CFRTP Molding Method Of The
Three-dimensional Shape By Using Direct
Resistance Heating To Carbon Fiber
Author(s)
S. Enoki, K. Moriito, K. Tanaka & T. Katayama
Abstract
Recently, Carbon Fiber Reinforced Thermoplastics (CFRTP) are expected to be
used for lightweight component parts. To mold CFRTP, it is necessary to
impregnate carbon fiber bundles with thermoplastic resin by heating the
materials. We have been developing a low cost CFRTP molding technique in
which direct resistance heating was applied to carbon fiber itself. When electrical
current runs through the materials, they are heated by joule heat. Therefore this
method can run with simple equipment and low consumed power. In our
previous studies, flat plates and pipes of CFRTP have been molded by using
direct resistance heating and the molding abilities have been evaluated. To use
this molding method for automobile components, it is necessary to apply this
method to three-dimensional molding. However, the temperature distribution of
carbon fiber NCF has not been clarified when a direct resistance heating method
is applied to three-dimensional molding. In this study, the heating properties of
carbon fiber NCF formed at 90º and 120º by using direct resistance heating were
evaluated, and angle plates were molded. By using direct heating to carbon fiber
NCF the angle plates of CF/PA6 have been successfully molded in the condition
for the holding time of 1 minute, the pressure of 2 MPa and heating temperature
of 290°C.
Keywords: carbon fiber, non-crimp fabric (NCF), Direct resistance heating,
thermoplastics composites, molding.
Keywords
carbon fiber, non-crimp fabric (NCF), Direct resistance heating,
thermoplastics composites, molding.
Related Book
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