Experimental, statistical and numerical study of the single laser spot condition and influence parameters of a Neodymium-Doped Yttrium Lithium Fluoride laser

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-05-15 DOI:10.1016/j.optlastec.2025.113202

Mohammad Rezayat , Mojtaba Karamimoghadam , Alexandra Morvayová , Nicola Contuzzi , Giuseppe Casalino , Antonio Mateo

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Abstract

This study investigates the influence of key laser processing parameters—namely laser power and pass number—on AISI 301LN stainless steel, utilizing a Neodymium-Doped Yttrium Lithium Fluoride (Nd) laser. Employing a Design of Experiments (DOE) approach coupled with Finite Element Analysis (FEA), the research examines single-spot laser effects on surface morphology, with specific focus on spot width, depth, and roughness. Through systematic experimentation, ANOVA, and response surface methodology, significant findings reveal that pass number is a dominant factor affecting spot width and depth, while laser power subtly impacts roughness. The study provides regression models for predictive analysis, enabling parameter optimization to achieve precise microstructural changes. Complementary simulations further illustrate thermal distribution, ablation effects, and fluid dynamics in the laser-affected zone. Results support tailored laser parameters selection to improve surface integrity and performance, positioning this approach as valuable for precision applications in advanced materials processing.

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掺钕钇氟化锂激光器单激光光斑条件及影响参数的实验、统计和数值研究

利用掺钕钇氟化锂（Nd）激光器，研究了关键激光加工参数——激光功率和通过数对AISI 301LN不锈钢的影响。采用实验设计（DOE）方法与有限元分析（FEA）相结合，研究了单光斑激光对表面形貌的影响，特别关注光斑宽度、深度和粗糙度。通过系统实验、方差分析和响应面方法，我们发现光斑宽度和深度的主要影响因素是通过数，而激光功率对光斑粗糙度的影响较小。该研究为预测分析提供了回归模型，使参数优化能够实现精确的微观结构变化。补充模拟进一步说明了激光影响区的热分布、烧蚀效应和流体动力学。结果支持量身定制的激光参数选择，以提高表面完整性和性能，使这种方法在先进材料加工的精密应用中具有价值。

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems