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Wykorzystanie projektowania generatywnego w procesie projektowania wytwarzanego przyrostowo, personalizowanego implantu kości jarzmowej

Sekuła Kinga, Detyna Jerzy, Szymczyk-Ziółkowska Patrycja

Aktualne Problemy Biomechaniki

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2023

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z. 23

25--33

PL

Poniższa praca prezentuje możliwość zastosowania projektowania generatywnego w procesie projektowania implantów personalizowanych. Zaproponowano dwie geometrie personalizowanego implantu kości jarzmowej, zaprojektowanego z wykorzystaniem projektowania generatywnego. Wyniki tego badania wskazują, że integracja metod projektowania generatywnego może znacznie poprawić wydajność procesów projektowania implantów personalizowanych. Korzyści obejmują lepszą wydajność implantu, niższe koszty produkcji i krótsze cykle iteracji projektu.

EN

The following work explores the application of generative design to the traditional patient-specific implant design process. Two geometries of a patient-specific zygomatic implant designed using generative design were proposed. The results of this study show that the integration of generative design methods can significantly improve the efficiency of patient-specific implant design processes. Benefits include improved implant performance, reduced manufacturing costs and shorter design iteration cycles.

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The influence of Material Extrusion process parameters on the porosity and mechanical properties of PLA products for medical applications

Rusińska Małgorzata, Gruber Piotr, Ziółkowski Grzegorz, Łabowska Magdalena, Wilińska Karolina, Szymczyk-Ziółkowska Patrycja

Acta of Bioengineering and Biomechanics

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2023

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Vol. 25, no. 3

EN

The study addresses the growing need for personalized medicine and cost-effective manufacturing by investigating additive manufacturing (AM). It employs the Design of Experiments (DOE) to explore how fused filament fabrication (FFF) parameters affect porosity and mechanical properties of medical-grade polylactide (PLA) samples.

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Influence of bioactive metal fillers on microstructural homogeneity of PA12 composites produced by polymer Laser Sintering

Gruber Piotr, Ziółkowski Grzegorz, Olejarczyk Michał, Grochowska Emilia, Hoppe Viktoria, Szymczyk-Ziółkowska Patrycja, Kurzynowski Tomasz

Archives of Civil and Mechanical Engineering

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2022

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Vol. 22, no. 3

art. no. e117

EN

In this paper, polyamide 12 (PA12) blends with three types of metallic fillers are tested, which differ in the type of material and its’ morphology. Low content mixtures are taken into consideration (0.5, 1.0, 2.0, 5.0 wt%), since a low impact on mechanical properties along with obtaining antibacterial properties are desired. The investigation focuses on filler distribution as well as the influence on microstructural homogeneity of the base material after processing with polymer Laser Sintering. Moreover, the influence of the filler content on the mechanical properties and fracture behaviour were examined. Processability PA12 with bioactive metal fillers was confirmed, and no significant changes in ductile behaviour of PA12 were observed. An in-depth analysis of the effect of the filler on microstructural homogeneity was conducted.

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Investigation of porosity behavior in SLS polyamide-12 samples using ex-situ X-ray computed tomography

Ziółkowski Grzegorz, Grochowska Emilia, Kęszycki Dawid, Gruber Piotr, Hoppe Viktoria, Szymczyk-Ziółkowska Patrycja, Kurzynowski Tomasz

Materials Science Poland

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2021

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Vol. 39, No. 3

436--445

EN

The paper presents a detailed description of the method of carrying out static tensile tests in ex-situ X-ray computed tomography (XCT) conditions. The study compares samples manufactured with the use of additive technology in two orientations, horizontally and vertically, which correspond to the in-layer and between-layer sintering mechanisms. Both the fracture mechanism and porosity behavior differed significantly for the two manufacturing directions. The conducted analysis made it possible to compare the changes in porosity, the number of pores, and also their diameters and shape before and after the tensile test. This allows for in-depth identification and better understanding of the phenomena occurring during the static tensile test of polyamide-12 samples manufactured using selective laser sintering (SLS) technology.

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Corrosion resistance characteristics of a Ti-6Al-4V ELI alloy fabricated by electron beam melting after the applied post-process treatment methods

Szymczyk-Ziółkowska Patrycja, Hoppe Viktoria, Gąsiorek Jolanta, Rusińska Małgorzata, Kęszycki Dawid, Szczepański Łukasz, Dudek-Wicher Ruth, Detyna Jerzy

Biocybernetics and Biomedical Engineering

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2021

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Vol. 41, no. 4

1575--1588

EN

Post-process modifications in the form of Hot Isostatic Pressing or surface treatment methods such as sandblasting ormachining have been widely used in the case of improving the quality of elements manufactured with the use of EBM (Electron Beam Melting). The corrosion resistance of titanium alloys for medical applications is a key and critical aspect for the use of personalized components as implants, especially when investigating the issue of additive manufacturing. This paper presents the results of research on the influence of HIP processing on the functional properties of the material produced with the use of EBM, considering the aspect of reconstructive medicine. Both the influence of surface modification and the influence of post-process treatment on microstructural, mechanical, and corrosion properties were investigated. A wide range of research has been carried out using scanning and transmission electron microscopy methods, in combination with three-point static bending tests and performing corrosion tests using potentiodynamic polarization and electrochemical spectroscopic impedance (EIS) in Hank‘s solution. The results showed that HIP treatment has a positive effect on the corrosive properties of the material in terms of increased corrosion resistance compared to materials not subjected to this type of post-process treatment. This fact is also related to the change of the alloy microstructure and the change of mechanical properties towards increased plasticity. In the case of the production of personalized implants with the use of EBM, it is worth considering the benefits of the HIP.

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New possibilities for in situ CT analysis of additive manufactured samples

Ziółkowski Grzegorz, Treter Grzegorz, Tokarczyk Emilia, Szymczyk-Ziółkowska Patrycja

Technical Transactions

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2020

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Vol. 117, iss. 1

art. no. e2020028

EN

Industrial Computed Tomography (CT) is a broadly used measurement method allowing for quality control of objects produced using additive manufacturing methods. The combination of tensile tests and simultaneous 3D imaging of the behavior of an object under a particular force (i.e. in situ examination – during the process) significantly broadens the possibilities of analyzing objects with a complex internal geometry. The purpose of this paper is to present the author’s project of a mini testing machine, to verify its functioning with regards to a static testing machine, and to present the initial in situ examination results for polymer samples.

PL

Tomografia komputerowa (CT) jest obecnie powszechnie stosowaną metodą pomiarową pozwalającą na kontrolę jakości obiektów wytwarzanych z wykorzystaniem technologii przyrostowych. Połączenie badań wytrzymałościowych z jednoczesnym trójwymiarowym obrazowaniem zachowania się obiektu pod wpływem działania określonej siły (tzw. badania in situ – w procesie) znacznie rozszerza możliwość analizy obiektów o złożonej strukturze przestrzennej. Celem niniejszej pracy jest przedstawienie autorskiego projektu minimaszyny wytrzymałościowej oraz weryfikacja poprawności jej działania w odniesieniu do komercyjnych rozwiązań, a także przedstawienie wstępnych wyników badań in situ dla przestrzennych próbek polimerowych.