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Current and Future Trends in Additive Manufacturing
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Current and Future Trends in Additive Manufacturing

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

Deadline for manuscript submissions: 10 May 2025 | Viewed by 3119

Special Issue Editor

Prof. Dr. Domagoj Vrsaljko

E-Mail Website
Guest Editor
Faculty of Chemical Engineering and Technology, University of Zagreb, HR-10000 Zagreb, Croatia
Interests: additive manufacturing; polymers; polymer composites; chemical engineering;surface properties
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Three-dimensional printing, also known as additive manufacturing, provides an unparalleled possibility to create complex and personalized goods for industrial applications. The current Special Issue "Current and Future Trends in Additive Manufacturing" seeks to advance the dynamic landscape of this disruptive technology. It aims to include a complete examination of the most recent developments, problems, and prospects in the subject. The collection of publications will focus on critical topics such as innovative materials and techniques, process optimization, industrial applications, and sustainability issues.

The authors should consider cutting-edge innovations in additive manufacturing, including advancements in metal, polymer, and composite materials, as well as hybrid manufacturing procedures that combine several production methods. Furthermore, the studies should investigate the impact of artificial intelligence and machine learning in optimizing printing processes, improving part performance, and lowering production costs.

Furthermore, the Special Issue aims to cover the growing number of applications for additive manufacturing in areas such as aerospace, automotive, healthcare, and consumer products. It might also forecast future trends and potential disruptions in the additive manufacturing landscape, offering insights into the direction of research and industry developments in the years ahead.

Prof. Dr. Domagoj Vrsaljko
Guest Editor

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

  • 3D printing
  • additive manufacturing
  • hybrid manufacturing
  • aerospace
  • automotive
  • healthcare
  • design and optimization
  • simulation
  • artificial intelligence

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Published Papers (3 papers)

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Research

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26 pages, 14474 KiB  
Article
Development of a Stable Process for Wire Embedding in Fused Filament Fabrication Printing Using a Geometric Correction Model
by Valentin Wilhelm Mauersberger, Fabian Ziervogel, Linda Weisheit, Lukas Boxberger and Welf-Guntram Drossel
Materials 2025, 18(1), 41; https://doi.org/10.3390/ma18010041 - 26 Dec 2024
Viewed by 622
Abstract
Using a newly developed tool head with an additional rotational axis and a wire feed, wires can be directly processed in the fused filament fabrication (FFF) process. Thus, electrical structures such as conductive paths, coils, heating elements, or sensors can be integrated into [...] Read more.
Using a newly developed tool head with an additional rotational axis and a wire feed, wires can be directly processed in the fused filament fabrication (FFF) process. Thus, electrical structures such as conductive paths, coils, heating elements, or sensors can be integrated into polymer parts. However, the accuracy of the wire deposition in curved sections of the print track is insufficient. To improve the wire position, a geometric correction model was set up, converted into G-code, and validated using test prints for different wire parameters. For this, a sample of printed arcs was evaluated regarding wire position and embedding quality using various visual methods. This also determined the optimal cooling time for the model. The process parameters extrusion coefficient and feed were then varied to identify optimal process parameters for a stable and at the same time efficient process. By varying the wire (copper, constantan) and polymer material (PLA, PETG), the model was checked for general validity. It was found that the position of the ø 0.2 mm wire can be improved with the correction model. Different sets of parameters can be found that enable good quality of embedding and wire position. Full article
(This article belongs to the Special Issue Current and Future Trends in Additive Manufacturing)
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16 pages, 22059 KiB  
Article
Influence of Scanning Strategy on Residual Stresses in Laser-Based Powder Bed Fusion Manufactured Alloy 718: Modeling and Experiments
by Carl-Johan Hassila, Andreas Malmelöv, Carl Andersson, Johan Hektor, Martin Fisk, Andreas Lundbäck and Urban Wiklund
Materials 2024, 17(24), 6265; https://doi.org/10.3390/ma17246265 - 21 Dec 2024
Viewed by 900
Abstract
In additive manufacturing, the presence of residual stresses in produced parts is a well-recognized phenomenon. These residual stresses not only elevate the risk of crack formation but also impose limitations on in-service performance. Moreover, it can distort printed parts if released, or in [...] Read more.
In additive manufacturing, the presence of residual stresses in produced parts is a well-recognized phenomenon. These residual stresses not only elevate the risk of crack formation but also impose limitations on in-service performance. Moreover, it can distort printed parts if released, or in the worst case even cause a build to fail due to collision with the powder scraper. This study introduces a thermo-mechanical finite element model designed to predict the impact of various scanning strategies in order to mitigate the aforementioned unwanted outcomes. The investigation focuses on the deformation and residual stresses of two geometries manufactured by laser-based powder bed fusion (PBF-LB). To account for relaxation effects during the process, a mechanism-based material model has been implemented and used. Additionally, a purely mechanical model, based on the inherent strain method, has been calibrated to account for different scanning strategies. To assess the predicted residual stresses, high-energy synchrotron measurements have been used to obtain values for comparison. The predictions of the models are evaluated, and their accuracy is discussed in terms of the physical aspects of the PBF-LB process. Both the thermo-mechanical models and the inherent strain method capture the trend of experimentally measured residual stress fields. While deformations are also adequately captured, there is an overall underprediction of their magnitude. This work contributes to advancing our understanding of the thermo-mechanical behavior in PBF-LB and provides valuable insights for optimizing scanning strategies in additive manufacturing processes. Full article
(This article belongs to the Special Issue Current and Future Trends in Additive Manufacturing)
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Other

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19 pages, 433 KiB  
Systematic Review
Flexural Strength, Fatigue Behavior, and Microhardness of Three-Dimensional (3D)-Printed Resin Material for Indirect Restorations: A Systematic Review
by Cristian Abad-Coronel, Daniela Durán Urdiales, María Verónica Benalcázar Arias, Andrea Karina Córdova, María Sol Medina and Wilson Bravo Torres
Materials 2025, 18(3), 556; https://doi.org/10.3390/ma18030556 - 26 Jan 2025
Viewed by 1050
Abstract
The purpose of this systematic review was to evaluate three mechanical properties of 3D-printed resins for indirect restorations according to published scientific evidence. This systematic review was conducted according to the PRISMA statement (preferred reporting elements for systematic reviews and meta-analyses). The search [...] Read more.
The purpose of this systematic review was to evaluate three mechanical properties of 3D-printed resins for indirect restorations according to published scientific evidence. This systematic review was conducted according to the PRISMA statement (preferred reporting elements for systematic reviews and meta-analyses). The search was performed by two investigators, (DD) and (VB), and a third (AC) resolved disagreements. Articles were searched in four digital databases: PubMed, EBSCO, Lilacs, and Science Direct, starting on 18 February 2024. As 3D-printing technology has shown significant advances in the last 5 years, the review was conducted with a publication year range between 2019 and 2024, in English language and included in vitro articles on the mechanical properties of flexural strength, fatigue behavior, and microhardness of 3D-printed materials for temporary or definitive restorations. MeSH terms and free terms were used for the titles and abstracts of each article. Finally, the QUIN tool was used to assess the risk of bias. In the main search, 227 articles were found, of which 20 duplicates were excluded, leaving 207 articles; of these, titles and abstracts were read, and 181 that did not meet the eligibility criteria were eliminated; of the remaining 26 articles, 1 article was eliminated for not presenting quantitative results. Regarding publication bias, 6 of the 25 articles had a low risk of bias, 18 had a medium risk of bias, and 1 had a high risk of bias. It may be concluded that 3D-printed resins have lower flexural strength, fatigue behavior, and microhardness than other resin types used for the fabrication of temporary and permanent restorations. The type of 3D printer and polymerization time could be factors that significantly affect the flexural strength, fatigue behavior and microhardness of 3D-printed resins. Based on existing evidence, it should be considered that additive technology has promising future prospects for temporary and permanent dental restorations. Full article
(This article belongs to the Special Issue Current and Future Trends in Additive Manufacturing)
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