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Laser-Based Surface Processing: Techniques, Mechanisms, and Advanced Applications

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

Deadline for manuscript submissions: 30 November 2025 | Viewed by 488

Special Issue Editors


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Guest Editor
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, China
Interests: laser processing; surface engineering; semiconductor packaging technology

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Guest Editor
School of Mechanical Science & Engineering, Huazhong University of Science and Technology, Wuhan, China
Interests: micro & nano manufacturing; micro & nano mechanics; reliability of microelectronic packaging micro & nano testing and measurement
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Materials Science and Engineering, Harbin Institute of Technology, Weihai, China
Interests: laser welding; additive manufacturing; underwater laser additive remanufacturing technology and equipment; underwater welding material design and development

Special Issue Information

Dear Colleagues,

Surface engineering plays a pivotal role in enhancing the performance and functionality of materials across diverse industries. Laser-based surface processing has emerged as a powerful and versatile technique suite that offers precise control over material surface properties, enabling tailored functionalities and improved performance characteristics. This Special Issue, "Laser-Based Surface Processing: Techniques, Mechanisms, and Advanced Applications", aims to showcase the latest advancements in this rapidly evolving field, encompassing fundamental research on underlying mechanisms to cutting-edge applications in various sectors.

We invite submissions that explore the breadth of laser-based surface processing, including but not limited to laser surface modification techniques, fundamental mechanisms of laser–material interaction, advanced characterization of laser-processed surfaces, applications in emerging fields, and so on.

This Special Issue will provide a comprehensive platform for researchers and engineers to disseminate their latest findings and insights in laser-based surface processing. We anticipate that this collection of articles will contribute significantly to the advancement of the field and inspire further innovation in surface engineering for advanced materials and applications.

Dr. Yuhua Huang
Prof. Dr. Fulong Zhu
Dr. Yunlong Fu
Guest Editors

Manuscript Submission Information

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Keywords

  • laser surface processing
  • laser surface modification
  • laser texturing
  • laser–material interaction
  • additive manufacturing
  • laser processing monitors

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Published Papers (1 paper)

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Research

24 pages, 14731 KiB  
Article
Hybrid Laser Cleaning of Carbon Deposits on N52B30 Engine Piston Crowns: Multi-Objective Optimization via Response Surface Methodology
by Yishun Su, Liang Wang, Zhehe Yao, Qunli Zhang, Zhijun Chen, Jiawei Duan, Tingqing Ye and Jianhua Yao
Materials 2025, 18(15), 3626; https://doi.org/10.3390/ma18153626 - 1 Aug 2025
Viewed by 362
Abstract
Carbon deposits on the crown of engine pistons can markedly reduce combustion efficiency and shorten service life. Conventional cleaning techniques often fail to simultaneously ensure a high carbon removal efficiency and maintain optimal surface integrity. To enable efficient and precise carbon removal, this [...] Read more.
Carbon deposits on the crown of engine pistons can markedly reduce combustion efficiency and shorten service life. Conventional cleaning techniques often fail to simultaneously ensure a high carbon removal efficiency and maintain optimal surface integrity. To enable efficient and precise carbon removal, this study proposes the application of hybrid laser cleaning—combining continuous-wave (CW) and pulsed lasers—to piston carbon deposit removal, and employs response surface methodology (RSM) for multi-objective process optimization. Using the N52B30 engine piston as the experimental substrate, this study systematically investigates the combined effects of key process parameters—including CW laser power, pulsed laser power, cleaning speed, and pulse repetition frequency—on surface roughness (Sa) and carbon residue rate (RC). Plackett–Burman design was employed to identify significant factors, the method of the steepest ascent was utilized to approximate the optimal region, and a quadratic regression model was constructed using Box–Behnken response surface methodology. The results reveal that the Y-direction cleaning speed and pulsed laser power exert the most pronounced influence on surface roughness (F-values of 112.58 and 34.85, respectively), whereas CW laser power has the strongest effect on the carbon residue rate (F-value of 57.74). The optimized process parameters are as follows: CW laser power set at 625.8 W, pulsed laser power at 250.08 W, Y-direction cleaning speed of 15.00 mm/s, and pulse repetition frequency of 31.54 kHz. Under these conditions, the surface roughness (Sa) is reduced to 0.947 μm, and the carbon residue rate (RC) is lowered to 3.67%, thereby satisfying the service performance requirements for engine pistons. This study offers technical insights into the precise control of the hybrid laser cleaning process and its practical application in engine maintenance and the remanufacturing of end-of-life components. Full article
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