Folyamatoptimalizálás folyamatos szálerősítésű hőre lágyuló műanyag kompozitok additív gyártásához

Nowadays one of the new trends in the additive manufacturing (AM) is the 3D printing of Continuous Fibre Reinforced Thermoplastic Composites (CFRTPCs) since it has promising potential to replace conventional thermoplastic parts or even metals. By using Fused deposition modelling (FDM) technology for printing CFRTPCs it is possible to produce high-strength, lightweight structures therefore it is widely used in automotive, aerospace, and civil engineering. The technology can give us the freedom to print high complex and customized geometries with desired mechanical properties by sequential layering, which can’t be manufactured by the conventional processes as well as the ability to print functional parts. [1,2]

There are still some limitations which holds back the emerging of this new technology such as the high fabrication cost, the difficulties to control the process and limitation of the volume fiber fraction. Weak adhesion between the fibers and layers leads to low strength in the build direction, moreover, the void content might act as stress concentration locations and reduce the performance. Lastly, the choice of fiber and matrix materials is limited to what supplied by the printers’ manufacturer. [1,2]

The aim of this work is the optimization of the printing process of CFRTPC by knowing the effect of Material, 3D printer, Process parameters, Environment, and Post processing on the microstructure and the mechanical performance of the 3D printed specimen. Moreover, my goal is to understand the bonding and failure mechanism, which might lead us to develop a specific design for 3D-printed fiber reinforced composite parts.

Literature:

1. Sanei, S.H.R.; Popescu, D.: 3D-Printed Carbon Fiber Reinforced Polymer Composites: A Systematic Review. J. Compos. Sci. 4, 98. (2020)

2. Chacón, J. M. et al.: Additive manufacturing of continuous fibre reinforced thermoplastic composites using fused deposition modelling: Effect of process parameters on mechanical properties.Composites Science and Technology 181: 107688. (2019)

szerző

• 
  Abdelraheem Asem
  Gépészmérnöki alapszak (BSc)
  alapképzés (BA/BSc)

konzulensek

• 
  Dr. Kovács Norbert Krisztián
  adjunktus, Polimertechnika Tanszék
• 
  Tóth Csenge
  Doktorandusz, Polimertechnika Tanszék