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Laser Powder Bed Fusion Additive Manufacturing: Experimental, Simulation, and Machine Learning

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: closed (20 December 2024) | Viewed by 1472

Special Issue Editors


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Guest Editor
Department of Mechanical Engineering, Southern University and A&M College, Baton Rouge, LA, USA
Interests: laser powder bed fusion; additive friction stir deposition; thermophysical property; thermodynamics modeling; alloy design; machine learning

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Guest Editor
Department of Mechanical & Industrial Engineering, Louisiana State University, Baton Rouge, LA, USA
Interests: additive manufacturing; zinc ion batteries; lithium ion batteries
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Institute for Micromanufacturing, Mechanical Engineering, Louisiana Tech University, Ruston, LA, USA
Interests: laser powder bed fusion; additive manufacturing; solid mechanics; metallic materials; heat transfer; computational fluid dynamics

Special Issue Information

Dear Colleagues,

Laser powder bed fusion (LPBF) additive manufacturing represents a cutting-edge frontier in the field of advanced manufacturing technologies. Distinguished for its precision and versatility, LPBF continues to revolutionize how we approach design and production across various industries. This Special Issue is dedicated to exploring the expansive and dynamic realm of LPBF, highlighting the synergy between experimental methods, simulation techniques, and the burgeoning field of machine learning. 

Key focus areas include the following: (i) Experimental Advancements: This section explores the experimental studies pushing the boundaries of LPBF technology. It covers the latest findings in material properties, process optimization, and novel applications of LPBF in diverse fields. (ii) Simulation Techniques: Recognizing the complexity of LPBF processes, this issue explores advanced simulation models that aid in predicting outcomes, optimizing process parameters, and understanding the intricate thermal and mechanical behaviors during printing. (iii) Machine Learning Integration: At the intersection of LPBF and digital transformation, machine learning emerges as a powerful tool. This section examines how AI algorithms are revolutionizing LPBF processes, from predictive maintenance and quality control to real-time adjustments and process optimization. 

We invite researchers, academics, and industry professionals to contribute their latest research papers, communications, and reviews on the experimental, simulation, and machine learning aspects of LPBF. This issue aims to cover a wide spectrum of topics, including, but not limited to, alloy development, process parameter optimization, microstructure analysis, thermal modeling, and data-driven process control in LPBF.

Dr. Congyuan Zeng
Dr. Wangwang Xu
Dr. Shafiqur Rahman
Guest Editors

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Keywords

laser powder bed fusion

additive manufacturing

experimental study

simulation

machine learning

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Published Papers (1 paper)

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Research

19 pages, 4045 KiB  
Article
Influence of Process Parameters on Flatness During Single-Track Laser Cladding
by Guozheng Quan, Haitao Wang, Wenjing Ran and Fanxin Meng
Materials 2024, 17(21), 5225; https://doi.org/10.3390/ma17215225 - 26 Oct 2024
Viewed by 1092
Abstract
During the laser cladding process, poor flatness of the cladding track can cause the surface structure to be uneven or corrugated, affecting the geometrical accuracy of the workpiece. Adjusting process parameters is an effective way to achieve high cladding track flatness. This study [...] Read more.
During the laser cladding process, poor flatness of the cladding track can cause the surface structure to be uneven or corrugated, affecting the geometrical accuracy of the workpiece. Adjusting process parameters is an effective way to achieve high cladding track flatness. This study established a mesoscale model of the laser cladding process for CoCrMoSi powder to simulate the formation of a single cladding track. Subsequently, the formation mechanism of cladding track flatness was revealed by analyzing the flow within the molten pool and the solidification behavior of the molten pool edge. The influences of laser power, scanning speed, and powder feeding rate on flatness were determined through simulations and physical experiments. Finally, a parameter window of flatness was established using simulation and experimental results. The window indicates that high flatness is achieved with a high scanning speed (v > 260 mm/min), high laser power (P > 2300 W), and low powder feed rate (Pf < 5.5 g/min). The accuracy of the numerical model was verified by comparing the simulated results with the experimental measurements. Full article
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