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Advanced Laser Welding Technology of Metallic Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: 20 September 2025 | Viewed by 809

Special Issue Editor


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Guest Editor
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Interests: laser welding technology; laser additive repair

Special Issue Information

Dear Colleagues,

Laser welding is a cutting-edge technology that utilizes a laser beam to join metallic materials. This technique offers numerous advantages, including high precision, reduced heat input, and minimal distortion. The importance of advanced laser welding lies in its ability to enhance the quality and performance of welded joints, making it crucial in various industries such as automotive, aerospace, and electronics.

Submissions are invited on topics such as novel laser welding methods, laser–material interactions, microstructure evolution, and mechanical performance of welded joints. Article types can include original research papers, review articles, and short communications.

The aim of this Special Issue is to bring together the latest research and developments in advanced laser welding technology of metallic materials. It focuses on exploring the fundamental principles, innovative processes, and applications of this technology, which is in line with the journal's scope.

We look forward to receiving your contributions.

Dr. Jicheng Chen
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. Materials 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 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 welding
  • metallic materials
  • advanced technology
  • dynamic mechanism
  • microstructure
  • mechanical properties

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Published Papers (1 paper)

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Research

23 pages, 15884 KB  
Article
Controlling Residual Stress and Microstructure Distribution in an Invar Alloy Joint Fabricated by Oscillating Laser Welding
by Yi Jiang, Xing Liu, Suming Chen, Kun Zhou, Yanqiu Zhao and Xiaohong Zhan
Materials 2025, 18(17), 4099; https://doi.org/10.3390/ma18174099 - 1 Sep 2025
Viewed by 583
Abstract
The efficient and high-quality welding for joining Invar alloy parts is imperative for the fabrication of composite material forming molds. The residual stress distributions and microstructural evolution during oscillating welding of Invar alloy remain inadequately characterized in the current literature, necessitating further comprehensive [...] Read more.
The efficient and high-quality welding for joining Invar alloy parts is imperative for the fabrication of composite material forming molds. The residual stress distributions and microstructural evolution during oscillating welding of Invar alloy remain inadequately characterized in the current literature, necessitating further comprehensive investigation. In this paper, laser oscillating welding with circle mode is carried out for 5 mm thick plates of Invar alloy. A finite element model for the laser oscillation welding process of Invar alloy has been established. The numerical simulations and experimental methodologies are synthetically carried out to investigate the influence of oscillating parameters on temperature field, residual stress field, and microstructure characteristics. Furthermore, the microstructural evolution of laser oscillating-welded Invar alloy is elucidated by correlating it with the characteristic distribution of the temperature field. Simulation results showed that the residual stress significantly decreases under the action of the oscillating laser. The increasing of the oscillation frequency and amplitude results in a more uniform distribution of the residual stress, and the stress peak shows a downward trend. It is indicated that the oscillation of the beam resulted in the formation of numerous fragmented fine crystals within the weld seam. Consequently, the tensile strength and elongation of the oscillating welded joint exhibit respective enhancements of 15.0% and 36.6% compared to the non-oscillating condition. Full article
(This article belongs to the Special Issue Advanced Laser Welding Technology of Metallic Materials)
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