Development of decision making process for fused deposition modeling machines selection

Chew, Chee Seng (2017) Development of decision making process for fused deposition modeling machines selection. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This report was study about integration of AHP and MOORA approach in selection of best mid-end Fused Deposition Modeling (FDM) machine. The selection for the best Fused Deposition Modeling (FDM) machine based on required specification can be very indecisive and very important to make an appropriate decision with variety of criteria and attributes. A suitable machine used for required Fused Deposition Modeling (FDM) process can enhance machine proficiency, performance, quality as well as reducing production cost. The main objective of the project was to determine the suitable machine by identifying the important criteria as required using integrated AHP-MOORA as framework in mid-end FDM machine selection. The machine selection was based on the existing specifications and collection of database about mid-end FDM machines in the market. The main criteria that required for the mid-end Fused Deposition Modeling (FDM) machine selection could be classified into four aspects such as Performance, Cost, Quality, and Capacity. In the aspect of machine’s performance, there were three sub-criteria to be considered such as Tensile Strength (TS), Elongation (E), and Heat Deflection Temperature (HDT). Meanwhile, Machine Cost (MhC) and Material Cost (MC) were significant sub-criteria in the aspect of cost. However, Print Parameter (PP) and Build Size (BS) were sub-criteria affecting the quality and capacity respectively. Six candidates machine were selected based on the requirement mentioned. Firstly, AHP approach was used to determine the weight of the selection criteria. MOORA approach was then used to perform the ranking of alternatives. The integrated AHP-MOORA approach was proven very successful in multi-criteria decision-making processes which involved many criteria and alternatives in mid-end FDM selection. In conclusion, the candidate machines, Machine 5, CubePro by manufacturer 3D Systems was selected as the best alternative based on its performance, quality, cost, and capacity perspective by using integrated AHP-MOORA approach.

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