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Analysis of dimensional accuracy of two models of customized hip prostheses made of Polyamide powder by Selective Laser Melting Technology

M. TOTH-TASCAU1,* , D. I. STOIA1

Affiliation

  1. Faculty of Mechanical Engineering, Politehnica University of Timisoara, Timisoara, Romania

Abstract

The Rapid Prototyping (RP) technology allows fabrication of patient customized implants using data derived from Computer Tomography (CT). The CT data was used to replicate bone structures and finally create exact CAD models of the customized prostheses. These CAD models were then used by the (RP) machine to build the model components. The purpose of this study was to design two models of customized hip prostheses based on detailed computed tomography data, fabricate these models by Selective Laser Melting (SLM) technology and validate the obtained models based on dimensional accuracy analysis. The prototyped models were made of Fine Polyamide PA 2200 powder..

Keywords

Rapid prototyping, Selective Laser Melting, Dimensional accuracy, Influence factor, Total hip prosthesis, CAD modelling.

Citation

M. TOTH-TASCAU, D. I. STOIA, Analysis of dimensional accuracy of two models of customized hip prostheses made of Polyamide powder by Selective Laser Melting Technology, Optoelectronics and Advanced Materials - Rapid Communications, 5, 12, December 2011, pp.1356-1363 (2011).

Submitted at: April 22, 2011

Accepted at: Nov. 24, 2011