Determine The Effect Of Chemical Treatment To The Mechanical Properties Of Parts Produced Using FDM

Hasan, Nur Liyana (2019) Determine The Effect Of Chemical Treatment To The Mechanical Properties Of Parts Produced Using FDM. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The aim of this study is to determine the effect of chemical treatment to the mechanical properties of parts produced using FDM. FDM stands for Fused Deposition Modelling that is one of application from AM technology. Additive Manufacturing (AM) is a process of build an object from 3D model data, which from layer by layer process. AM technology is opposed subtractive manufacturing that are not involved in any machining processes. However, due to staircase effect, FDM obtained bad surface finish and this require post treatment process. In addition, there are a limited number of previous studies focusing onto the physical and mechanical properties of FDM parts that followed the ISO standards. Chemical treatment involves in post-processing process suggested to give good physical properties improvement such as surface finish to FDM parts. Mechanical properties are properties, which describe the behaviour of material or part for example strength, plastically and ductility. The objective of this study is to fabricate specimen parts using FDM according to respective ISO standards. Second is to determine the influence of chemical treatment to the surface roughness and mechanical properties for the parts includes compression, hardness and impact tests. Third is to analyse the internal behaviour of parts with the result of the compression, hardness and impact tests. Lastly, the visual observations for all specimens using Stereo Microscope were conducted in order to analyse internal behaviour of FDM parts. Based on the result obtained, value of average roughness increases from untreated to treated specimens. For mechanical tests, hardness value and impact strength are increases but the maximum stress in compression stress is decreases from untreated to treated specimens. In conclusion, these results provide comprehensive data of improvement and advancement of FDM application to manufacturing industries. This benefit to engineers, designers and consumers to embrace the usability of AM specifically in FDM.

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