Investigation on flexural and compression strength vacuum assitsed fuse deposition modeling system specimens

Mohd Nor, Nur Madiah (2018) Investigation on flexural and compression strength vacuum assitsed fuse deposition modeling system specimens. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

	Text (24 Pages) Investigation On Flexural And Compression Strength Of Vacuum Assisted Fuse Deposition Modeling System Specimens.pdf - Submitted Version Download (969kB)
	Text (Full Text) Investigation on flexural and compression strength vacuum assitsed fuse deposition modeling system specimens.pdf - Submitted Version Restricted to Repository staff only Download (2MB)

Abstract

The aim of this project is to determine the optimum parameters for flexural and compression strength. Optimum parameters used are divided into 2 dependent variables, the infill density of specimen and vacuum pressure. Each of these parameters is set into 4 level of number which are 25%, 50%, 75% and 100% for infill density and also 21 inHg, 24 inHg, 27 inHg and 30 inHg for vacuum pressure. The specimens are fabricated by using one of FDM machine, the Up Plus 2 machine. Designs of these specimens are created with CAD software which is SolidWork and are needed to convert first into STL file format. Only after that it can be send to FDM machine for next step to produce the printed parts. In this project, it requires only one types of material to be focused into to produce the specimens, and ABS is selected. As soon as the specimens are done printed out, two different types of test were be carried out to determine the optimum parameters needed for both flexural and compression strength. A total 16 experiment runs with 3 average specimens will be taken for one number of run. Since there are two different tests were held, 48 printed specimens in total were produced for each testing conducted. Lastly, the final optimum result is 39.7594 N/mm2 at 30 inHg/100% for flexural stress and 5.2678% at 27 inHg/75% for flexural strain while the highest result for compression strength is stated as 38.6875 N/mm2 at 27 inHg/100% for stress and 34.8444% at 24 inHg/100% for strain. Besides that, the surface of the samples also been analysed by Optical Microscope (OM). The result of the analysis showed that the specimens had some bubbles and there were obviously seen gaps between layers of the specimens.

Actions (login required)

View Item