RESEARCHES REGARDING THE STUDY OF THE DIMENSIONAL PRECISION OF THE GEOMETRICAL ELEMENTS OF TYPE SHAFT-HOLE OBTAINED BY FUSED DEPOSITION MODELLING

Abstract

This article presents some researches concerning the dimensional precision of the geometrical elements of type shaft-hole obtained by fused deposition modelling. In the paper, the FDM technology issues are exposed and the need to have a vision about the influence of some technological and geometrical parameters on the precision of the geometrical surfaces, internal or external. Firstly, two virtual prototypes were maids in Catia V5, one for experiment the influences for the internal surfaces and another for the external surfaces. After that, virtual prototypes were imported in the machine software in order to obtain the prototyping code. Based on the code obtained with the printer software, the parts were prototyped, used Ultimaker Tough PLA material. All elements were measured with a caliper and a database was created. The results were interpreted in order to establish the influence on the dimensional precision of the geometrical elements.