Some aspects of prototyping oversized parts through PolyJet technology

Abstract

The paper presented a series of experiments to improve the performance of rapid prototyping processes. The paper presents aspects regarding the realization of polymeric parts by PolyJet rapid prototyping technology. Achieving oversized parts on printers whose print size is small is subject to additional demand for the designer and the technology engineer who designs the printing strategy. Small parts segmentation is a solution, provided that after gluing the parts with adhesives recommended by the manufacturer, the general assembly acts as a one-piece piece – this is the ideal case. An acceptable solution is that the overall assembly has at least 70-80% of the properties of a part made up of a single piece. In the present work several sets of specimens were used for the experiment and they were joined together. Their properties were compared to one-piece specimens. Finally, the useful conclusions for designers and technologists are presented.

Method for Segmentation and Hybrid Joining of Additive Manufactured Segments in Prototyping Using the Example of Trim Parts

“…The overall aim of achieving the mechanical characteristics of a solid part needs further research. With the parametric design and the results of existing research on the bonding of additive materials [7,13,19], the prerequisites for a bond that achieves the strength of the material were established.…”

“…Carausu et al [19] stressed the advantage of joining geometries with a form-fitting connection or the use of positioning pins compared to the indefinite joining of two bodies. They stated that such a design enables unambiguous assembly, ensures compliance with tolerances, and increases part stiffness.…”