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Prahalad K. Rao
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Proceedings Papers

A Computational Fluid Dynamics (CFD) Study of Pneumatic Atomization in Aerosol Jet Printing (AJP) Process

Roozbeh (Ross) Salary, Jack P. Lombardi, III, Darshana L. Weerawarne, Prahalad K. Rao, Mark D. Poliks
Proc. ASME. IMECE2019, Volume 2A: Advanced Manufacturing, V02AT02A065, November 11–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2019-12027
https://doi.org/10.1115/IMECE2019-12027
View Paper titled, A Computational Fluid Dynamics (CFD) Study of Pneumatic Atomization in Aerosol Jet Printing (AJP) Process
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Topics: Aerosols, Computational fluid dynamics, Electronics, Manufacturing, Printing
Proceedings Papers

A State-of-the-Art Review on Aerosol Jet Printing (AJP) Additive Manufacturing Process

Roozbeh Ross Salary, Jack P. Lombardi, III, Darshana L. Weerawarne, Prahalad K. Rao, Mark D. Poliks
Proc. ASME. MSEC2019, Volume 1: Additive Manufacturing; Manufacturing Equipment and Systems; Bio and Sustainable Manufacturing, V001T01A035, June 10–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2019-3008
https://doi.org/10.1115/MSEC2019-3008
View Paper titled, A State-of-the-Art Review on Aerosol Jet Printing (AJP) Additive Manufacturing Process
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Topics: Additive manufacturing, Aerosols, Electronics, Manufacturing, Printing
Journal Articles

Stochastic Modeling and Analysis of Spindle Power During Hard Milling With a Focus on Tool Wear

Xingtao Wang, Robert E. Williams, Michael P. Sealy, Prahalad K. Rao, Yuebin Guo
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research-Article
J. Manuf. Sci. Eng. November 2018, 140(11): 111011.
Paper No: MANU-17-1785
https://doi.org/10.1115/1.4040728
Published Online: August 31, 2018
View Article titled, Stochastic Modeling and Analysis of Spindle Power During Hard Milling With a Focus on Tool Wear
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Topics: Cutting, Milling, Modeling, Wear, Machining
Journal Articles

Online Monitoring of Functional Electrical Properties in Aerosol Jet Printing Additive Manufacturing Process Using Shape-From-Shading Image Analysis

Roozbeh (Ross) Salary, Jack P. Lombardi, Prahalad K. Rao, Mark D. Poliks
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research-Article
J. Manuf. Sci. Eng. October 2017, 139(10): 101010.
Paper No: MANU-17-1080
https://doi.org/10.1115/1.4036660
Published Online: August 24, 2017
View Article titled, Online Monitoring of Functional Electrical Properties in Aerosol Jet Printing Additive Manufacturing Process Using Shape-From-Shading Image Analysis
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Topics: Additive manufacturing, Aerosols, Albedo, Electrical properties, Gas flow, Nozzles, Printing, Reflectance, Shades and shadows, Shapes
Journal Articles

Multi-Objective Accelerated Process Optimization of Part Geometric Accuracy in Additive Manufacturing

Amir M. Aboutaleb, Mark A. Tschopp, Prahalad K. Rao, Linkan Bian
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research-Article
J. Manuf. Sci. Eng. October 2017, 139(10): 101001.
Paper No: MANU-16-1656
https://doi.org/10.1115/1.4037319
Published Online: August 24, 2017
View Article titled, Multi-Objective Accelerated Process Optimization of Part Geometric Accuracy in Additive Manufacturing
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Topics: Design, Optimization, Pareto optimization, Additive manufacturing
Proceedings Papers

Accelerated Geometry Accuracy Optimization of Additive Manufacturing Parts

Amir M. Aboutaleb, Linkan Bian, Prahalad K. Rao, Mark A. Tschopp
Proc. ASME. MSEC2017, Volume 2: Additive Manufacturing; Materials, V002T01A043, June 4–8, 2017
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2017-2892
https://doi.org/10.1115/MSEC2017-2892
View Paper titled, Accelerated Geometry Accuracy Optimization of Additive Manufacturing Parts
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Topics: Additive manufacturing, Geometry, Optimization, Cutting, Geometric dimensioning and tolerancing, Manufacturing, Mechanical properties, Pareto optimization, Principal component analysis, Simulation
Proceedings Papers

Additive Manufacturing (AM) of Flexible Electronic Devices: Online Monitoring of 3D Line Topology in Aerosol Jet Printing Process Using Shape-From-Shading (SfS) Image Analysis

Roozbeh (Ross) Salary, Jack P. Lombardi, Prahalad K. Rao, Mark D. Poliks
Proc. ASME. MSEC2017, Volume 2: Additive Manufacturing; Materials, V002T01A046, June 4–8, 2017
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2017-2947
https://doi.org/10.1115/MSEC2017-2947
View Paper titled, Additive Manufacturing (AM) of Flexible Electronic Devices: Online Monitoring of 3D Line Topology in Aerosol Jet Printing Process Using Shape-From-Shading (SfS) Image Analysis
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Topics: Additive manufacturing, Aerosols, Flexible electronics, Printing, Shades and shadows, Shapes, Topology, Algorithms, Performance characterization, Resolution (Optics)
Proceedings Papers

Assessing the Geometric Integrity of Additive Manufactured Parts From Point Cloud Data Using Spectral Graph Theoretic Sparse Representation-Based Classification

M. Samie Tootooni, Ashley Dsouza, Ryan Donovan, Prahalad K. Rao, Zhenyu (James) Kong, Peter Borgesen
Proc. ASME. MSEC2017, Volume 2: Additive Manufacturing; Materials, V002T01A042, June 4–8, 2017
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2017-2794
https://doi.org/10.1115/MSEC2017-2794
View Paper titled, Assessing the Geometric Integrity of Additive Manufactured Parts From Point Cloud Data Using Spectral Graph Theoretic Sparse Representation-Based Classification
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Topics: Additive manufacturing, Lasers, Extruding, Temperature, Eigenvalues, Experimental design, Geometric dimensioning and tolerancing, Geometry, Manufacturing, Modeling
Journal Articles

Classifying the Dimensional Variation in Additive Manufactured Parts From Laser-Scanned Three-Dimensional Point Cloud Data Using Machine Learning Approaches

M. Samie Tootooni, Ashley Dsouza, Ryan Donovan, Prahalad K. Rao, Zhenyu (James) Kong, Peter Borgesen
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research-Article
J. Manuf. Sci. Eng. September 2017, 139(9): 091005.
Paper No: MANU-17-1073
https://doi.org/10.1115/1.4036641
Published Online: June 22, 2017
View Article titled, Classifying the Dimensional Variation in Additive Manufactured Parts From Laser-Scanned Three-Dimensional Point Cloud Data Using Machine Learning Approaches
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Topics: Additive manufacturing, Design, Eigenvalues, Lasers, Machine learning
Journal Articles

Computational Fluid Dynamics Modeling and Online Monitoring of Aerosol Jet Printing Process

Roozbeh (Ross) Salary, Jack P. Lombardi, M. Samie Tootooni, Ryan Donovan, Prahalad K. Rao, Peter Borgesen, Mark D. Poliks
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research-Article
J. Manuf. Sci. Eng. February 2017, 139(2): 021015.
Paper No: MANU-16-1239
https://doi.org/10.1115/1.4034591
Published Online: October 3, 2016
View Article titled, Computational Fluid Dynamics Modeling and Online Monitoring of Aerosol Jet Printing Process
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Topics: Aerosols, Computational fluid dynamics, Density, Flow (Dynamics), Gas flow, Modeling, Simulation, Printing, Nozzles, Geometry
Proceedings Papers

Three Dimensional Point Cloud Measurement Based Dimensional Integrity Assessment for Additive Manufactured Parts Using Spectral Graph Theory

Prahalad K. Rao, Zhenyu Kong, Chad E. Duty, Rachel J. Smith
Proc. ASME. MSEC2016, Volume 2: Materials; Biomanufacturing; Properties, Applications and Systems; Sustainable Manufacturing, V002T04A048, June 27–July 1, 2016
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2016-8516
https://doi.org/10.1115/MSEC2016-8516
View Paper titled, Three Dimensional Point Cloud Measurement Based Dimensional Integrity Assessment for Additive Manufactured Parts Using Spectral Graph Theory
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Topics: Additive manufacturing, Geometry, Quality control
Proceedings Papers

In Situ Sensor-Based Monitoring and Computational Fluid Dynamics (CFD) Modeling of Aerosol Jet Printing (AJP) Process

Roozbeh (Ross) Salary, Jack P. Lombardi, M. Samie Tootooni, Ryan Donovan, Prahalad K. Rao, Mark D. Poliks
Proc. ASME. MSEC2016, Volume 2: Materials; Biomanufacturing; Properties, Applications and Systems; Sustainable Manufacturing, V002T04A049, June 27–July 1, 2016
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2016-8535
https://doi.org/10.1115/MSEC2016-8535
View Paper titled, In Situ Sensor-Based Monitoring and Computational Fluid Dynamics (CFD) Modeling of Aerosol Jet Printing (AJP) Process
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Topics: Aerosols, Computational fluid dynamics, Modeling, Printing, Sensors, Image processing, Corrective actions, Density, Gas flow, Nozzles
Journal Articles

Assessment of Dimensional Integrity and Spatial Defect Localization in Additive Manufacturing Using Spectral Graph Theory

Prahalad K. Rao, Zhenyu Kong, Chad E. Duty, Rachel J. Smith, Vlastimil Kunc, Lonnie J. Love
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research-Article
J. Manuf. Sci. Eng. May 2016, 138(5): 051007.
Paper No: MANU-15-1093
https://doi.org/10.1115/1.4031574
Published Online: November 19, 2015
View Article titled, Assessment of Dimensional Integrity and Spatial Defect Localization in Additive Manufacturing Using Spectral Graph Theory
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Topics: Additive manufacturing, Dimensions, Errors, Geometry, Lasers, Manufacturing, Quality control, Mining, Metrology, Computer-aided design
Proceedings Papers

Sensor-Based Online Process Fault Detection in Additive Manufacturing

Prahalad K. Rao, Jia (Peter) Liu, David Roberson, Zhenyu (James) Kong
Proc. ASME. MSEC2015, Volume 2: Materials; Biomanufacturing; Properties, Applications and Systems; Sustainable Manufacturing, V002T04A010, June 8–12, 2015
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2015-9389
https://doi.org/10.1115/MSEC2015-9389
View Paper titled, Sensor-Based Online Process Fault Detection in Additive Manufacturing
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Topics: Additive manufacturing, Flaw detection, Sensors, Accelerometers, Accuracy and precision, Artificial neural networks, Decision making, Failure, Failure mechanisms, Machinery
Journal Articles

Online Real-Time Quality Monitoring in Additive Manufacturing Processes Using Heterogeneous Sensors

Prahalad K. Rao, Jia (Peter) Liu, David Roberson, Zhenyu (James) Kong, Christopher Williams
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research-Article
J. Manuf. Sci. Eng. December 2015, 137(6): 061007.
Paper No: MANU-14-1480
https://doi.org/10.1115/1.4029823
Published Online: September 9, 2015
View Article titled, Online Real-Time Quality Monitoring in Additive Manufacturing Processes Using Heterogeneous Sensors
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Topics: Failure, Sensors, Temperature, Machinery, Additive manufacturing