对 FFF PEEK 拉伸性能的研究:印刷参数和后处理的影响

Alessandro Greco , Alessandro De Luca , Raffaele Sepe , Salvatore Gerbino
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引用次数: 0

摘要

本研究调查了增材制造(AM)聚醚醚酮(PEEK)在不同打印和后处理条件下的拉伸性能,重点是为未来的疲劳测试提供见解。PEEK 是一种高性能热塑性材料,具有优异的机械性能,广泛应用于许多行业。本研究使用基于熔融长丝制造(FFF)技术的 miniFactory Ultra 三维打印机制造 PEEK 试样,以评估打印参数对其机械性能的影响。研究考虑了三个关键因素:层高、填充模式和可能的后处理退火。层高和填充模式的变化旨在评估它们对拉伸性能的影响,而退火处理则是为了评估残余应力的影响。结果表明,填充模式对拉伸性能有很大影响,而退火处理并没有改善三角形填充模式试样的性能。这项研究为航空航天、汽车和医疗保健等行业提供了有价值的见解,这些行业越来越多地使用 AM PEEK 组件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation on tensile properties of FFF PEEK: Effects of printing parameters and post-processing treatment

This research investigated on the tensile properties of Additive Manufacturing (AM) PolyEther Ether Ketone (PEEK) under different printing and post processing conditions, with a focus on providing insights for future fatigue tests. PEEK is a high-performance thermoplastic material with excellent mechanical properties that is widely used in many industries. In this study, the miniFactory Ultra 3D printer, based on Fused Filament Fabrication (FFF) technology, was used to fabricate PEEK specimens so as to assess the influence of printing parameters on the mechanical performances. Three key factors were considered: layer height, infill pattern and annealing as possible post-processing treatment. The variation of layer height and infill pattern aimed at evaluating their effects on the tensile properties, whereas annealing treatment was performed to assess the influence of residual stresses. The results indicated that infill pattern significantly affected the tensile properties, whereas annealing did not improve properties of specimens with triangular infill pattern. This research provides valuable insights for industries such as aerospace, automotive, and healthcare, where AM PEEK components are increasingly utilized.

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