Selective Laser Sintering of PA 2200 for Hip Implant Applications: Finite Element Analysis, Process Optimization, Morphological and Mechanical Characterization

Abstract

Polyamide 12 (PA 22000) is a well-known material and one of the most biocompatible materials tested and used to manufacture customized medical implants by selective laser sintering technology. To optimize the implants, several research activities were considered, starting with the design and manufacture of test samples made of PA 2200 by selective laser sintering (SLS) technology, with different processing parameters and part orientations. The obtained samples were subjected to compression tests and later to SEM analyses of the fractured zones, in which we determined the microstructural properties of the analyzed samples. Finally, an evaluation of the surface roughness of the material and the possibility of improving the surface roughness of the realized parts using finite element analysis to determine the optimum contact pressure between the component made of PA 2200 by SLS and the component made of TiAl6V4 by SLM was performed.

Effect of Additives and Print Orientation on the Properties of Laser Sintering-Printed Polyamide 12 Components

“…Păcurar et al [ 37 ] was engaged in the study of PA2200 material processed using LPBF technology, where the influence of the fracture surface related to the production parameters displayed using a scanning electron microscope (SEM) was demonstrated. The influence of the energy density on the porosity of a 3D product made of PA_2200 was also studied when the structure was monitored by SEM.…”

“…In the study [ 37 ], they monitored the effect of laser power on the properties of PA2200 material; they also monitored the positive effect of paraxylene solution on surface quality.…”

Potential of titanium based alloys in the biomedical sector and their surface modification techniques: A review

“…Moreover, the selection criterion of the aforenamed techniques depend on the material properties and applications. 94 Pa˘curar et al 95 were made prosthetic acetabular liner using SLM process (Ø = 69 mm), as shown in Figure 16.…”

“…Figure 16. Medical acetabular made up of Ti-6Al-4V by using SLM technique, reused with permission from Pa˘curar et al95 …”

Correction: Răzvan et al. Selective Laser Sintering of PA 2200 for Hip Implant Applications: Finite Element Analysis, Process Optimization, Morphological and Mechanical Characterization. Materials 2021, 14, 4240

“…The authors wish to make the following correction to their paper [1]: Incorrect Title There is an error in the title. The correct title of the article is "Selective Laser Sintering of PA 2200 for Hip Implant Applications: Finite Element Analysis, Process Optimization, Morphological and Mechanical Characterization".…”