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Metals
Special Issues
Laser-Based Additive Manufacturing of Metals and Alloys
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Laser-Based Additive Manufacturing of Metals and Alloys

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

Deadline for manuscript submissions: closed (20 August 2024) | Viewed by 3564

Special Issue Editors

Dr. Mahmoud Moradi

E-Mail Website
Guest Editor
Faculty of Arts, Science and Technology, University of Northampton, Northampton NN1 5PH, UK
Interests: laser materials processing; additive manufacturing; welding; design of experiments (DOE)
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Giuseppe Casalino

E-Mail Website1 Website2
Guest Editor
Department of Mechanics Mathematics Management, Polytechnic University of Bari, 70125 Bari, Italy
Interests: advanced manufacturing; welding and joining; additive manufacturing
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The additive manufacturing (AM) process is considered a new technology with the rapidly changing landscape of manufacturing and is part of a revolution in production industries that is currently taking place. The AM method involves several types for metals and non-metals. Laser energy that is widely used as a tool for manufacturing in industries, which is called laser materials processing, is also used in AM for processes such as selective laser melting (SLM), direct laser metal deposition (DLMD), and selective laser sintering (SLS). AM can be used for producing new parts and for repairing old ones. AM offers several benefits for automation, lowering the cost, rapid prototyping, and customization of composite and complex structures, among other things.

The goal of this Special Issue is to seek high-quality manuscripts detailing research and developments related to laser-based AM. Hybrid techniques always can overcome challenges and are useful in AM. Post-processing of additively manufactured parts is another interesting area.

Dr. Mahmoud Moradi
Prof. Dr. Giuseppe Casalino
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

  • advances in laser additive manufacturing
  • material and process innovation in laser-based AM
  • characterization of AM products fabricated using lasers
  • hybrid–laser AM
  • post-processing of laser-based AM
  • numerical simulation of laser-based AM

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Published Papers (1 paper)

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Research

18 pages, 6720 KiB  
Article
Functionally Graded Additive Manufacturing of Thin-Walled 316L Stainless Steel-Inconel 625 by Direct Laser Metal Deposition Process: Characterization and Evaluation
by Omid Mehrabi, Seyed Mohammad Hossein Seyedkashi and Mahmoud Moradi
Metals 2023, 13(6), 1108; https://doi.org/10.3390/met13061108 - 12 Jun 2023
Cited by 16 | Viewed by 2780
Abstract
Direct Laser Metal Deposition (DLMD) is a state-of-the-art manufacturing technology used to fabricate 316L stainless steel/Inconel 625 functionally graded material (FGMs) in this research. For the practical application of these materials in the industry, the effects of process parameters on the geometric characteristics [...] Read more.
Direct Laser Metal Deposition (DLMD) is a state-of-the-art manufacturing technology used to fabricate 316L stainless steel/Inconel 625 functionally graded material (FGMs) in this research. For the practical application of these materials in the industry, the effects of process parameters on the geometric characteristics and surface roughness require more investigation. This FGM was additively manufactured in five layers by changing the 316L stainless steel/Inconel 625 ratio in each layer. The effects of laser power on geometric characteristics, height stability, and surface roughness were investigated. The microstructural analysis and microhardness profiles were studied. The results show that despite the high solidification rate, the segregation of alloying elements into dendritic areas occurred. It was also found that increasing the laser power will increase the height, width, height stability, and surface roughness of the gradient walls. The maximum width and height of the deposited layers were 1.615 and 6.42 mm, respectively, at the highest laser power (280 W). At the laser power of 220 W, the least surface roughness (Ra = 105 µm) and the best height stability (0.461 mm) will be obtained. The microhardness values will differ in various sections of the gradient walls in a range of 225–277 HV. Full article
(This article belongs to the Special Issue Laser-Based Additive Manufacturing of Metals and Alloys)
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