface roughness and pore characteristics on fatigue lives of laser powder bed fusion (LPBF) Ti–6Al–4V parts were investigated. The 197 fatigue bars were printed using the same laser power but with varied scanning s
Autor:
Pierre S. Ostiguy, Morteza Ghasri-Khouzani, Hao Peng, David J. Hoelzle, Joel Neidig, Richard E. Billo, Ross Attardo, M.R. Shankar
Publikováno v:
Journal of Manufacturing Processes. 37:274-280
Microstructural analysis and micro-hardness measurements were performed on different planes of AlSi10Mg alloy fabricated by direct metal laser sintering (DMLS) technique. A fine cellular dendritic network was observed within the alloy microstructure,
Autor:
Shan Gong, Joel Neidig, David B. Go, Morteza Ghasri-Khouzani, Bernice Aboud Gatrell, David J. Hoelzle, Charles Tomonto, M. Ravi Shankar, Ross Attardo, Pierre S. Ostiguy, Joseph Budzinski, Richard E. Billo, Hao Peng
Publikováno v:
Additive Manufacturing. 22:852-868
The additive manufacturing (AM) process metal powder bed fusion (PBF) can quickly produce complex parts with mechanical properties comparable to wrought materials. However, thermal stress accumulated during PBF induces part distortion, potentially yi
Autor:
Richard E. Billo, Ross Attardo, Joel Neidig, Hao Peng, Ronald B. Rogge, Pierre S. Ostiguy, Joseph Budzinski, David B. Go, David J. Hoelzle, Charles Tomonto, Shan Gong, M. Ravi Shankar, Bernice Aboud Gatrell, Morteza Ghasri-Khouzani
Publikováno v:
Additive Manufacturing. 22:869-882
The additive manufacturing (AM) process metal powder bed fusion (PBF) can quickly produce complex parts with mechanical properties comparable to that of wrought materials. However, thermal stress accumulated during Metal PBF may induce part distortio
Autor:
Hao Peng, Joel Neidig, Morteza Ghasri-Khouzani, Pierre S. Ostiguy, M.R. Shankar, Richard E. Billo, David J. Hoelzle, Ross Attardo
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 95:4031-4037
Microstructural analysis and micro-hardness measurements were performed on different planes of 316L stainless steel fabricated by direct metal laser sintering (DMLS) technique. A fine cellular network was observed within the steel microstructure, whe
Autor:
Morteza Ghasri-Khouzani, Ronald B. Rogge, Hao Peng, Joel Neidig, Pierre S. Ostiguy, M.R. Shankar, Ross Attardo, Richard E. Billo, David J. Hoelzle
Publikováno v:
Materials Science and Engineering: A. 707:689-700
Disk-shaped 316L stainless steel parts with various diameters and heights were additively manufactured using a direct metal laser sintering (DMLS) technique. Neutron diffraction was used to profile the residual stresses in the samples before and afte
Autor:
Tom Pelletiers, Steven R. Schmid, Jessica Schiltz, Ross Attardo, Charles Tomonto, Kirsten Kozlovsky, Fernando J. Alamos
Publikováno v:
International Journal of Refractory Metals and Hard Materials. 91:105273
Metallic powder reuse presents attractive economic and environmental advantages for direct metal laser sintering (DMLS). However, continuous recycling of powder raises concerns of powder quality and sintered part performance, and complicates process