Original scientific paper

https://doi.org/10.17559/TV-20181109115954

Dimensional and Shape Accuracy of Foundry Patterns Fabricated Through Photo-Curing

Paweł Zmarzły* orcid.org/0000-0003-3717-1500 ; Kielce University of Technology, Al. 1000-lecia P. P. 7, 25-314 Kielce, Poland
Tomasz Kozior orcid.org/0000-0002-8922-4187 ; Kielce University of Technology, Al. 1000-lecia P. P. 7, 25-314 Kielce, Poland
Damian Gogolewski orcid.org/0000-0003-2653-2980 ; Kielce University of Technology, Al. 1000-lecia P. P. 7, 25-314 Kielce, Poland

Abstract

This paper deals with the potential use of the PolyJet Matrix (PJM) technology and digital materials to fabricate foundry patterns. The primary purpose of the study was to assess the dimensional and shape accuracy of additively manufactured objects by determining the draft angle as well as the roundness, waviness and roughness parameters. The experiments were conducted for cylindrical samples printed using VeroWhite liquid polymer resin. The analysis focused on the relationship between the build direction and the geometry and surface finish of prints. Three different orientations, i.e. 0º, 45º and 90º, were considered. The surface texture analysis involved comparing the statistical, graphical and numerical data, including calculation results obtained with the wavelet transform method. The findings confirm that the build direction has a significant effect on the dimensional and shape accuracy of prints and that the PJM technology can be used to fabricate precise foundry patterns, especially in investment (lost-wax) casting.

Keywords

additive manufacturing technologies; foundry pattern; PJM; technological heredity; wavelet transform; waviness deviations

Hrčak ID:

228502

URI

https://hrcak.srce.hr/228502

Publication date:

27.11.2019.

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