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首页> 外文期刊>Journal of Materials Engineering and Performance >Experimental Investigation of Mechanical Performance and Printability of Gamma-Irradiated Additively Manufactured ABS
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Experimental Investigation of Mechanical Performance and Printability of Gamma-Irradiated Additively Manufactured ABS

机译：γ辐照的机械性能和印刷性的实验调查含砷

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摘要

The work presented in this paper investigates the effects of gamma radiation on ABS in forms of irradiated 3D-printed parts, and irradiated filament used to later 3D-printed parts, using a cobalt-60 gamma irradiator. Tensile and flexural test samples were fabricated using off-the-shelf FDM 3D printers and irradiated at different dosages. Mechanical properties including elastic and flexure moduli, ultimate and flexural strength, % elongation at break, and surface hardness were evaluated, and results were compared to a control group. Evidence of cross-linking and chain scission and signs of possible oxidation of polymer caused by irradiation were found in both test groups which led to changes in mechanical properties. Moreover, it was found that ABS filament retains its printability after absorbing 15 kGy of gamma radiation and that its mechanical performance is very similar to those of irradiated samples at the same dose. Obtained results show promise for using ABS to fabricate sterile surgical instruments.
机译：本文提出的工作研究了使用钴-60伽马辐照器的辐照3D印刷零件形式的γ辐射对辐照3D印刷部件的辐射辐射的影响。使用搁板的FDM 3D打印机制造拉伸和弯曲试验样品，并在不同剂量下照射。评价包括弹性和弯曲的机械性能，最终和弯曲强度，折断伸长率和表面硬度，并将结果与​​对照组进行比较。在两个试验组中发现了交联和链接和链接和可氧化聚合物氧化的迹象，这导致机械性能变化。此外，发现ABS长丝在吸收15kGy的伽马辐射之后保持其可印刷性，并且其机械性能与相同剂量的辐照样品非常相似。获得的结果表明使用ABS制造无菌手术器械的承诺。

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