Browsing by Author "Bagheri, Ali"
Now showing items 1-8 of 8
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3D printing of porous scaffolds with controlled porosity and pore size values
(Multidisciplinary Digital Publishing Institute (MDPI), 2018-08-25)
Article
Open Access3D printed scaffolds can be used, for example, in medical applications for simulating body tissues or for manufacturing prostheses. However, it is difficult to print porous structures of specific porosity and pore size ... -
Contribution to the manufacture of porous structures for prostheses by means of additive manufacturing extrusion processes
(Universitat Politècnica de Catalunya, 2021-02-12)
Doctoral thesis
Open Access(English) In recent years, the use of prostheses has widely increased due to their ability to replace defective parts of the skeleton. Among artificial implants, hip joint plays a critical role in the human body since it ... -
Determination of the Elasticity Modulus of 3D-Printed Octet-Truss Structures for Use in Porous Prosthesis Implants
(Multidisciplinary Digital Publishing Institute (MDPI), 2018-11-29)
Article
Open AccessIn tissue engineering, scaffolds can be obtained by means of 3D printing. Different structures are used in order to reduce the stiffness of the solid material. The present article analyzes the mechanical behavior of ... -
Effect of printing parameters on dimensional error, surface roughness and porosity of FFF printed parts with grid structure
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-04-09)
Article
Open AccessExtrusion printing processes allow for manufacturing complex shapes in a relatively cheap way with low-cost machines. The present study analyzes the effect of printing parameters on dimensional error, roughness, and porosity ... -
Evaluation of porosity in 3D printed trabecular bone structures for prostheses
(Institute of Physics (IOP), 2021)
Article
Open AccessHip prostheses require an external porous area in order to fix them by means of osseointegration. Different structures can be printed in order to favour bone fixation, such as octet-truss or trabecular, among others. In ... -
Influence of infill and nozzle diameter on porosity of FDM printed parts with rectilinear grid pattern
(2019)
Article
Open AccessThe aim of the paper is to analyze the effect of nozzle diameter and infill on porosity and pore size of FDM printed specimens with rectilinear grid pattern. Two different nozzle diameters (0.2 and 0.4 mm), as well as four ... -
Influence of structure support printing parameters on surface finish of PLA hemispherical cups for emulation of ceramic hip prostheses
(Elsevier, 2018)
Conference lecture
Open AccessHemispherical hip ceramic prostheses require certain degree of porosity on their external surface so as to fix them by means of osteointegration. This can be achieved with porous mesostructures. In contrast, internal surface ... -
Modelling of porosity of 3D printed ceramic prostheses with grid structure
(2017-01-01)
Article
Open AccessFixation of ceramic prostheses by means of osteointegration implies use of porous structures in which bone tissues can grow. Such structures require total porosity values between 50 and 75 %, and pore size values between ...
