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Latest Advances in Laser-Based Manufacturing Technologies

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: closed (23 August 2021) | Viewed by 2664

Special Issue Editor


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Guest Editor
Luleå University of Technology, Department of Engineering Science and Mathematics, Luleå, Sweden
Interests: laser material processing; keyhole formation; spattering; laser–material interaction; metal additive manufacturing

Special Issue Information

Dear Colleagues,

Laser material processing is increasingly used in industry due to multiple advantages in supporting or replacing conventional processing technologies. Modern equipment and simulation methods help to increase our understanding of laser beam processes, which is highly desired to guarantee high-quality production and products.

The Special Issue of Applied Sciences on “Latest Advances in laser-based Manufacturing Technologies” welcomes all kinds of novel articles that help to explain the complex phenomena occurring during laser–material interaction and material behavior. Addressed topics are (but are not limited to):

  • Fundamentals of laser–material interaction;
  • Process design;
  • Spatial and temporal beam shaping;
  • Process monitoring and control;
  • Experimental observation of process dynamics and defect formation;
  • Material properties;
  • Process simulations;
  • Quality assurance.

The Special Issue shall be a platform to share recent research in laser processing. The journal will publish all types of papers: communications, articles, and reviews. The standards for submissions are of high quality, impact, and novelty. The papers must be interesting for a wide audience in all fields of science and technology.

Dr. Jörg Volpp
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. Applied Sciences 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 2400 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

  • Process observations
  • Temperature measurement
  • Melt pool dynamics
  • Pore formation
  • Spatter formation
  • Keyhole formation
  • Process stability
  • Vapor plume
  • Fluid dynamics
  • Process simulation
  • High-power lasers
  • Laser ablation…

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Published Papers (1 paper)

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Research

15 pages, 13358 KiB  
Article
Fluctuations of Tracks and Layers during Aluminium Laser Powder-Bed Fusion
by Joerg Volpp, Filippo Belelli and Riccardo Casati
Appl. Sci. 2021, 11(7), 3132; https://doi.org/10.3390/app11073132 - 1 Apr 2021
Cited by 2 | Viewed by 2144
Abstract
Laser Powder-Bed Fusion (LPBF) is one method in Additive Manufacturing where layer-wise complex structures can be built. However, although the LPBF machines produce promising parts, the efficiency and process speed are typically still low, which can make the process expensive and uneconomical. Recent [...] Read more.
Laser Powder-Bed Fusion (LPBF) is one method in Additive Manufacturing where layer-wise complex structures can be built. However, although the LPBF machines produce promising parts, the efficiency and process speed are typically still low, which can make the process expensive and uneconomical. Recent research showed that volume elements in the parts can be melted several times, while only a small material volume is added, which indicates a high loss of energy. In order to understand the process better, in this work, theoretical modeling and smart powder-bed experiments were designed to explain the impact on the track dimensions based on the previously built tracks and layers. It was found that the powder availability varies for each track and has an alternating character within and between layers. The comparison of the simulation and experimental results indicates that the powder pick-up from neighboring powder volumes is the main reason for the variations of the powder availability. Full article
(This article belongs to the Special Issue Latest Advances in Laser-Based Manufacturing Technologies)
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