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- W2970396949 abstract "Abstract In polymer laser sintering, the generated part cake is a large mass of powder, and the part cake is heated to nearly its melting point. Accelerating this cooling process would allow the quick harvesting of the parts. Here we propose a method that promotes the cooling of the part cake using injected air into the cracks formed inside the part cake. Further, a system was designed and experimentally tested to inject air into the bottom of the fabricated part cake. The results denoted that the internal temperature of the part cake reached the glass transition point 17 h earlier than it did by natural cooling without airflow. Furthermore, the airflow did not result in any significant deformation or adversely affect the mechanical properties of parts. In addition, the heat transfer coefficient of the crack was estimated using the finite element method and was used to evaluate the cooling enhancement limit based on a parametric study. Thus, we concluded that the airflow through the cracks facilitated the rapid cooling of the part cakes, reducing the production time required for polymer laser sintering." @default.
- W2970396949 created "2019-09-05" @default.
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- W2970396949 date "2019-12-01" @default.
- W2970396949 modified "2023-09-25" @default.
- W2970396949 title "Rapid cooling of laser sintered part cakes using airflow through cracks" @default.
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- W2970396949 doi "https://doi.org/10.1016/j.addma.2019.100840" @default.
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