Progress in Laser Materials Processing

Special Issue Editors


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Guest Editor
CINTECX, LaserON Research Group, University of Vigo, 36310 Vigo, Spain
Interests: laser processing; laser welding; laser cutting; laser cladding; laser texturing; laser surface treatments; laser microprocessing; laser drilling
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Materials Engineering, Applied Mechanics and Construction Department, University of Vigo, Lagoas-Marcosende, 36310 Vigo, Spain
Interests: laser materials processing; laser surface modification; laser cladding; laser texturization; nanoparticle production by laser ablation; biomaterials processing and characterization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Laser technology is currently considered a key enabling technology, serving as an essential tool across numerous industries and driving significant advancements in manufacturing, healthcare, communications, and beyond. Its unprecedented precision, efficiency, and versatility make it indispensable for various industrial applications, including cutting, welding, surface treatments, or additive manufacturing, among others.

Laser technology is widely applied across different industries to process a broad range of materials, from ceramics to polymers and even metals. For example, in sectors such as microelectronics and biomedical engineering, lasers enable high-resolution fabrication while eliminating mechanical contact—an indispensable and stringent requirement for these fields.

As laser technology continues to evolve, with sources offering higher power, greater control, and improved beam quality, these advancements unlock new possibilities for innovation, enhance productivity, and drive breakthroughs in next-generation technologies. In this regard, laser technology has paved the way for previously non-existent processes, particularly in the processing of materials at the micro- and nano-scale.

This Special Issue entitled “Progress in Laser Materials Processing” welcomes contributions exploring novel applications of laser technology in manufacturing. It covers both conventional laser applications—such as cutting, welding, drilling, and surface treatment—and more innovative approaches, including laser-based micro- and nano-manufacturing.

Suitable topics include, but are not limited to, the following:

  • Laser cutting and drilling;
  • Laser welding and joining;
  • Laser surface engineering (cladding, hardening, alloying, texturing, laser-shock peening, marking, etc.);
  • Laser-based additive manufacturing;
  • Laser micro- and nano-manufacturing.

Dr. Antonio Riveiro
Prof. Dr. Rafael Comesaña
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 250 words) can be sent to the Editorial Office for assessment.

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. Journal of Manufacturing and Materials Processing 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 1800 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 materials processing
  • laser cutting
  • laser drilling
  • laser welding
  • laser surface treatment
  • laser-based additive manufacturing
  • laser micro- and nano-manufacturing

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Published Papers (2 papers)

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Research

14 pages, 6050 KB  
Article
On Combined Tensile-Shear Performance of Laser-Welded Dissimilar Overlap Joints Made of Austenitic Stainless Steel and Low-Carbon Steel
by Patricia Santos, Mihaela Iordachescu, Maricely De Abreu, Andrés Valiente and Elena Scutelnicu
J. Manuf. Mater. Process. 2025, 9(11), 351; https://doi.org/10.3390/jmmp9110351 - 27 Oct 2025
Cited by 1 | Viewed by 1065
Abstract
This paper addresses the mechanical characterization of dissimilar overlap joints made by autogenous laser welding between thin sheets of low-carbon steel (CS) and austenitic stainless steel (SS) with an optimized welding technology able to produce sound overlap joints. This involved applying the laser [...] Read more.
This paper addresses the mechanical characterization of dissimilar overlap joints made by autogenous laser welding between thin sheets of low-carbon steel (CS) and austenitic stainless steel (SS) with an optimized welding technology able to produce sound overlap joints. This involved applying the laser beam from the CS-side to reduce the SS overheating. The research is focused on the analysis of combined tensile-shear behavior of the weld and of the heat-affected zones. During testing, the applied tensile-shear load rotates the weld connecting the CS and SS plates. The rotation angle transmitted to the free ends of the plates, together with relevant strain fields, were measured by using a digital image correlation system, VIC-2D. Thus, it was found that the weld acts as a non-linear hinge which experiences a sudden loss of stiffness when strain concentrations develop from the weld ligament edges towards the loaded sides of the plates. The welded joint fails by yielding localization and necking in the CS plate, far from the weld. This mode of failure is a consequence of the weld and heat-affected zone strength mismatches of 1.09 and 1.33, respectively. These values are consistent with the hardness profile and the documented microstructural heterogeneities. Full article
(This article belongs to the Special Issue Progress in Laser Materials Processing)
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23 pages, 17405 KB  
Article
Effect of Laser Shock Peening on the Fatigue Performance of Q355D Steel Butt-Welded Joints
by Dongdong You, Yongkang Li, Fenglei Li, Jianhua Wang, Yi Hou, Pengfei Sun and Shengguan Qu
J. Manuf. Mater. Process. 2025, 9(8), 273; https://doi.org/10.3390/jmmp9080273 - 11 Aug 2025
Cited by 4 | Viewed by 2345
Abstract
This study investigated the effect of laser shock peening (LSP) treatment on the fatigue performance of Q355D steel butt-welded joints. The results demonstrate that LSP sig-nificantly enhances joint fatigue resistance through gradient hardening in surface lay-ers, introduction of high-magnitude residual compressive stress fields, [...] Read more.
This study investigated the effect of laser shock peening (LSP) treatment on the fatigue performance of Q355D steel butt-welded joints. The results demonstrate that LSP sig-nificantly enhances joint fatigue resistance through gradient hardening in surface lay-ers, introduction of high-magnitude residual compressive stress fields, and micro-structural refinement. Specifically, microhardness increased across all joint zones with gradient attenuation of strengthening effects within an approximately 700 μm depth. LSP effectively suppressed residual tensile stress concentration in regions beyond 4 mm on both sides of the weld. Fatigue tests confirmed that LSP substantially extended joint fatigue life: by 113–165% in the high-stress region (250–270 MPa) and 46–63% in the medium-low-stress region (230–240 MPa). Fractographic analysis further revealed reduced fatigue striation spacing and lower microcrack density in LSP-treated speci-mens, reflecting the synergistic effect of residual compressive stress fields and micro-structural refinement in retarding crack propagation. This work substantiates LSP as an effective method for enhancing fatigue resistance in Q355D steel welded joints. Full article
(This article belongs to the Special Issue Progress in Laser Materials Processing)
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