Abstract

Abstract Polyether-ether-ketone (PEEK) is one of the high-performance polymers and has versatile applications in different industries. It has higher mechanical strength compared to other high-temperature polymers, and achieving this mechanical strength using additive manufacturing is not straightforward. Additive manufacturing of PEEK requires great attention before, during, and after 3D printing. This study focused on pre-processing and printing parameters to avoid warped samples and achieve high-quality tensile samples. Coating the build plate with high-temperature Nano-polymer glue at different stages has played a significant role in producing high-quality tensile samples and avoiding warped samples. This study also investigates the mechanical properties of 3D printed PEEK with different raster angles (0°, 90°, 45/90°, and +45/−45°) with and without annealed tensile samples. Controlled printing parameters were maintained, including 400 °C extrusion temperature, 160 °C bed temperature, and 90 °C ambient temperature. Higher mechanical strength was found in annealed samples for 0° and 90° raster angles, 97.445 Mpa and 98.4 MPa, respectively.

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