MTA-BME Research Group

Investigation of additive manufactured 3D reinforcing framework structure as insert in injection molded composite products

Project ID:
OTKA FK134336
Supported by:
Nemzeti Kutatási, Fejlesztési és Innovációs Hivatal (NKFIH)
1 September 2020 - 31 August 2024
Supervisor (BME):
Dr. Tamás Tábi
Participant researchers (BME):
Dr. Kovács Norbert Krisztián
Dr. Suplicz András
Dr. Szabó Ferenc

Project summary

Nowadays polymer products are more and more often used in parts of critical safety and parts subjected to high loads. As a result, fiber-reinforced composites receive more and more attention. Their mechanical properties are anisotropic, and depend on the orientation of the reinforcement. Fiber-reinforced materials can be injection molded; here the orientation of the fibers is basically determined by the flow conditions. As a result, the part often needs to have increased wall thickness or reinforcing ribs to satisfy mechanical requirements. Ribs, however, mean extra material, weight and cost. Another problem is the weld lines, which result in the forming of mechanically critical areas. A further problem is fiber breaking, caused by the technology. The goal of the project is to create a complex design methodology with which a tailor-made reinforcing structure can be made in injection molded parts as a separate step, by 3D printing. Its advantage is that the characteristics of the reinforcing structure (orientation, fiber content etc.) can be made independent of flow conditions and can be changed in each point according to the load. Another advantage of the procedure is that fiber shortening can also be greatly reduced, thus the reinforcing effect is increased and recyclability by remelting is better facilitated. A further goal is to apply and extend the developed method for biopolymers like Poly(Lactic Acid) (PLA), the one which is mostly in focus for biopolymer research.

Project results

Section 1
1 September 2020 - 31 August 2021

Section 2
1 September 2021 - 31 August 2022

Section 3
1 September 2022 - 31 August 2023

Section 4
1 September 2023 - 31 August 2024

Project-related publications

  1. Tábi T., Pölöskei K.: The effect of processing parameters and Calcium-stearate on the ejection process of injection molded Poly(Lactic Acid) products. Periodica Polytechnica-Mechanical Engineering, 66, 17-25 (2022) 10.3311/PPme.18246
  2. Tábi T.: Tények és tévhitek a biopolimerekkel kapcsolatban - II. rész. Biohulladék, 14, 21-26 (2021)
  3. Krizsma Sz. G., Kovács N. K., Kovács J. G., Suplicz A.: In-situ monitoring of deformation in rapid prototyped injection molds. Additive Manufacturing, 42, 102001/1-102001/8 (2021) 10.1016/j.addma.2021.102001 IF=10.998 D1
  4. Szabó F., Suplicz A., Kovács J. G.: Development of injection molding simulation algorithms that take into account segregation. Powder Technology, 389, 368-375 (2021) IF=5.134 Q1
  5. Krizsma Sz., Suplicz A.: Additív gyártástechnológiával előállított fröccsöntő szerszámbetétek üzem közbeni deformációinak vizsgálata. Polimerek, , 155-160 (2021)
  6. Tábi T.: Fröccsöntött politejsav biopolimer sorozatgyárthatóságának elemzése. in 'XXIX. Nemzetközi Gépészeti Konferencia (OGÉT 2021) Románia. 2021.04.23.,200-203 (2021)
  7. Csézi G., Tábi T.: Orientált biopolimer szerkezetek vizsgálata. in 'XXIX. Nemzetközi Gépészeti Konferencia (OGÉT 2021) Románia. 2021.04.23.,101-105 (2021)
  8. Tábi T., Ageyeva T., Kovács J. G.: Improving the ductility and heat deflection temperature of injection molded Poly(lactic acid) products: A comprehensive review. Polymer Testing, 101, 107282/1-107282/36 (2021) 10.1016/j.polymertesting.2021.107282 IF=4.282 Q1
  9. Semperger O. V., Pomlényi P., Suplicz A.: Felület-bevonatolási eljárás T-RTM technológiához. Polimerek, 7, 186-192 (2021)
  10. Kirchkeszner Cs., Petrovics N., Tábi T., Magyar N., Kovács J., Szabó B. S., Nyiri Z., Eke Zs.: Swelling as a promoter of migration of plastic additives in the interaction of fatty food simulants with polylactic acid- and polypropylene-based plastics. Food Control, 132, 108354/1-108354/12 (2021) 10.1016/j.foodcont.2021.108354 IF=5.548 Q1
  11. Tábi T.: Tények és tévhitek a biopolimerekkel kapcsolatban - I. rész (másodközlés). Polimerek, 7, 298-301 (2021)
  12. Tábi T.: Tények és tévhitek a biopolimerekkel kapcsolatban - II. rész (másodközlés). Polimerek, 7, 337-340 (2021)

© 2014 BME Department of Polymer Engineering - Created by: Dr. Romhány Gábor