Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.4
2.9
Journals
Metals
Special Issues
Metal Additive Manufacturing Technologies
share announcement

Metal Additive Manufacturing Technologies

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

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 3756

Special Issue Editor

Dr. Chun Guo

E-Mail Website
Guest Editor
College of Mechanical Engineering, Anhui Science and Technology University, Bengbu 233100, China
Interests: additive manufacturing; laser technique; welding; surface engineering

Special Issue Information

Dear Colleagues,

At present, the global manufacturing industry is undergoing profound changes. Additive manufacturing (3D printing) technology has developed into a core technology for improving the design and manufacture of high-performance complex components, with constantly advancing engineering applications in aerospace, biomedical, energy, transportation, national defense and other fields. At present, the innovative development of metal additive manufacturing technology integrates new materials, innovative structure design, integral component manufacturing, multifunctional integration, additive manufacturing process synthesis and intelligent printing. Opportunities and challenges coexist. In the process of innovation and leapfrog development of metal additive manufacturing technology, there are many key scientific and technical problems that require further research and breakthroughs. These problems include, but are not limited to, material design and interface control problems in the transition from single-material printing to multi-material printing and from simple structure printing to multi-functional complex overall structure printing; structural design and print quality control problems; traditional trial-and-error process development and precise process control problem intelligent printing. Progress in the innovative development, technological progress and large-scale industrial application of metal additive manufacturing technology necessitates a series of new principles, methods, materials, processes and technologies.

Dr. Chun Guo
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. 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

  • 3D printing

  • laser additive manufacturing
  • wire arc additive manufacturing
  • electron beam additive manufacturing
  • materials
  • microstructure
  • key properties
  • optimization of processing

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

16 pages, 5975 KiB  
Article
Material Health of NiCrBSi Alloy Parts Produced via the Laser Powder Bed Fusion Process
by Anthony Ty, Yannick Balcaen, Morgane Mokhtari, Jordan Rigaud, Olivier Dalverny and Joël Alexis
Metals 2023, 13(10), 1669; https://doi.org/10.3390/met13101669 - 29 Sep 2023
Viewed by 1371
Abstract
Laser powder bed fusion (L-PBF) is a novel process representing a possible solution for producing resistant parts using NiCrBSi hard-facing nickel alloys with complex geometry. Process parameters for more common alloys are explored with a standard Renishaw AM400 device (Renishaw, Wotton-under-Edge, UK) and [...] Read more.
Laser powder bed fusion (L-PBF) is a novel process representing a possible solution for producing resistant parts using NiCrBSi hard-facing nickel alloys with complex geometry. Process parameters for more common alloys are explored with a standard Renishaw AM400 device (Renishaw, Wotton-under-Edge, UK) and an SLM Solution 250 device (SLM Solutions Group AG, Lübeck, Germany) modified with a baseplate preheated at high temperatures (300 °C and 500 °C). Laser remelting is also investigated in hopes of further improving material health. The origin of the main defects is studied. A lack of fusion is likely to be generated by spatters ejected from the melting pool while cracks are induced by the alloy’s lack of toughness. Using image analyses, those defects are quantified and correlated with processing parameters. Lack of fusion and total crack length decrease with an increase in baseplate’s preheating temperature. However, crack width increases with preheating temperature. Therefore, via a careful optimization of process parameters, samples with a surface density of 99% and narrow cracks are obtained. Full article
(This article belongs to the Special Issue Metal Additive Manufacturing Technologies)
►▼ Show Figures

Figure 1

14 pages, 3868 KiB  
Article
Influence of In Situ Magnetic Field on Magnetic Properties of a Bonded Permanent Magnet Manufactured through Material Extrusion Additive Manufacturing
by Ji Yong Hwang, Seong Je Park, Yong Son and Hyo Yun Jung
Metals 2023, 13(10), 1653; https://doi.org/10.3390/met13101653 - 27 Sep 2023
Viewed by 872
Abstract
In this study, a material extrusion (MEX) nozzle for fabricating bond magnets was designed to form a unidirectional magnetic field with a solenoid. The hard magnetic properties of the bonded magnets were enhanced by induced magnetic anisotropy. The magnetic field strength for magnetic [...] Read more.
In this study, a material extrusion (MEX) nozzle for fabricating bond magnets was designed to form a unidirectional magnetic field with a solenoid. The hard magnetic properties of the bonded magnets were enhanced by induced magnetic anisotropy. The magnetic field strength for magnetic alignment was controlled by the current applied to the solenoid, and the magnetic field strength formed at the bottom of the solenoid was approximately 10 mT. When a magnetic field was applied to the magnetic particles in filaments, magnetic spins and domains that existed in spherical magnetic particles were magnetically rotated and preferentially aligned with the induced magnetic field. Subsequently, as the polymer matrix was softened by the heat generated by the current induced in the solenoid, bonded magnets were additively manufactured using MEX with in situ magnetic field, and hard magnetic properties such as coercivity, remanence, and maximum energy product of the manufactured magnets were confirmed to be enhanced. The improvement in hard magnetic properties was attributed to the increased magnetic anisotropy caused by magnetic alignment. Based on the results of this study, we expect MEX with a magnetic field application system to be used in the future for manufacturing complex-shaped bonded magnets with improved magnetic properties. Full article
(This article belongs to the Special Issue Metal Additive Manufacturing Technologies)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop