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Layer time effects on dimensional accuracy in large-scale extrusion additive manufacturing of recycled PA12
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DOI：10.1016/j.cirpj.2026.05.014.png)
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Abstract
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• Dimensional accuracy in LSEAM improves significantly with optimized layer times for vertical and overhang geometries. • Mean absolute deviations of 0.5–1.5 mm achieved in vertical build regions. • Overhang geometries show 2–3 × higher deviations than vertical zones. • Real-time pyrometry quantifies substrate temperature-accuracy relationships. • Layer times above 25 s minimize surface defects and high-frequency deviations.
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