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Recent Advances in Advanced Laser Processing Technologies
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Recent Advances in Advanced Laser Processing Technologies

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 2016

Special Issue Editor

Prof. Dr. Dermot Brabazon

E-Mail Website
Guest Editor
1. School of Mechanical and Manufacturing Engineering, Dublin City University, D09 V209 Dublin, Ireland
2. Advanced Processing Technology Research Centre APT, D09 V209 Dublin, Ireland
3. I-Form Advanced Manufacturing Research Centre, D04 C1P1 Dublin, Ireland
Interests: laser processing; material processing; material functionalisation; nanostructured materials; rapid prototyping; chromatography
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Laser processing is a groundbreaking technique that is revolutionizing advanced manufacturing across a wide range of materials. With its notable advantages of high efficiency, superior quality, automation, and customization, laser processing techniques have found extensive applications in various industrial sectors, including aerospace, energy, transportation, and healthcare. However, the demands of manufacturing technology in these industries are constantly evolving, becoming more complex and stringent. It is evident that further research is necessary to enhance our understanding of process physics, to optimize processes, and to develop novel applications.

This Special Issue aims to create a platform for showcasing cutting-edge advancements, inspiring new developments and promoting the applications of laser material processing. We welcome both original research papers and reviews from scientists, researchers, engineers, and experts in this field. Topics of interest include the following areas:

  • Laser processing and additive manufacturing;
  • Laser machining, including cutting/drilling/texturing;
  • Laser forming, including bending/rapid prototyping/coloring/deposition;
  • Laser joining, including laser welding/brazing/soldering/sintering;
  • Laser–matter interaction in material processing;
  • Laser-based surface engineering.

Prof. Dr. Dermot Brabazon
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 material processing
  • laser welding
  • laser additive manufacturing
  • process simulation
  • process monitoring and/or control
  • metallurgical and mechanical behavior
  • quality control

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

13 pages, 4052 KiB  
Article
Fabrication of Superhydrophobic Surfaces from Laser-Induced Graphene and Their Photothermally Driven Properties
by Yue Zhao, Yonghui Zhang, Yang Chen, Haodong Fu, Hao Liu, Jinlong Song and Xin Liu
Materials 2025, 18(8), 1880; https://doi.org/10.3390/ma18081880 - 21 Apr 2025
Abstract
Conventional LIG preparation mostly relies on the ablation process of a CO2 laser on a polyimide (PI) substrate but is limited by the sensitivity of the laser parameters, which is prone to PI film deformation, non-uniformity of the process, or LIG surface [...] Read more.
Conventional LIG preparation mostly relies on the ablation process of a CO2 laser on a polyimide (PI) substrate but is limited by the sensitivity of the laser parameters, which is prone to PI film deformation, non-uniformity of the process, or LIG surface breakage problems. In this study, we present a new method to fabricate superhydrophobic laser-induced graphene (SH-LIG) surfaces by immobilizing the polyimide (PI) film on the copper sheet, which enables uniform laser processing (single pass laser etching) over a wider range of microsecond laser parameters (10.5–19.5 W). Subsequently, the SH-LIG was obtained by vacuum-assisted immersion in stearic acid, resulting in a water contact angle greater than 150°, roll angle stabilized at 6°, and hydrophobic stability at a high temperature of 90 °C. Analysis by Raman spectroscopy (Raman), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) showed that the LIG fabricated at optimal power (19.5 W) had a more developed C sp2 network (I2D/IG ≈ 0.5) and pore structure, which significantly improved the photothermal conversion efficiency (up to 252 °C in air and 180 °C on water). On this basis, a simple micro-driver based on SH-LIG was designed. Experiments showed that the maximum velocity of the SH-LIG boat can reach an adjustable propulsion velocity of 45.6 mm/s (related to the laser processing power and the intensity of the driving light), which is 132% higher than that of the LIG boat. This work provides insights into the preparation of high-quality LIG and their application in photothermally driven micro actuators, highlighting the synergies between structural optimization, surface engineering, and photothermal performance. Full article
(This article belongs to the Special Issue Recent Advances in Advanced Laser Processing Technologies)
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18 pages, 6867 KiB  
Article
Influence of High-Temperature Substrate Preheating on Laser Cladding of Stellite 6 onto Inconel 718 Alloy
by Andrzej Gradzik, Karol Walczyk, Kamil Gancarczyk, Barbara Kościelniak, Mariusz Walczak, Natalia Gancarczyk, Jacek Nawrocki and Robert Albrecht
Materials 2025, 18(8), 1814; https://doi.org/10.3390/ma18081814 - 15 Apr 2025
Viewed by 141
Abstract
Laser cladding is a modern surface treatment process used for the regeneration of damaged components and deposition of coatings for protection against corrosion and wear. Precise process control enables the production of claddings on small surfaces (<1 cm2). However, in some [...] Read more.
Laser cladding is a modern surface treatment process used for the regeneration of damaged components and deposition of coatings for protection against corrosion and wear. Precise process control enables the production of claddings on small surfaces (<1 cm2). However, in some cases (e.g., cladding of turbine blades), there is a limited possibility of heat dissipation into the substrate material, which causes its rapid heating to several hundred degrees Celsius. This work’s objective is to determine the effect of the substrate temperature and laser cladding parameters of a Stellite 6 cobalt-based alloy on the Inconel 718 nickel-based alloy substrate on the geometry of a single cladding track, as well as its microstructure and hardness. Laser cladding with Stellite 6 powder was performed using an Yb:YAG TruDisk 1000 laser. The varied process parameters included the laser beam power density, cladding speed, and powder flow rate. The samples were preheated using a chamber furnace to a temperature ranging from 20 to 800 °C. The geometry of the single tracks produced by laser cladding and the substrate material dilution ratio were determined by measurements conducted on their cross-sections. Further microstructure investigations were performed by means of electron microscopy (SEM). Additionally, hardness measurements (HV0.3) were conducted on the cross-section of each cladded track. It was found that a higher substrate temperature causes melt pool widening and increases the melt depth, while the height of the single cladded track remains only slightly altered. These phenomena lead to the excessive dilution of the substrate material in the cladding (>35%) and result in a decrease in its hardness to the values characteristic of the Inconel 718 substrate (395 HV0.3). Full article
(This article belongs to the Special Issue Recent Advances in Advanced Laser Processing Technologies)
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16 pages, 4892 KiB  
Article
Fabrication of Silicon Carbide Nanoparticles Using Pulsed Laser Ablation in Liquid and Viscosity Optimization via Solvent Tuning
by Saeid Heidarinassab, Anesu Nyabadza, Inam Ul Ahad and Dermot Brabazon
Materials 2024, 17(18), 4527; https://doi.org/10.3390/ma17184527 - 14 Sep 2024
Cited by 1 | Viewed by 1327
Abstract
In this study, silicon carbide nanoparticles (NPs) were produced via pulsed laser ablation in liquid, aiming to investigate the influence of processing parameters on the properties of the resultant NPs and their applicability for inkjet printing. The results revealed an increase in NP [...] Read more.
In this study, silicon carbide nanoparticles (NPs) were produced via pulsed laser ablation in liquid, aiming to investigate the influence of processing parameters on the properties of the resultant NPs and their applicability for inkjet printing. The results revealed an increase in NP concentration with increasing laser power, but the maximal absorbance in the case of 0.743 and 1.505 W is lower than that for 1.282 W laser. Dynamic light scattering was employed to determine the size distribution of the NPs, demonstrating a range of 89 to 155 nm in diameter. Notably, an inverse relationship was established between increasing laser scanning speed and pulse repetition rate (PRR) and the mean size of the NPs. Higher PRR and laser power exhibited an augmentation in the concentration of NPs. Conversely, an increase in scanning speed resulted in a reduction in NP concentration. Based on FTIR, data formation of SiC NPs based on the target material is the most dominant behavior observed followed by an amount of oxidation of the NPs. Examination of the resulting NPs through field emission scanning electron microscopy equipped with energy-dispersive X-ray analysis (EDX) unveiled a predominantly spherical morphology, accompanied by particle agglomeration in some cases, and the elemental composition showed silicon, carbon, and some oxygen present in the resulting NPs. Furthermore, the modulation of colloidal solution viscosity was explored by incorporating glycerol, yielding a maximal viscosity of 10.95 mPa·s. Full article
(This article belongs to the Special Issue Recent Advances in Advanced Laser Processing Technologies)
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