Enhanced Mechanical Performance of 3D‐Printed Continuous Fiber Reinforced Composites Through Nozzle Vibration‐Assisted Compaction
Source abstract
Abstract
High porosity in 3D‐printed continuous fiber‐reinforced composites remains a major challenge, compromising the quality of the final parts. This study proposes a novel nozzle vibration‐assisted compaction technique using a voice coil motor to enhance the mechanical properties of 3D‐printed continuous fiber reinforced composites. A voice coil motor with controllable amplitude and frequency was integrated with the printing nozzle to apply periodic vibrations in the z ‐direction during the printing process. The effects of different vibration parameters (50 μm/5 Hz, 75 μm/5 Hz, 50 μm/10 Hz, 75 μm/10 Hz) on mechanical properties and microstructure were systematically investigated through three‐point bending tests, tensile tests, and microscopic analysis. Experimental results demonstrated that the optimal nozzle vibration‐assisted compaction parameters (50 μm/10 Hz) significantly enhanced flexural strength and modulus by 47.3% and 17.3%, tensile strength and modulus by 3.3% and 19.7%, respectively, while reducing porosity from 8.6% to 1.5%, providing an effective approach to improving the quality and expanding the application potential of 3D‐printed continuous fiber composites.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Additive Manufacturing and 3D Printing Technologies · Polymer Foaming and Composites · Cellular and Composite Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical Engineering University of Science and Technology Beijing Beijing China
School of Aerospace Engineering and Applied Mechanics Tongji University Shanghai China
School of Mechanical Engineering Jiangsu University of Science and Technology Zhenjiang China
Funding
National Natural Science Foundation of China
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