Optimization of post-processing parameters for enhanced characterization in metal extrusion 3D printing of copper-polymer composites
The high costs associated with metal additive manufacturing methods including expensive feedstock, energy-intensive lasers, and controlled environments have limited their widespread adoption in industries like aerospace and automotive, despite powder bed fusion success in producing intricate and...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
SPRINGERNATURE
2025
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/123772/7/123772_%20Optimization%20of%20post-processing.pdf http://irep.iium.edu.my/123772/ https://link.springer.com/article/10.1007/s43939-025-00385-6 |
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| Summary: | The high costs associated with metal additive manufacturing methods including
expensive feedstock, energy-intensive lasers, and controlled environments have
limited their widespread adoption in industries like aerospace and automotive,
despite powder bed fusion success in producing intricate and high-precision
components. As a cost-effective alternative, material extrusion 3D printing enables
the fabrication of metal-polymer composites using simpler equipment. However,
challenges remain in optimizing post-processing parameters to enhance mechanical
performance and microstructural integrity. This study focuses on improving the
post-processing of copper-filled PLA parts fabricated with an Artillery Sidewinder X1
material extrusion printer. A Taguchi design of experiments approach using an L8
orthogonal array was employed to investigate the effects of debinding time, sintering
time, and layer thickness. Results showed that shorter debinding compromised
structural integrity in 25% of samples, while optimized settings achieved a 30.59%
shrinkage and a 12.5% hardness increase. These findings highlight the significance of
proper thermal post-processing in controlling dimensional changes and improving
part quality. |
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