Laser Processing of Metallic Material

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Additive Manufacturing".

Deadline for manuscript submissions: 31 March 2026 | Viewed by 365

Special Issue Editors

School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: laser drilling; liquid-assisted laser processing; ultrafast laser processing

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Guest Editor
School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: additive manufacturing; laser shock peening; laser processing technology

E-Mail Website
Guest Editor
School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: additive manufacturing; laser processing technology; advanced manufacturing technology and equipment

Special Issue Information

Dear Colleagues,

Laser processing technology is widely used in cutting, drilling, welding, marking, surface treatment, and 3D printing of metallic materials, with advantages such as high precision, high efficiency, low thermal impact, and environmental protection. Its core advantages include high precision, efficiency, and flexibility; energy conservation; environmental protection; and wide applicability. Currently, laser processing technology is developing towards achieving higher power, shorter pulse width, and greater intelligence. With technological progress and cost reduction, laser processing will play a more important role in the field of metallic material processing, thereby providing strong technical support for the transformation and upgrade of the manufacturing industry. The application of laser processing in fields such as automotive, aerospace, and electronics continues to expand, gradually replacing traditional processes and becoming a key technology in advanced manufacturing.

For this Special Issue, we welcome articles that focus on new laser processing methods for metallic materials and their influence on the final products’ performance. Research on improving laser processing efficiency or surface quality of metal materials through process innovation or multi-energy field fusion is especially welcome.

We look forward to receiving your contributions.

Dr. Kaibo Xia
Dr. Lan Chen
Dr. Xinzhou Zhang
Guest Editors

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Keywords

  • laser precision machining
  • additive manufacturing
  • laser micro–nano machining
  • laser drilling
  • ultrafast laser processing

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Published Papers (1 paper)

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Research

17 pages, 12944 KB  
Article
Experimental Study on Backwater-Assisted Picosecond Laser Trepanning of 304 Stainless Steel
by Liang Wang, Rui Xia, Jie Zhou, Yefei Rong, Changjian Wu, Long Xu, Xiaoxu Han and Kaibo Xia
Metals 2025, 15(10), 1138; https://doi.org/10.3390/met15101138 - 13 Oct 2025
Viewed by 275
Abstract
This study focuses on the high-precision microhole machining of 304 stainless steel and explores a backwater-assisted picosecond laser trepanning technique. The laser used is a 30 W green picosecond laser with a wavelength of 532 nm, a repetition rate of 1000 kHz, and [...] Read more.
This study focuses on the high-precision microhole machining of 304 stainless steel and explores a backwater-assisted picosecond laser trepanning technique. The laser used is a 30 W green picosecond laser with a wavelength of 532 nm, a repetition rate of 1000 kHz, and a pulse width of less than 15 ps. Experiments were conducted under both water-based and non-water-based laser processing environments to systematically investigate the effects of laser power and scanning cycles on hole roundness, taper, and overall hole quality. The experimental results further confirm the advantages of the backwater-assisted technique in reducing slag accumulation, minimizing roundness variation, and improving hole uniformity. In addition, thermal effects during the machining process were analyzed, showing that the water-based environment effectively suppresses the expansion of the heat-affected zone and mitigates recast layer formation, thereby enhancing hole wall quality. Compared with conventional non-water-based methods, the backwater-assisted approach demonstrates superior processing stability, better hole morphology, and more efficient thermal management. This work provides a reliable technical route and theoretical foundation for precision microhole machining of stainless steel and exhibits strong potential for engineering applications. Full article
(This article belongs to the Special Issue Laser Processing of Metallic Material)
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