Abstract
Poly (ether ether ketone) (PEEK) is a high-performance engineering thermoplastic polymer with potential for use in a variety of metal replacement applications due to its high strength to weight ratio. This combination of properties makes it an ideal material for use in the production of bespoke replacement parts for out-of-earth manufacturing purposes, in particular on the International Space Station (ISS). Additive manufacturing (AM) may be employed for the production of these parts, as it has enabled new fabrication pathways for articles with complex design considerations. However, AM of PEEK via fused filament fabrication (FFF) encounters significant challenges, mostly stemming from the semi crystalline nature of PEEK and its associated high melting temperature. This makes PEEK highly susceptible to changes in processing conditions which leads to a large reported variation in the literature on the final performance of PEEK. This has limited the adaption of FFF printing of PEEK in space applications where quality assurance and reproducibility are paramount. In recent years, several research studies have examined the effect of printing parameters on the performance of the 3D-printed PEEK parts. The aim of the current review is to provide comprehensive information in relation to the process-structure-property relationships in FFF 3D-printing of PEEK to provide a clear baseline to the research community and assesses its potential for space applications, including out-of-earth manufacturing.
Highlights
Additive Manufacturing (AM) is a technology based on the principle of layer-by-layer manufacturing, which allows the production of complicated polymeric, metallic, and ceramic parts.Employing this revolutionary method decreases cycle time and cost of product development [1,2].Fabrication of polymeric parts via AM is generally carried out using one of three different processes which are stereolithography (SLA) [3,4], selective laser sintering (SLS) [5,6,7], and fused filament fabrication (FFF) [8,9,10]
This review aims to give a comprehensive insight into the relationships between process, structure, and properties of Poly(ether ether ketone) (PEEK) parts produced using additive manufacturing
Results have shown that printing of PEEK in the vertical direction leads to a lower Poisson’s ratio
Summary
Additive Manufacturing (AM) is a technology based on the principle of layer-by-layer manufacturing, which allows the production of complicated polymeric, metallic, and ceramic parts.Employing this revolutionary method decreases cycle time and cost of product development [1,2].Fabrication of polymeric parts via AM is generally carried out using one of three different processes which are stereolithography (SLA) [3,4], selective laser sintering (SLS) [5,6,7], and fused filament fabrication (FFF) [8,9,10]. Additive Manufacturing (AM) is a technology based on the principle of layer-by-layer manufacturing, which allows the production of complicated polymeric, metallic, and ceramic parts. Employing this revolutionary method decreases cycle time and cost of product development [1,2]. Fabrication of polymeric parts via AM is generally carried out using one of three different processes which are stereolithography (SLA) [3,4], selective laser sintering (SLS) [5,6,7], and fused filament fabrication (FFF) [8,9,10]. SLS employs a laser to sinter a polymer powder as a feedstock material. It has been used as a technique to overcome
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