2. Dieless forming process of carbon fibre reinforced plastic using 3D printer
Tensile specimens made of carbon fibre reinforced plastic were manufactured by 3D printing, and the static and
fatigue strengths of the specimens were measured. Carbon fibres are sandwiched by lower and upper plastic plates
made by 3D printing using the fused deposition modelling process as shown in Fig. 1. First the lower plate is
manufactured by 3D printing, then the carbon fibres are put on the lower plate, and finally the upper plate are made
on the lower plate. The manufactured specimen is kept in a drying oven for 15 min. to bond the carbon fibres with
the upper and lower plates.