Laboratorija za Rapid Prototyping i Reverse Engineering

A. Fajić, Dž. Tufekčić, A. Topčić, J. Bejić, E. Cerjaković: " Effects of processing parameters on tensile strength of 3D printed parts”, 5th International Symposium, “Konstruisanje, oblikovanje i dizajn, KOD 2008”, Proceedings, format A4, pages 355÷358 /4 pages/, April 2008, Novi Sad, Serbia, CIP 658.512.2(082), COBISS.SR-ID 230213639, ISBN 978-86-7892-104-9

The outstanding essence of contemporary trade is mainly defined by globalization, whereby the function of time and its influence on further development plays a prominent function. At the same time the forehead mentioned factor in no lesser degree determnines the projection, manufacturing and last but not least the price of the end product it self.
Technologies of Rapid Prototyping –RP, within numerous of applications, represent significant step forward because they enable easy and early identification of constructive errors and their correction, i.e. they eliminate expensive phases, which so far were present in phases of new products forming.
The process of Three Dimensional Printing - 3DP, which is based on original MIT 3DP technology (Massachusetts Institute of Technology –MIT) and improved by Z Corporation nowadays it is intruded in direct and indirect parts manufacturing regardless its level of complexity.
Main driving factors in a real-life application of the printed models are their mechanical properties, dimensional precision and surface texture quality. Selections of powder and infiltration material are the main factors for the mechanical properties of printed parts. Furthermore, it is possible to achieve significant variations of the mechanical properties with variations in processing and post processing parameters for same powder. In this paper we are presenting research of the effects of the layer thickness, building direction and post processing on the tensile strength of three-dimensional printed models.