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Metals
Special Issues
Advances in 3D Printing Technologies of Metals
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Advances in 3D Printing Technologies of Metals

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Additive Manufacturing".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 2223

Special Issue Editors

Dr. Irene Buj Corral

E-Mail Website
Guest Editor
Department of Mechanical Engineering, School of Engineering of Barcelona (ETSEIB), Universitat Politècnica de Catalunya, 08028 Barcelona, Spain
Interests: additive manufacturing; hip prostheses, roughness; porosity; dimensional accuracy; mechanical strength
Special Issues, Collections and Topics in MDPI journals
Dr. Felip Fenollosa-Artés

E-Mail Website
Guest Editor
1.Department of Mechanical Engineering, School of Engineering of Barcelona (ETSEIB), Universitat Politècnica de Catalunya, 08028 Barcelona, Spain
2.CIM UPC Technological Center, 08028 Barcelona, Spain
Interests: 3D printing; additive manufacturing; Industry 4.0; digital manufacturing
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Research into the additive manufacturing (AM) of metals has expanded in recent years, with the aim of obtaining high-strength parts and/or parts with high electrical conductivity and complex shapes.

Metallic AM parts are applied in different sectors, including the automotive, aeronautical, medical, and electronics sectors, among many others.

For this Special Issue, we welcome the submission of articles that focus on the characterization of metallic parts obtained with different additive manufacturing processes, regarding their metallurgy, surface finish, porosity, mechanical properties, geometry features, etc. Topics of interest for the SI include (but are not limited to) the following different AM processes:

  • VAT polymerization techniques such as stereolithography (SL) with metallic-filled resin.
  • Metal binder jetting techniques.
  • Material extrusion techniques such as fused deposition modeling (FDM), also known as fused filament fabrication (FFF) with metal-filled filament, direct ink writing (DIW) with metal-filled inks, solid-state friction welding and Joule printing.
  • Metallic material jetting techniques as nano particle jetting (NPJ), liquid metal 3Dprinting, and supersonic 3D deposition
  • Powder bed fusion techniques such as selective laser melting (SLM), or electron beam melting (EBM).
  • Directed energy deposition processes such as powder DED and wire DED based on different energy sources: wire arc additive manufacturing (WAAM).
  • Other (ultrasonic consolidation, …)

Prof. Irene Buj-Corral
Dr. Felip Fenollosa-Artés
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. Metals is an international peer-reviewed open access monthly 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

  • metal 3D printing
  • vat photopolymerization with metal-filled resins
  • metal binder jetting
  • fused filament fabrication (FFF) with metal-filled filament
  • direct ink writing (DIW) with metal-filled ink
  • selective laser melting (SLM, DLMS, LMF, …)
  • electron beam melting (EBM)
  • wire arc additive manufacturing (WAAM)
  • direct energy deposition (DED)
  • laser engineered net shaping (LENS)

Published Papers (1 paper)

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Research

20 pages, 12354 KiB  
Article
Mechanical Properties and in Vivo Assessment of Electron Beam Melted Porous Structures for Orthopedic Applications
by Yan Wu, Yudong Wang, Mengxing Liu, Dufang Shi, Nan Hu and Wei Feng
Metals 2023, 13(6), 1034; https://doi.org/10.3390/met13061034 - 28 May 2023
Cited by 4 | Viewed by 1547
Abstract
Electron beam melting (EBM) is an additive manufacturing technique with the ability to produce porous implants with desired properties for orthopedic applications. This paper systematically investigated the mechanical properties and in vivo performance of two commonly used stochastic porous structures (the Voronoi structure [...] Read more.
Electron beam melting (EBM) is an additive manufacturing technique with the ability to produce porous implants with desired properties for orthopedic applications. This paper systematically investigated the mechanical properties and in vivo performance of two commonly used stochastic porous structures (the Voronoi structure and the randomized structure) fabricated by the EBM process. The pore geometries of two porous structures were characterized through micro-computed tomography (μCT). In addition, clinically relevant mechanical performances were evaluated for both structures, including tensile testing, shear testing and abrasion resistance testing. In vivo assessment of the two porous structures was further conducted in a dog model for three different follow-up periods. It was found that the Voronoi structures showed a higher mechanical strength compared to the randomized structures, even though both structures exhibited similar pore geometries. Further analysis revealed that the non-uniform stress distribution caused by the sample size and boundary effects led to a decrease in strength in the randomized structures. The in vivo assessments revealed the Voronoi structure exhibited a higher bone ingrowth ratio compared to the randomized structure due to its radially oriented pore geometry and homogenous pore size distribution. This study suggested that the EBM Ti-6Al-4V Voronoi porous structure has favorable mechanical performance and good osseointegration properties for orthopedic implants. Full article
(This article belongs to the Special Issue Advances in 3D Printing Technologies of Metals)
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