Mechanical Properties Of Components Fabricated Via Low Cost Additive Manufacturing

Mohd Kamal, Mohd Faridz (2017) Mechanical Properties Of Components Fabricated Via Low Cost Additive Manufacturing. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The aim of this research is to study about the mechanical properties of acrylonitrile butadiene stryrene (ABS) which is widely used in 3D printing. The technique being used in this research is fused deposition modelling (FDM). It is widely known that the product made by open source 3D printer facing some problems related to the strength of the product. The current open source 3D printer can be improved in order to produce good quality of product. Based on the study, it is found that by applying pressure on the printed product, may enhance the quality of the product. Thus, the mechanical properties of ABS can be improved after applying the pressure on the ABS while printing the part. The roller is designed and installed to the nozzle of the printer. The design of the roller is selected through several stages including morphological chart and conceptual design. In order to determine the strength of the samples, there are several experiments are tested to determine the strength of the existing printed part as well by applying pressure using Kossel open source 3D printer. The parameters used to produce the samples are layer thickness, fill density and speed of printing. Fourteen samples are prepared for every types of printing method which is for printing the samples with normal Kossel 3D printer and printing the samples with applied pressure (roller) using Kossel 3D printer as well. The standard of dog bone sample used to print is ASTM D638. Next, tensile test, surface roughness test and porosity test were made. It was found that, the quality and strength of the product can be improved after applying pressure on the printed part while printing process.

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