The 3rd International Conference of Materials and Engineering Technology (TICMET21), Gaziantep, Turkey, 5 - 06 November 2021, pp.257
The
continuous carbon fiber-reinforced thermoplastic (CFRTP) printing process has
been used more widely in recent years and is an alternative production method,
especially in sectors such as aviation, automotive, prototyping, medical applications,
and aerospace. Although additive manufacturing reduces the design limitations
and makes it easier to manufacture, it is one of the disadvantages of this
method: it has relatively low thermal and mechanical properties compared to
standard production techniques. Therefore, in this study, printing parameters
such as nozzle temperature, printing speed, layer thickness and heated bed
temperature was investigated for fused deposition modelling. In this regard, a
polymer impregnation line based on the melt impregnation technique was utilized
to obtain CFRTP filaments using polylactic acid (PLA) and 3K carbon fiber.
Obtained filaments then were used to print three-point bending test samples in
order to investigate mechanical performance. The test result showed flexural
stress between 108 and 224 MPa and flexural modulus between 9.67 and 17.69 GPa
with a 23% fiber ratio. Results from this study proclaim that CFRTP's
manufactured with this method and optimized printing parameters have great
potential for implementing future production methods.