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首页> 外文期刊>Journal of Applied Polymer Science >Experimental study ofPLAthermal behavior during fused filament fabrication
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Experimental study ofPLAthermal behavior during fused filament fabrication

机译：熔融丝制造期间的普通行为实验研究

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摘要

Fused filament fabrication (FFF) is an additive manufacturing technique that is used to produce prototypes and a gradually more important processing route to obtain final products. Due to the layer-by-layer deposition mechanism involved, bonding between adjacent layers is controlled by the thermal energy of the material being printed, which strongly depends on the temperature development of the filaments during the deposition sequence. This study reports experimental measurements of filament temperature during deposition. These temperature profiles were compared to the predictions made by a previously developed model. The two sets of data showed good agreement, particularly concerning the occurrence of reheating peaks when new filaments are deposited onto previously deposited ones. The developed experimental technique is shown to demonstrate its sensitivity to changing operating conditions, namely platform temperature and deposition velocity. The data generated can be valuable to predict more accurately the bond quality achieved in FFF parts.
机译：熔融灯丝制造（FFF）是一种用于生产原型的附加制造技术，也是获得最终产品的一种越来越重要的加工途径。由于涉及到逐层沉积机制，相邻层之间的粘合由被打印材料的热能控制，这在很大程度上取决于沉积过程中灯丝的温度变化。本研究报告了沉积过程中灯丝温度的实验测量结果。这些温度分布与之前开发的模型所做的预测进行了比较。这两组数据显示出良好的一致性，尤其是当新的丝状物沉积到先前沉积的丝状物上时，重新加热峰的出现。所开发的实验技术证明了其对不断变化的操作条件，即平台温度和沉积速度的敏感性。生成的数据对于更准确地预测FFF零件中实现的粘合质量非常有价值。

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