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Advances in Additive Manufacturing: Materials, Processes, and Applications

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

Deadline for manuscript submissions: 31 August 2025 | Viewed by 592

Special Issue Editors


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Guest Editor
Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore
Interests: laser–materials interactions; laser-based advanced manufacturing; powder bed fusion; additive manufacturing; 3D printing
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Guest Editor
Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore
Interests: additive manufacturing; laser powder bed fusion; in situ alloying of elemental powder blends; material design and process optimization; phase equilibria and phase transformations

E-Mail Website
Guest Editor
Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore
Interests: additive manufacturing; laser powder bed fusion; laser-directed energy deposition; machine learning; alloy design; process optimization; integrated computational materials engineering

Special Issue Information

Dear Colleagues,

Additive manufacturing (AM), also known as 3D printing, has undergone rapid advancements in recent years, revolutionizing industries such as aerospace, healthcare, energy, and automotives. These advancements span across material development, process innovation, and novel applications, enabling AM to move beyond prototyping into full-scale manufacturing.

The continuous evolution of AM has led to the development of novel materials, enhanced processing techniques, and improved quality control measures. Furthermore, emerging technologies such as AI-driven material development and process optimization, hybrid manufacturing, and in situ monitoring are transforming the AM landscape, pushing the boundaries of design complexity, mechanical performance, and functional integration.

In this Special Issue, we invite state-of-the-art reviews and original research contributions that explore recent advances in AM materials, processes, and applications. Topics of interest include, but are not limited to, the following:

  • Innovative materials for additive manufacturing (metals, polymers, ceramics, composites, and functionally graded materials);
  • New and hybrid AM processes for enhanced performance, efficiency, and scalability;
  • New applications of AM in the aerospace, biomedical, energy, electronics, and emerging industries;
  • Advanced characterization techniques for AM processes and AM-fabricated materials and structures;
  • Intelligent process optimization and adaptive control strategies (artificial intelligence, machine learning, in situ monitoring, close-loop control, and digital twins);
  • Sustainability and recyclability in AM materials and processes;
  • Advanced simulations for mechanistic study in AM (finite element modeling, computational fluid dynamics, density functional theory, and the calculation of phase diagrams).

This Special Issue aims to provide a comprehensive perspective on the latest developments in AM, promoting discussions that bridge material science, engineering, and industrial applications.

We look forward to your valuable contributions.

Dr. Swee Leong Sing
Dr. Ali Ghasemi
Dr. Jinlong Su
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • additive manufacturing
  • 3D printing
  • metals and alloys
  • ceramics
  • polymers
  • composites
  • novel materials
  • industrial applications
  • process optimization
  • characterization techniques
  • simulations

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Published Papers (1 paper)

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Research

32 pages, 5542 KiB  
Article
Biodegradable Meets Functional: Dual-Nozzle Printing of Eco-Conscious Parklets with Wood-Filled PLA
by Tomasz Jaróg, Mateusz Góra, Michał Góra, Marcin Maroszek, Krzysztof Hodor, Katarzyna Hodor, Marek Hebda and Magdalena Szechyńska-Hebda
Materials 2025, 18(13), 2951; https://doi.org/10.3390/ma18132951 - 22 Jun 2025
Viewed by 411
Abstract
In the face of accelerating urbanization and the growing demand for environmentally responsible materials and designs, this study presents the development and implementation of a modular parklet demonstrator fabricated using dual-material 3D printing. The structure integrates polylactic acid (PLA) and wood-filled PLA (wood/PLA), [...] Read more.
In the face of accelerating urbanization and the growing demand for environmentally responsible materials and designs, this study presents the development and implementation of a modular parklet demonstrator fabricated using dual-material 3D printing. The structure integrates polylactic acid (PLA) and wood-filled PLA (wood/PLA), combining the mechanical robustness of pure PLA in the core with the tactile and aesthetic appeal of wood-based biocomposite on the surface. The newly developed dual-nozzle 3D printing approach enabled precise spatial control over material distribution, optimizing both structural integrity and sustainability. A comprehensive evaluation was conducted for developed filaments and printed materials, including optical microscopy, coupled thermogravimetry analysis and Fourier Transform Infrared Spectroscopy (TG/FTIR), differential scanning calorimetry (DSC), and chemical and mechanical resistance testing. Results revealed distinct thermal behaviors and degradation pathways between filaments and printed parts composed of PLA and PLA/wood. The biocomposite exhibited slightly increased sensitivity to aggressive chemical environments and mechanical wear, dual-material prints maintained high thermal stability and interlayer adhesion. The 3D-printed demonstrator bench and stools were successfully deployed in public spaces as a functional urban intervention. This work demonstrates the feasibility and advantages of using biocomposite materials and dual-head 3D printing for the rapid, local, and sustainable fabrication of small-scale urban infrastructure. Full article
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