Study on the polymer material infiltrating metallic parts by selective laser sintering of 3D printing
ISSN: 1355-2546
Article publication date: 31 October 2018
Issue publication date: 21 November 2018
Abstract
Purpose
Metal green parts fabricated by indirect selective laser sintering (SLS) have lower mechanical properties, and thus, they cannot satisfy practical application. To enhance their performance, two polymer resins were compounded as a modified material to infiltrate into the metal parts by SLS.
Design/methodology/approach
The viscosity and glass-transition temperature were tested by a viscometer and differential scanning calorimetry, respectively. The microstructure and morphology of the interface of parts by polymer resin infiltrated were observed to be using scanning electron microscopy. The tensile strength of sample parts was tested, too. The temperature tolerances of two mass ratio polymer materials were tested and compared by thermo-gravimetric analysis (TGA).
Findings
Compared to those without being polymer material infiltrated, the results of test showed that the tensile strength of the metallic parts is enhanced obviously, about four times. In addition, the analysis of TGA showed that the resin of mass ratio of 2:1 can be endured up to 200° and can be used as infiltrating materials for metal parts.
Originality/value
Therefore, plastic injection mold and function part can be manufactured by this method.
Keywords
Acknowledgements
The authors acknowledge the financial support from National Natural Science Foundation of China (No.51506156) and Scientific and Technological Research Projects of Hubei Province (No.B2016079). The authors also acknowledge the Analytical and Testing Center of HUST for their analytical work.
Citation
Chen, J., Wan, N., Li, J. and He, Z. (2018), "Study on the polymer material infiltrating metallic parts by selective laser sintering of 3D printing", Rapid Prototyping Journal, Vol. 24 No. 9, pp. 1539-1543. https://doi.org/10.1108/RPJ-05-2016-0073
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited