2025/08 Our proposal has been awarded by the National Science Foundation (NSF), CMMI-Advanced Manufacturing, MRI: Development of Metal 3D Printing Research Instrument with In-situ Characterization and Closed-loop Control Capability (#2510152), PI lead, 2025-2029.

2025/07 New paper has been accepted ”Defect Mitigation for Robot Arm-Based Additive Manufacturing Utilizing Intelligent Control and Iot." #IMECE2025-165948. It will be presented at ASME International Mechanical Engineering Congress & Exposition (IMECE 2025), Memphis, TN, USA. 

2025/07 New paper has been published. Liu, Sen, et al. "Real-time Tracking and Analysis of Gas Bubble Dynamics in Laser Powder Bed Fusion Using In-situ X-ray Characterization and Machine Learning." Additive Manufacturing (2025): 104921. (IF: 11.1) https://doi.org/10.1016/j.addma.2025.104921

2025/04 Dr. Liu was invited by the ASM International SMST society to give a seminar presentation “Shape Memory Alloys State of the Art: Design with the Hottest Buzzwords – Machine Learning and Additive Manufacturing”.

2025/05 Graduate student Matsive Ali presented his conference paper “Digital Twin Synchronization: Bridging the Sim-RL Agent to a Real-Time Robotic Additive Manufacturing Control” at IEEE International Conference on Engineering Reliable Autonomous Systems (ERAS-25), Accepted. Worcester, MA, USA. 

2025/03 New paper has been published, Z. Taylor, T. Reddy, ...  S. Liu, D. Pal, L. Moghimi, C. Tassone, L. Dresselhaus-Marais, High-resolution in situ characterization of laser powder bed fusion via transmission X-ray microscopy at X-ray free-electron lasers. Journal of Synchrotron Radiation, (2025). 32. https://doi.org/10.1107/S1600577525001675 

2025/03 Our proposal has been funded by NSF FUEL Seed Fund subrecipient to LSU NSF-2315727, Advancing Metal Additive Manufacturing Technologies and Workforce Development for Sustainable Manufacturing and Energy Transition at Louisiana, PI, 2025-2026.

2025/03 Dr. Liu presented his research to undergraduate students on "Metal 3D Printing Design with Hottest Buzzwords – Machine Learning, In-situ Characterization and Robotic Control " under the support of the NSF Louis Stokes-Louisiana Alliance for Minority Participation (LS-LAMP) program. 

2025/03 PhD student Sandesh Giri presented his research “In-Situ Sensor Monitoring and Multiclass Porosity Defects Prediction for Laser Powder Bed Fusion With Machine Learning” at TMS 2025, Las Vegas, NV, USA.

2025/03 Graduate student Matsive Ali presented his research “Study of Cracking Initiation and Evolution Dynamics with In-Situ X-Ray Imaging and Automated Machine Learning” at TMS 2025, Las Vegas, NV, USA.

2025/03 PhD student Amin Mianjy presented his poster “Binder Jet Powder-Based 3D Printing of 17-4 Stainless Steel with Comprehensive Property Characterization” at TMS 2025, Las Vegas, NV, USA.

2025/03 PhD student Amin Mianjy‘s Paper entitled “Effects of Part Size on Densification and Microstructure of 17-4 PH Stainless Steel Printed by Binder Jetting Additive Manufacturing” has been accepted for SME NAMRC 53rd/ASME MSEC 2025, Greenville, SC, USA. 

It will be published in the special issue of the journal Manufacturing Letters.

2025/03 Graduate student Matsive Ali presented our research “Digital Twin Synchronization for Real-Time Process Control Using Sim-RL in Smart Additive Manufacturing” at AAAI 2025 CMASDL Workshop, Philadelphia, PA, USA.

2024/08 Two papers published in Applied Physics Letters in collaboration with Lawrence Livermore National Laboratory and SLAC National Laboratory

Applied Physics Letters 125.6 (2024)

Applied Physics Letters 125.3 (2024)

2024/07 PhD student Sandesh Giri received NSF Student Registration Award for 35th Annual International Solid Freeform Fabrication Symposium, for his conference presentation “In-situ sensor monitoring for defect prediction during metal 3D-printing of aluminum alloy using convolutional neural networks” , Austin, TX, USA. 

2024/06 Proposal has been awarded by EPSCoR LAMDA Seed Fund Track 1 from the Louisiana Board of Regents under Cooperative Agreement Number NSF OIA-1946231, Binder Jetting Metal Additive Manufacturing of Stainless Steel - Physical Property Quantification and Machine Learning, Single PI, 2024-2025. 

2024/05 Dr. Qin Yang, the assistant professor at Bradley University, IL visited the laboratory and presented his research “Hierarchical Needs-driven Self-adaptive Multi-Agent Systems: From Individual Needs To Swarm Intelligence”

2024/05 Proposal has been funded by Board of Regents Support Fund (BoRSF), Research Competitiveness Subprogram (RCS) program, Energy Driven In-situ Alloying and Multiphysics Control Pathways, Single PI, 2024-2027. 

2024/05 Proposal has been funded by the Louisiana Transportation Research Center TIRE Program, Using Metal 3D Printing to Increase Quality and Resource-efficiency of Construction Materials, Single PI, 2024-2025. 

2024/04 Dr. Liu led one research lab tour for high school students to demonstrate the robotic metal AM system at the annual E&T week, which features diverse presentations and competitions from students, faculty, alumni, and industry, to increase research interest in STEM and impact in the community 

2024/04 PhD student Sandesh Giri presented his research at the 2024 NSF TRIMMING CO2 Annual Meeting, entitled "Machine Learning Guided Microstructural Analysis by Integrating In-situ and Ex-situ Characterization Technologies"

2023/11 We have performed the world-first in-situ X-ray free-electron laser (XFEL) transmission X-ray microscopy for metal laser 3D printing in collaboration with Stanford University (Leora Dresselhaus-Marais group) and SLAC National Accelerator Laboratory (Christopher Tassone group) at Linac Coherent Light Source (LCLS) “L-10046: Resolving the Origin of Defects in Metal 3D Printing”, to characterize of defects formation at sub-micron and nano-second time scales.