Search Results - "Escano, Luis I"

Controlling process instability for defect lean metal additive manufacturing by Qu, Minglei, Guo, Qilin, Escano, Luis I., Nabaa, Ali, Hojjatzadeh, S. Mohammad H., Young, Zachary A., Chen, Lianyi

“…The process instabilities intrinsic to the localized laser-powder bed interaction cause the formation of various defects in laser powder bed fusion (LPBF)…”
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Transient dynamics of powder spattering in laser powder bed fusion additive manufacturing process revealed by in-situ high-speed high-energy x-ray imaging by Guo, Qilin, Zhao, Cang, Escano, Luis I., Young, Zachary, Xiong, Lianghua, Fezzaa, Kamel, Everhart, Wes, Brown, Ben, Sun, Tao, Chen, Lianyi

“…Powder spattering is a major cause of defect formation and quality uncertainty in the laser powder bed fusion (LPBF) additive manufacturing (AM) process. It is…”
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Direct observation of pore formation mechanisms during LPBF additive manufacturing process and high energy density laser welding by Hojjatzadeh, S. Mohammad H., Parab, Niranjan D., Guo, Qilin, Qu, Minglei, Xiong, Lianghua, Zhao, Cang, Escano, Luis I., Fezzaa, Kamel, Everhart, Wes, Sun, Tao, Chen, Lianyi

“…Laser powder bed fusion (LPBF) is a 3D printing technology that can print parts with complex geometries that are unachievable by conventional manufacturing…”
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Pore elimination mechanisms during 3D printing of metals by Hojjatzadeh, S. Mohammad H., Parab, Niranjan D., Yan, Wentao, Guo, Qilin, Xiong, Lianghua, Zhao, Cang, Qu, Minglei, Escano, Luis I., Xiao, Xianghui, Fezzaa, Kamel, Everhart, Wes, Sun, Tao, Chen, Lianyi

“…Laser powder bed fusion (LPBF) is a 3D printing technology that can print metal parts with complex geometries without the design constraints of traditional…”
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Revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging by Escano, Luis I., Parab, Niranjan D., Xiong, Lianghua, Guo, Qilin, Zhao, Cang, Fezzaa, Kamel, Everhart, Wes, Sun, Tao, Chen, Lianyi

“…Powder spreading is a key step in the powder-bed-based additive manufacturing process, which determines the quality of the powder bed and, consequently,…”
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Publisher Correction: Controlling process instability for defect lean metal additive manufacturing by Qu, Minglei, Guo, Qilin, Escano, Luis I., Nabaa, Ali, Hojjatzadeh, S. Mohammad H., Young, Zachary A., Chen, Lianyi

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Effects of Particle Size Distribution with Efficient Packing on Powder Flowability and Selective Laser Melting Process by Young, Zachary, Qu, Minglei, Coday, Meelap Michael, Guo, Qilin, Hojjatzadeh, Seyed Mohammad H, Escano, Luis I, Fezzaa, Kamel, Chen, Lianyi

“…The powder bed-based additive manufacturing (AM) process contains uncertainties in the powder spreading process and powder bed quality, leading to problems in…”
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In-Situ Characterization of Pore Formation Dynamics in Pulsed Wave Laser Powder Bed Fusion by Hojjatzadeh, S. Mohammad H., Guo, Qilin, Parab, Niranjan D., Qu, Minglei, Escano, Luis I., Fezzaa, Kamel, Everhart, Wes, Sun, Tao, Chen, Lianyi

“…Laser powder bed fusion (LPBF) is an additive manufacturing technology with the capability of printing complex metal parts directly from digital models…”
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Uncertainties Induced by Processing Parameter Variation in Selective Laser Melting of Ti6Al4V Revealed by In-Situ X-ray Imaging by Young, Zachary A, Coday, Meelap M, Guo, Qilin, Qu, Minglei, Hojjatzadeh, S Mohammad H, Escano, Luis I, Fezzaa, Kamel, Sun, Tao, Chen, Lianyi

“…Selective laser melting (SLM) additive manufacturing (AM) exhibits uncertainties, where variations in build quality are present despite utilizing the same…”
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Publisher Correction: Pore elimination mechanisms during 3D printing of metals by Hojjatzadeh, S. Mohammad H., Parab, Niranjan D., Yan, Wentao, Guo, Qilin, Xiong, Lianghua, Zhao, Cang, Qu, Minglei, Escano, Luis I., Xiao, Xianghui, Fezzaa, Kamel, Everhart, Wes, Sun, Tao, Chen, Lianyi

“…An amendment to this paper has been published and can be accessed via a link at the top of the paper…”
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Ultrafast X‐ray imaging of laser–metal additive manufacturing processes by Parab, Niranjan D., Zhao, Cang, Cunningham, Ross, Escano, Luis I., Fezzaa, Kamel, Everhart, Wes, Rollett, Anthony D., Chen, Lianyi, Sun, Tao

“…The high‐speed synchrotron X‐ray imaging technique was synchronized with a custom‐built laser‐melting setup to capture the dynamics of laser powder‐bed fusion…”
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In-situ full-field mapping of melt flow dynamics in laser metal additive manufacturing by Guo, Qilin, Zhao, Cang, Qu, Minglei, Xiong, Lianghua, Hojjatzadeh, S. Mohammad H., Escano, Luis I., Parab, Niranjan D., Fezzaa, Kamel, Sun, Tao, Chen, Lianyi

“…•Developed the full-field melt flow mapping approach to study melt flow dynamics under additive manufacturing conditions.•Revealed the location-specific flow…”
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Time-resolved absorption spectroscopy in electron beam melting with blue vertical-cavity surface-emitting lasers by Beuting, Matthias, Escano, Luis I, Chen, Lianyi, Sanders, Scott T

“…This paper addresses the challenge of understanding the dynamics of the interaction between partially evaporated metal and the liquid metal melt pool in…”
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Mitigating keyhole pore formation by nanoparticles during laser powder bed fusion additive manufacturing by Qu, Minglei, Guo, Qilin, Escano, Luis I., Clark, Samuel J., Fezzaa, Kamel, Chen, Lianyi

“…•Developed a novel approach of using nanoparticles to mitigate keyhole pore.•Identified the underlying mechanisms for keyhole pore mitigation.•Revealed effects…”
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Revealing melt flow instabilities in laser powder bed fusion additive manufacturing of aluminum alloy via in-situ high-speed X-ray imaging by Guo, Qilin, Qu, Minglei, Escano, Luis I., Hojjatzadeh, S. Mohammad H., Young, Zachary, Fezzaa, Kamel, Chen, Lianyi

“…Laser metal additive manufacturing technologies enable the fabrication of geometrically and compositionally complex parts unachievable by conventional…”
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In-situ characterization of defect formation and elimination dynamics during electron beam melting using high-speed X-ray imaging by Yuan, Jiandong, Escano, Luis I., Clark, Samuel J., Huang, Junye, Nabaa, Ali, Guo, Qilin, Qu, Minglei, Fezzaa, Kamel, Chen, Lianyi

“…•Directly observed defect formation and elimination dynamics in electron beam melting.•Revealed pore formation mechanisms from feedstock powders, pre-existing…”
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Investigating Powder Spreading Dynamics in Additive Manufacturing Processes by In-situ High-speed X-ray Imaging by Escano, Luis I., Parab, Niranjan D., Xiong, Lianghua, Guo, Qilin, Zhao, Cang, Sun, Tao, Chen, Lianyi

“…The quality of the powder bed is known to be one of the main factors that influence the quality of the part being manufactured by powderbed- based additive…”
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High-speed Synchrotron X-ray Imaging of Laser Powder Bed Fusion Process by Parab, Niranjan D., Zhao, Cang, Cunningham, Ross, Escano, Luis I., Gould, Benjamin, Wolff, Sarah, Guo, Qilin, Xiong, Lianghua, Kantzos, Christopher, Pauza, Joseph, Fezzaa, Kamel, Greco, Aaron, Rollett, Anthony, Chen, Lianyi, Sun, Tao

“…In additive manufacturing (AM) processes, materials are selectively added in layer-wise fashion to build three-dimensional objects. This approach provides…”
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An electron beam melting system for in-situ synchrotron X-ray monitoring by Escano, Luis I., Clark, Samuel J., Chuang, Andrew C., Yuan, Jiandong, Guo, Qilin, Qu, Minglei, Dong, William, Zhang, Xinhang, Huang, Junye, Fezzaa, Kamel, Kenesei, Peter, Walker, Brandon J., Sun, Tao, Eliceiri, Kevin W., Chen, Lianyi

“…•Developed an electron beam melting system for in-situ synchrotron x-ray imaging and diffraction.•Demonstrated the feasibility of using in-situ x-ray imaging…”
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Types of spatter and their features and formation mechanisms in laser powder bed fusion additive manufacturing process by Young, Zachary A., Guo, Qilin, Parab, Niranjan D., Zhao, Cang, Qu, Minglei, Escano, Luis I., Fezzaa, Kamel, Everhart, Wes, Sun, Tao, Chen, Lianyi

“…•Identified five types of spatter and their formation mechanisms in LPBF.•Quantified the features of different types of spatter.•Revealed the effects of laser…”
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