Extrusion & Post
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Thermal stress warpage in PLA additive manufacturing
Problem Phenomenon
Large-size PLA 3D printed parts warp from thermal stress and detach from the printing platform.
Cause Analysis
The stress generated by material shrinkage during cooling is greater than the platform adhesion, causing warpage.
Solution
Heat the platform to 40-60°C; use an adhesion promoting layer; enclose the printer for heat preservation.
Key Takeaway
Warping of large PLA printed parts requires thermal management.
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