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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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.