Innovations and Challenges in Additive Manufacturing Technologies

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Advanced Manufacturing".

Deadline for manuscript submissions: 30 September 2026 | Viewed by 1901

Special Issue Editors


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Guest Editor
College of Innovation and Technology, Mechanical Engineering, University of Michigan, Flint, MI 48502, USA
Interests: thermal management; CFD; nanotechnology; additive manufacturing; transport in porous media

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Guest Editor
Advanced Manufacturing Lab (AML), College of Engineering, University of Guelph, Guelph, ON N1G 2W1, Canada
Interests: sustainable manufacturing; additive manufacturing; industrial automation; circular economy
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Special Issue Information

Dear Colleagues,

Additive manufacturing (AM) has emerged as a transformative technology with vast potential to revolutionize a wide range of fields within engineering and materials science. Its flexibility and design freedom make it ideal for diverse applications, including tooling and the production of parts, biomedical implants and devices, and aerospace components. AM enables the creation of complex geometries and customized structures that would be challenging or impossible to produce using traditional manufacturing methods.

This Special Issue of Machines aims to present recent advancements in AM, with a particular focus on both experimental and analytical research that targets the achievement of desired material properties and structural geometries. We encourage studies that investigate the influence of process parameters, modeling approaches for predicting outcomes, and strategies for optimizing printing conditions. In addition to technical process improvements, we welcome contributions exploring novel or unconventional applications of AM technologies.

Of special interest are papers addressing additive manufacturing in the following areas:

  • Innovative materials, processes, and machine design;
  • Process modeling, in situ monitoring, and control strategies;
  • Functionally graded materials and advanced alloys;
  • Simulation techniques and multi-scale modeling;
  • Designs for AM, including topology optimization;
  • Development of application-specific, tailored materials.

Dr. Khalil Khanafer
Dr. Ibrahim Deiab
Guest Editors

Manuscript Submission Information

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Keywords

  • additive manufacturing
  • simulation and modeling
  • materials characterization
  • additive manufacturing process

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Published Papers (1 paper)

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Research

13 pages, 1751 KB  
Article
Influence of Carbon Fiber Reinforcement on Mechanical and Thermal Behavior of PLA and PAHT in Additive Manufacturing
by Mamoun Alshihabi, Mahdi El Said, Abdussalam Alshami, Shafahat Ali and Ibrahim Deiab
Machines 2025, 13(11), 985; https://doi.org/10.3390/machines13110985 - 25 Oct 2025
Cited by 1 | Viewed by 1425
Abstract
This study explores the comparative evaluation of PLA, carbon fiber-reinforced PLA (PLA-CF), and carbon fiber-reinforced high-temperature polyamide (PAHT-CF) for use in Fused Deposition Modeling (FDM) additive manufacturing. These materials were selected to examine how carbon fiber (CF) reinforcement affects PLA and PAHT, using [...] Read more.
This study explores the comparative evaluation of PLA, carbon fiber-reinforced PLA (PLA-CF), and carbon fiber-reinforced high-temperature polyamide (PAHT-CF) for use in Fused Deposition Modeling (FDM) additive manufacturing. These materials were selected to examine how carbon fiber (CF) reinforcement affects PLA and PAHT, using virgin PLA as the baseline. Mechanical and thermal properties were tested to assess the influence of reinforcement on strength, toughness, and heat transfer. Tensile, impact, and thermal conductivity tests were conducted on all three materials. The results showed that PAHT-CF outperformed both PLA and PLA-CF in all categories, achieving an ultimate tensile strength of 57.5 MPa, an impact strength of 14.30 kJ/m2, and thermal conductivity of 0.182 W/m·K. PLA-CF showed moderate improvements in strength over neat PLA but with increased brittleness and slight improvement in thermal conductivity. Notably, this is the first study to investigate the thermal conductivity and resistivity of PAHT-CF in the literature, offering new insights into its heat dissipation capabilities and suitability for high-temperature applications. These findings highlight the critical role of polymer selection and fiber reinforcement in optimizing material performance. The results offer guidance for material selection in additive manufacturing, especially for lightweight, strong, and thermally efficient parts in various industries. Full article
(This article belongs to the Special Issue Innovations and Challenges in Additive Manufacturing Technologies)
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