Laser Materials Processing Technology

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: closed (29 February 2024) | Viewed by 1722

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Guest Editor
Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi'an 710038, China
Interests: coating; tribology; laser strength; fatigue
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Special Issue Information

Dear Colleagues,

Lasers have been well established as advanced tools in the 21st century, which have the potential to be used to manufacture various materials and obtain anticipated properties. Nowadays, techniques based on lasers, such as laser additive manufacturing, laser polishing, laser shock peening, laser quenching, femtosecond laser technologies, etc., are receiving much attention. Notably, laser manufacturing technologies have great potential to be used as tools to more efficiently process present and forthcoming high-performance components, as well as micro- and nano-fabrication in aerospace, aviation, ship and automobile, etc. However, up until now, many questions have remained regarding both theories and processes, and understanding the relationship between lasers and materials remains challenging. Thus, further investigation in this field is necessary and urgent.

The Special Issue scope embraces interdisciplinary work aimed at understanding and deploying the phenomena and mechanisms between lasers and materials, optimizing laser materials processing technology to obtain improved performance, model the microstructural response to lasers, and find the potential applications in the future.

Dr. Liucheng Zhou
Guest Editor

Manuscript Submission Information

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Keywords

  • laser processing
  • mechanical properties
  • microstructural modification
  • model simulation
  • industrial application

Published Papers (1 paper)

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Research

11 pages, 4611 KiB  
Article
Comparison of Submillimeter Spot Ablation of Copper and Nickel by Multipulse Picosecond and Femtosecond Laser
by Mingyu Li, Jifei Ye, Lan Li, Bangdeng Du, Ying Wang, Heyan Gao and Chenghao Yu
Metals 2022, 12(11), 1971; https://doi.org/10.3390/met12111971 - 18 Nov 2022
Viewed by 1147
Abstract
The current transmission and reflection laser ablation micropropulsion modes have the problem of a complex working medium supply system in engineering. Therefore, we propose large-spot laser ablation with a one-dimensional supply mode. In order to verify this ablation mode, a multipulse ablation experiment [...] Read more.
The current transmission and reflection laser ablation micropropulsion modes have the problem of a complex working medium supply system in engineering. Therefore, we propose large-spot laser ablation with a one-dimensional supply mode. In order to verify this ablation mode, a multipulse ablation experiment of submillimeter-scale light spots was carried out on the surface of pretreated copper and nickel under the atmosphere using an ultrafast laser with a pulse width of 290 fs and 10 ps. The results show that femtosecond laser multipulse ablation (FLMA) leads to the grain refinement of copper, the crater quality of the two metals under FLMA is better, and picosecond laser multipulse ablation (PLMA) causes the crater of nickel to form a dense remelting bulge that affects laser absorption; both metals have obvious heat-affected zones after FLMA and PLMA, the heat-affected zones of nickel are 5–10% larger than those of copper, and the ablation depth of copper is deeper. Under the same conditions, the ablation mass of copper is smaller than that of nickel, and the specific impulse performance of laser ablation micropropulsion is better. Full article
(This article belongs to the Special Issue Laser Materials Processing Technology)
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