VACUUM FUSED DEPOSITION MODELLING SYSTEM TO IMPROVE TENSILE STRENGTH OF 3D PRINTED PARTS

Authors

  • S. Maidin Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka
  • J. H. U. Wong Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka
  • A. S. Mohamed Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka
  • S. B. Mohamed Faculty of Innovative Design and Technology, Universiti Sultan Zainal Abidin, 21300 Kuala Nerus, Terengganu
  • R. A. Rashid Faculty of Languages and Communication, Universiti Sultan Zainal Abidin, 21300 Kuala Nerus, Terengganu
  • Z. I. Rizman Faculty of Electrical Engineering, Universiti Teknologi MARA, Dungun, Terengganu

DOI:

https://doi.org/10.4314/jfas.v9i6s.63

Keywords:

additive manufacturing, fused deposition modelling, vacuum system, mechanical strength.

Abstract

Functional parts require high a level of strength and the current Fused Deposition Modelling (FDM) cannot be fully utilized as the end used parts. The poor mechanical strength is caused by the incomplete layer bonding during the printing process. In the printing process, the interlayer bonding is made too quick thus the layers are not fully fused together causing the reduced tensile strength. This paper presents a possible solution to this problem by incorporating vacuum technology in FDM system to improve tensile strength of 3D printed specimens. In this study, a desktop FDM machine was placed and operated inside a low pressure vacuum chamber. The results obtained show an improvement of 12.83 % of tensile strength compared to the standard specimen. This paper concludes that the low pressure environment is useful in reducing the heat loss due to convection of air, hence directly improves the specimen’s tensile strength

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Published

2017-11-10

Issue

Section

Research Articles