Effect of laser micro-texturing MJF 3D printed polymers on surface properties and mechanical strength of adhesive joints

IF 3.5 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2025-03-03 DOI:10.1016/j.precisioneng.2025.03.006

Tomasz Wojdat

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Abstract

The effect of laser micro-texturing of the surface of PA12 polyamide samples manufactured using the Multi Jet Fusion (MJF) additive method in terms of their surface properties and mechanical strength of adhesive joints was presented in the article. The study identifies a correlation between the surface structure of printed samples and laser processing parameters that enhance adhesion mechanisms during bonding. The results demonstrate that an optimized surface topography enables the creation of durable, high-strength adhesive joints. A grid-type texture with groove depths in the range of 150–200 μm allows for a nearly 50 % increase in the surface free energy (SFE) of the prints. It was shown that laser micro-processing allows for obtaining adhesive joints with high shear strength, exceeding 40 MPa, which is more than twice as much as compared to the reference joints in the as-printed state.

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激光微织构MJF 3D打印聚合物对粘接接头表面性能和机械强度的影响

本文研究了激光微织构对多喷射熔合（MJF）添加剂法制备的PA12聚酰胺样品表面性能和粘接接头机械强度的影响。该研究确定了打印样品的表面结构与激光加工参数之间的相关性，这些参数可以增强粘合过程中的粘附机制。结果表明，优化的表面形貌可以创建持久、高强度的粘合接头。凹槽深度在150 ~ 200 μm范围内的网格型纹理可以使打印件的表面自由能（SFE）提高近50%。结果表明，激光微加工可获得剪切强度高的粘结接头，剪切强度超过40 MPa，是打印状态下参考接头的两倍多。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology 工程技术-工程：制造

CiteScore

7.40

自引率

5.60%

发文量

177

审稿时长

46 days

期刊介绍： Precision Engineering - Journal of the International Societies for Precision Engineering and Nanotechnology is devoted to the multidisciplinary study and practice of high accuracy engineering, metrology, and manufacturing. The journal takes an integrated approach to all subjects related to research, design, manufacture, performance validation, and application of high precision machines, instruments, and components, including fundamental and applied research and development in manufacturing processes, fabrication technology, and advanced measurement science. The scope includes precision-engineered systems and supporting metrology over the full range of length scales, from atom-based nanotechnology and advanced lithographic technology to large-scale systems, including optical and radio telescopes and macrometrology.