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Keywords: thermal modeling
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Proceedings Papers

Predicting Microstructure Evolution in Laser Powder Bed Fusion Additive Manufacturing Using Physics-Based Machine Learning

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Alexander Riensche, Benjamin Bevans, Grant King, Ajay Krishnan, Kevin Cole, Prahalada Rao
Proc. ASME. MSEC2024, Volume 1: Additive Manufacturing; Advanced Materials Manufacturing; Biomanufacturing; Life Cycle Engineering, V001T01A039, June 17–21, 2024
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2024-125230
https://doi.org/10.1115/MSEC2024-125230
... (LPBF) additive manufacturing process. To realize this objective, we developed and applied an approach which combines physics-based thermal modeling with data-driven machine learning to predict two important microstructure-related characteristics in Nickel Alloy 718 LPBF-processed parts: meltpool depth...
View Paper titled, Predicting Microstructure Evolution in Laser Powder Bed Fusion Additive Manufacturing Using Physics-Based Machine Learning
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Topics: Additive manufacturing, Lasers, Machine learning, Modeling, Physics
Proceedings Papers

Brief Paper: Deciphering the Effect of Part Thermal History on Microstructure and Mechanical Properties in Laser Powder Bed Fusion of SS316L

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Kaustubh Deshmukh, Alexander Riensche, Ryan J. Lane, Kyle Snyder, Christopher B. Williams, Reza Mirzaeifar, Prahalada Rao
Proc. ASME. MSEC2024, Volume 1: Additive Manufacturing; Advanced Materials Manufacturing; Biomanufacturing; Life Cycle Engineering, V001T01A012, June 17–21, 2024
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2024-123865
https://doi.org/10.1115/MSEC2024-123865
... by identifying the root fundamental thermal phenomena that influences the microstructure evolution and part properties. metal additive manufacturing laser powder bed fusion microstructure thermal modeling tensile testing Proceedings of the ASME 2024 19th International Manufacturing Science...
View Paper titled, Brief Paper: Deciphering the Effect of Part Thermal History on Microstructure and Mechanical Properties in Laser Powder Bed Fusion of SS316L
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Topics: Lasers, Mechanical properties
Proceedings Papers

Toward Rapid Process Qualification of Laser Powder Bed Fusion: Model Predictive Control of Part Thermal History

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Alexander Riensche, Benjamin Bevans, John Sions, Kyle Snyder, Yuri Plotnikov, Derek Hass, Prahalada Rao
Proc. ASME. MSEC2024, Volume 1: Additive Manufacturing; Advanced Materials Manufacturing; Biomanufacturing; Life Cycle Engineering, V001T01A040, June 17–21, 2024
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2024-125241
https://doi.org/10.1115/MSEC2024-125241
... to overheating and distortion, while mitigating the need for anchoring supports; and (ii) improve surface integrity of hard to access internal surfaces. laser powder bed fusion process control thermal modeling support elimination Proceedings of the ASME 2024 19th International Manufacturing Science...
View Paper titled, Toward Rapid Process Qualification of Laser Powder Bed Fusion: Model Predictive Control of Part Thermal History
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Topics: Lasers, Predictive control
Proceedings Papers

Modeling Maximum Stresses in Each Layer for Layer-by-Layer Deposition of the Direct Metal Laser Sintering Process for Different Scanning Patterns

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Joseph Tang, Hayri Sezer, Nazmul Ahsan, Hossain Ahmed, Sudhir Kaul
Proc. ASME. MSEC2022, Volume 1: Additive Manufacturing; Biomanufacturing; Life Cycle Engineering; Manufacturing Equipment and Automation; Nano/Micro/Meso Manufacturing, V001T01A038, June 27–July 1, 2022
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2022-85777
https://doi.org/10.1115/MSEC2022-85777
... residual stresses thermal modeling Proceedings of the ASME 2022 17th International Manufacturing Science and Engineering Conference MSEC2022 June 27-July 1, 2022, West Lafayette, Indiana, USA MSEC2022-85777 MODELING MAXIMUM STRESSES IN EACH LAYER FOR LAYER-BY-LAYER DEPOSITION OF THE DIRECT METAL LASER...
View Paper titled, Modeling Maximum Stresses in Each Layer for Layer-by-Layer Deposition of the Direct Metal Laser Sintering Process for Different Scanning Patterns
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Topics: Lasers, Metals, Modeling, Sintering, Stress
Proceedings Papers

Thermal Monitoring and Modeling of Ti-6Al-4V Thin Wall Temperature Distribution During Blown Powder Laser Directed Energy Deposition

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Basil J. Paudel, Garrett J. Marshall, Scott M. Thompson
Proc. ASME. MSEC2021, Volume 1: Additive Manufacturing; Advanced Materials Manufacturing; Biomanufacturing; Life Cycle Engineering; Manufacturing Equipment and Automation, V001T01A008, June 21–25, 2021
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2021-63263
https://doi.org/10.1115/MSEC2021-63263
... to their significantly lower thermal capacity. laser engineered net shaping thermal modeling additive manufacturing process simulation Proceedings of the ASME 2021 16th International Manufacturing Science and Engineering Conference MSEC2021 June 21-25, 2021, Virtual, Online MSEC2021-63263 THERMAL MONITORING...
View Paper titled, Thermal Monitoring and Modeling of Ti-6Al-4V Thin Wall Temperature Distribution During Blown Powder Laser Directed Energy Deposition
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Topics: Lasers, Modeling, Temperature distribution, Thin wall structures
Proceedings Papers

Prediction of Melt-Pool Characteristics in SLM Process for Ti6Al4V Using a Semi-Analytical Model

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Shubhra Kamal Nandi, Rakesh Kumar, Anubhav, Anupam Agrawal
Proc. ASME. MSEC2021, Volume 1: Additive Manufacturing; Advanced Materials Manufacturing; Biomanufacturing; Life Cycle Engineering; Manufacturing Equipment and Automation, V001T01A020, June 21–25, 2021
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2021-63751
https://doi.org/10.1115/MSEC2021-63751
... to perform a parametric study. Based on closed-form exact heat conduction solution and Finite Volume Method (FVM), a pseudo-analytical thermal modeling approach has been employed to estimate the melt-pool characteristics and temperature distribution of the SLM process. A moving volumetric Gaussian heat...
View Paper titled, Prediction of Melt-Pool Characteristics in SLM Process for Ti6Al4V Using a Semi-Analytical Model
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Topics: Boundary-value problems, Computer simulation, Convection, Dimensions, Finite volume methods, Geometry, Heat, Heat conduction, Heat losses, Heat transfer
Proceedings Papers

Thermal Modeling in Metal Additive Manufacturing Using Graph Theory: Experimental Validation With In-Situ Infrared Thermography Data From Laser Powder Bed Fusion

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Reza Yavari, Richard Williams, Kevin Cole, Paul Hooper, Prahalad Rao
Proc. ASME. MSEC2020, Volume 1: Additive Manufacturing; Advanced Materials Manufacturing; Biomanufacturing; Life Cycle Engineering; Manufacturing Equipment and Automation, V001T01A028, September 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2020-8433
https://doi.org/10.1115/MSEC2020-8433
... which is well within the actual build time of 171 minutes. additive manufacturing thermal modeling graph theory validation laser powder bed fusion infrared thermal measurements interlayer cooling time THERMAL MODELING IN METAL ADDITIVE MANUFACTURING USING GRAPH THEORY: EXPERIMENTAL...
View Paper titled, Thermal Modeling in Metal Additive Manufacturing Using Graph Theory: Experimental Validation With In-Situ Infrared Thermography Data From Laser Powder Bed Fusion
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Topics: Additive manufacturing, Cooling, Lasers, Metals, Modeling, Thermography
Proceedings Papers

Predicting Part-Level Thermal History in Metal Additive Manufacturing Using Graph Theory: Experimental Validation With Directed Energy Deposition of Titanium Alloy Parts

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Reza Yavari, Jordan Severson, Aniruddha Gaikwad, Kevin Cole, Prahalad Rao
Proc. ASME. MSEC2019, Volume 1: Additive Manufacturing; Manufacturing Equipment and Systems; Bio and Sustainable Manufacturing, V001T01A038, June 10–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2019-3034
https://doi.org/10.1115/MSEC2019-3034
... will focus on validating the model in the context of the laser powder bed fusion process. Keywords: Additive Manufacturing, Directed Energy Deposition, Thermal Modeling, Heat Flux Prediction, Graph Theory. 1 Introduction 1.1 Objective Our previous work outlined the concept of heat diffusion over graphs...
View Paper titled, Predicting Part-Level Thermal History in Metal Additive Manufacturing Using Graph Theory: Experimental Validation With Directed Energy Deposition of Titanium Alloy Parts
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Topics: Additive manufacturing, Heat flux, Metals, Titanium alloys
Proceedings Papers

A Graph Theoretic Approach for Near Real-Time Prediction of Part-Level Thermal History in Metal Additive Manufacturing Processes

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Reza Yavari, Kevin D. Cole, Prahalad Rao
Proc. ASME. MSEC2019, Volume 1: Additive Manufacturing; Manufacturing Equipment and Systems; Bio and Sustainable Manufacturing, V001T01A030, June 10–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2019-2875
https://doi.org/10.1115/MSEC2019-2875
...-based finite element analyses that are computationally tortuous the simulation of a few layers typically requires several hours, if not days. Hence, to alleviate these challenges in metal AM processes, there is a need for efficient computational thermal models to predict the heat flux, and thereby...
View Paper titled, A Graph Theoretic Approach for Near Real-Time Prediction of Part-Level Thermal History in Metal Additive Manufacturing Processes
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Topics: Additive manufacturing, Heat flux, Metals, Theoretical methods
Proceedings Papers

Effect on Flow Stress of a Rapid Phase Transition in AISI 1045 Steel

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Timothy J. Burns, Steven P. Mates, Richard L. Rhorer, Eric P. Whitenton, Debasis Basak
Proc. ASME. MSEC2011, ASME 2011 International Manufacturing Science and Engineering Conference, Volume 1, 261-266, June 13–17, 2011
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2011-50229
https://doi.org/10.1115/MSEC2011-50229
... machining processes. High-speed machining Kolsky bar AISI 1045 steel Thermal modeling Proceedings of the ASME 2011 International Manufacturing Science and Engineering Conference MSEC2011 June 13-17, 2011, Corvallis, Oregon, USA MSEC2011-50229 EFFECT ON FLOW STRESS OF A RAPID PHASE TRANSITION...
View Paper titled, Effect on Flow Stress of a Rapid Phase Transition in AISI 1045 Steel
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Topics: Flow (Dynamics), Machining, Phase transitions, Steel, Stress