Surface topology as non-destructive proxy for tensile strength of plastic parts from filament-based material extrusion
Surface topology as non-destructive proxy for tensile strength of plastic parts from filament-based material extrusion
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DOI：
10.1007/s40964-023-00506-8
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发表时间：
2023-10-04
影响因子：
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通讯作者：
Vogt，Bryan D.
中科院分区：
文献类型：
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作者：
Harbinson，Bevan;Yost，Sierra F.;Vogt，Bryan D.
3d打印部件的无损表征对于质量控制和增材制造（AM）的采用至关重要。热塑性塑料增材制造的低成本驱动因素，通常是通过材料挤压增材制造（MEAM），挑战了已经为金属开发的实时、操作性表征和控制方案的集成。在这里，我们证明了从光学轮廓测定法确定的表面拓扑通过基于校准的相关性提供了关于使用商用ABS长丝的打印部件的机械响应的信息。研究了层厚对MEAM ABS拉伸性能的影响。利用快速傅里叶变换将表面拓扑转换为振幅谱。复制样品的抗拉强度的分散很好地代表了描述印刷道路周期性的两个基本波振幅的差异。这些结果表明，有关先前打印层的信息可以转移到后续层，这些层可以通过光学轮廓术进行解析，并提供快速，非破坏性打印后表征的潜力，以改善质量控制。
Non-destructive characterization of 3D-printed parts is critical for quality control and adoption of additive manufacturing (AM). The low-cost driver for AM of thermoplastics, typically through material extrusion AM (MEAM), challenges the integration of real-time, operando characterization and control schemes that have been developed for metals. Here, we demonstrate that the surface topology determined from optical profilometry provides information about the mechanical response of the printed part using commercial ABS filaments through calibration-based correlations. The influence of layer thickness on the tensile properties of MEAM ABS was examined. Surface topology was converted into amplitude spectra using fast Fourier transforms. The scatter in the tensile strength of the replicate samples was well represented by the differences in the amplitude of the two fundamental waves that describe the periodicity of the printed roads. These results suggest that information about previously printed layers is transferred to subsequent layers that can be resolved from optical profilometry and offers the potential of a rapid, non-destructive post-print characterization for improved quality control.