Editorial Board Members’ Collection Series: “Laser Welding and Additive Manufacturing”

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Welding and Joining".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 210

Special Issue Editors

Special Issue Information

Dear Colleagues,

Laser welding and additive manufacturing have revolutionized the field of metal processing, enabling unprecedented precision, efficiency, and design freedom. These advanced technologies are reshaping industries such as aerospace, automotive, energy, and medical, where high-performance metallic components are critical.

Laser welding offers advantages over traditional methods, such as minimal heat input, reduced thermal distortion, and the ability to join dissimilar metals with exceptional accuracy. Similarly, additive manufacturing has opened new possibilities for fabricating complex geometries, lightweight structures, and customized solutions that were once unattainable with conventional manufacturing techniques.

The synergy between laser welding and additive manufacturing further enhances the potential for innovation. For example, hybrid processes that integrate laser welding with 3D printing can achieve superior joint properties and seamless integration of components. Despite these advances, challenges remain, including optimizing process parameters, understanding material behavior under high thermal gradients, and ensuring the mechanical reliability of fabricated parts in demanding environments.

This Special Issue aims to explore the latest advancements in laser welding and additive manufacturing, focusing on their application to metallic materials. Topics of interest include process optimization, microstructural analysis, mechanical performance evaluation, and the development of novel alloys or coatings tailored for these technologies. Contributions addressing hybrid approaches, industrial case studies, and the integration of these methods into sustainable manufacturing systems are particularly welcome.

We invite researchers and industry professionals to share their insights and findings, contributing to the ongoing evolution of laser welding and additive manufacturing for metals.

Prof. Dr. António Bastos Pereira
Dr. Guido Di Bella
Guest Editors

Manuscript Submission Information

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Keywords

  • laser welding
  • additive manufacturing
  • metallic materials
  • hybrid processes
  • microstructural analysis
  • mechanical performance
  • process optimization
  • advanced alloys
  • thermal distortion
  • sustainable manufacturing

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Published Papers (1 paper)

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Research

17 pages, 8034 KiB  
Article
Design and Evaluation of the Mechanical Performance of Hollow BCC Truss AlSi10Mg Lattice Structures
by Wanqi Ma, Yangwei Wang, Qingtang Li, Bingyue Jiang and Jingbo Zhu
Metals 2025, 15(4), 464; https://doi.org/10.3390/met15040464 - 20 Apr 2025
Viewed by 103
Abstract
Lattice materials demonstrate exceptional advantages in lightweight design applications due to their low mass density, high specific strength, and customizable topology. Inspired by the hollow vascular bundle structure of bamboo, this study develops four bio-inspired lattice configurations through two key modifications to conventional [...] Read more.
Lattice materials demonstrate exceptional advantages in lightweight design applications due to their low mass density, high specific strength, and customizable topology. Inspired by the hollow vascular bundle structure of bamboo, this study develops four bio-inspired lattice configurations through two key modifications to conventional body-centered cubic (BCC) structures: Z-axis (loading direction) strut reinforcement and strut hollowing. The specimens were fabricated using AlSi10Mg powder via selective laser melting (SLM) technology, followed by the systematic evaluation of the compressive properties and the energy absorption characteristics. The experimental results reveal that the synergistic combination of Z-strut reinforcement and hollow design significantly enhances both the compressive resistance and the energy absorption capacity. The optimized BCC-5ZH configuration (5 Z-struts with full hollowing) achieves remarkable performance metrics at 0.5 g/cm3 density: yield strength (16.78 MPa), compressive strength (27.91 MPa), and volumetric energy absorption (10.4 MJ/m3). These values represent 236.9%, 283.4%, and 239.3% enhancements, respectively, compared to the reference BCC lattices with an equivalent density. Z-strut integration induces homogeneous stiffness distribution throughout the lattice architecture, while strut hollowing increases the effective moment of inertia. This structural evolution induces a failure mode transition from single shear band deformation to dual X-shaped shear band propagation, resulting in enhanced deformation sequence regulation within the lattice system. Full article
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