Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/157721
Title: Study on uniaxial tensile and low-cyclic fatigue behaviour of Polyamide 12 fabricated by Multi-Jet Fusion
Authors: Ng, Wei Hong
Keywords: Engineering::Mechanical engineering::Mechanics and dynamics
Issue Date: 2022
Publisher: Nanyang Technological University
Source: Ng, W. H. (2022). Study on uniaxial tensile and low-cyclic fatigue behaviour of Polyamide 12 fabricated by Multi-Jet Fusion. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/157721
Project: B065
Abstract: The MultiJet Fusion technology (MJF) is a subset of Additive Manufacturing, developed by Hewlett-Packard Development Company, L.P, commonly known as HP. It is undergoing intensive research as I am writing this report. The MultiJet Fusion technology was introduced to the market in 2016 and is meant to produce large batches with high functional complexity while reducing unit costs. However, it is discovered that the construction orientation affects the fatigue performance of the printed PA12 specimen, such as in X-orientation (horizontal) and Z-orientation (vertical). Hence, this project aims to study the anisotropic mechanical properties and fatigue behaviour of the MJF PA12 that are specifically built in different orientations as well as to study the mechanical properties of PA12 by Multi-Jet Fusion based on fatigue analysis. Experiments would be conducted with tensile and fatigue with a holding time. Lastly, the failure surface of specimens are analysed by Optical Microscopy and Scanning Electron Microscopy (SEM) to analyse the void morphology, void distribution, and sintering interfaces. The porosity and void findings performed by Micro-CT are attached in the appendix.
URI: https://hdl.handle.net/10356/157721
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:MAE Student Reports (FYP/IA/PA/PI)

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