Laser Additive Manufacturing: Materials, Technologies, and Applications

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Laser Coatings".

Deadline for manuscript submissions: 30 October 2024 | Viewed by 643

Special Issue Editor


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Guest Editor
State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China
Interests: laser additive manufacturing; wire arc additive manufacturing; friction stir additive manufacturing
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Special Issue Information

Dear Colleagues,

In recent years, rapid developments in laser additive manufacturing have been applied for the direct fabrications of metallic and non-metallic products with high flexibility and productivity in different fields. This is a revolutionary manufacturing process that fabricates continuum objects layer by layer using digital models or computer-aided design (CAD) data. What makes this process different from the conventional methods are the quick cooling rate and remelting/reheating phenomenon, which lead to different microstructural evolutions, which can be associated with the material types used, the designed process controls, and the complex geometries of objects.

This Special Issue is devoted to publishing original research and review articles which focus on all aspects of laser additive manufacturing. The topics of interest include, but are not limited to, the following:

  • Solidification on solid–liquid interfaces in laser additive manufacturing;
  • Processes for laser deposition repairing and modification;
  • Processes for laser-arc hybrid additive manufacturing;
  • Wear, corrosion, and erosion in laser additive manufacturing;
  • Characterization techniques for the improvement of laser additive manufacturing;
  • Crack and fatigue properties in laser additive manufacturing;
  • Process controls for laser additive manufacturing;
  • Fundamental and functional properties of surfaces and interfaces in laser deposition repair and modification;
  • Surface formation in laser additive manufacturing;
  • Modelling and simulations of laser additive manufacturing;
  • Digital twin of laser additive manufacturing;
  • Topological optimization in laser additive manufacturing.

Prof. Dr. Zhao Zhang
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. Coatings 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

  • laser additive manufacturing
  • directed energy deposition
  • powder bed fusion
  • laser deposition repairing and modification
  • laser-arc hybrid additive manufacturing

Published Papers (1 paper)

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Research

14 pages, 6160 KiB  
Article
Energy-Absorption Behavior of Novel Bio-Inspired Thin-Walled Honeycomb Tubes Filled with TPMS Structure
by Jian Song, Qidong Huo, Dongming Li, Bingzhi Chen and Jun Zhang
Coatings 2024, 14(6), 675; https://doi.org/10.3390/coatings14060675 - 27 May 2024
Viewed by 480
Abstract
The application of bionic structures for the design of energy-absorbing structures has been proposed recently. The rapid advancement of additive manufacturing technology provides technical support for the fabrication of non-traditional structures and further improves the energy-absorbing properties of bionic structures. This work proposes [...] Read more.
The application of bionic structures for the design of energy-absorbing structures has been proposed recently. The rapid advancement of additive manufacturing technology provides technical support for the fabrication of non-traditional structures and further improves the energy-absorbing properties of bionic structures. This work proposes a novel bionic hybrid structure that consists of honeycomb-inspired thin-walled tubes filled with weevil-inspired diamond TPMS (triple periodic minimal surface) structures. The energy-absorbing properties and the deformation behaviors of these topologies under axial crushing loads were investigated using combined numerical simulations and experimental tests. First, the effect of filling quantity and filling distribution on energy absorption of the hybrid structures was investigated. Results show that honeycomb tubes and diamond TPMS structures produce a synergistic effect during compression, and the hybrid structures exhibit excellent stability and energy absorption capacity. The bionic hybrid structure improves specific energy absorption (SEA) by 299% compared to honeycomb tubes. Peak crush force (PCF) and SEA are more influenced by filling quantity than by filling distribution. The effects of diamond TPMS structure volume fraction and honeycomb tube wall thickness on the energetic absorptive capacity of the hybrid structure were furthermore investigated numerically. Finally, a multi-objective optimization method was used to optimize the design of the bionic hybrid structure and balance the relationship between crashworthiness and cost to obtain a bionic hybrid energy-absorbing structure with superior performance. This study provides valuable guidelines for designing and fabricating lightweight and efficient energy-absorbing structures with significant potential for engineering applications. Full article
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