Akademik Veri Yönetim Sistemi
13th International İstanbul Scientific Research Congress on Life, Engineering, and Applied Sciences, İstanbul, Türkiye, 15 Mayıs 2023, ss.115-123
Continuous fiber reinforced thermoplastic (CFRTP) 3D printing technology
has become a popular topic in industries such as manufacturing and aerospace
due to its exceptional flexibility, high conductivity, and low cost. However,
the mechanical properties of CFRTP parts produced using 3D printers are weaker
compared to parts produced using other composite manufacturing methods, which
is one of the main disadvantages of this method. Researchers have focused
intensively on developing methods to increase the strength of parts produced
using various techniques. The main objective of this study is to investigate
the mechanical performance of continuous carbon fiber reinforced PEEK
(Polyether ether ketone) composites produced additively in a vacuum
environment. To achieve vacuum levels of 0.5 mbar, a vacuum chamber that can be
placed inside the Fused Deposition Modeling (FDM) printer was designed. The CFRTP filament
used in the 3D printer was produced by using a fiber-polymer impregnation
platform to produce a continuous carbon fiber reinforced PEEK thermoplastic
filament. CFRTP composite samples were produced at various vacuum levels (0.5 mbar,
10 mbar, 100 mbar) inside the vacuum chamber, and three-point bending tests
were conducted to investigate their mechanical properties. The bending stress
and elastic modulus of the samples produced at 0.5 mbar were 151.39% and 18.70%
higher, respectively, than the samples produced at 100 mbar.