A study to determine the best combination of FDM process parameters using taguchi method to optimize the build time and surface quality

Ng, Mee Chin (2016) A study to determine the best combination of FDM process parameters using taguchi method to optimize the build time and surface quality. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Taguchi Method is an effective tool introduced for the optimization of a product or process quality. The ABS product produced by Fused Deposition Modeling (FDM) has its own unique result which varies with the changes of the process parameters of the machine such as build orientation, layer thickness and raster angles. The performance of the part produced via Stratasys FDM 400 MC machines was observed for build time and measured for surface roughness. In order to achieve the optimum performance of the produced part, the Taguchi Method was employed. In this project, an orthogonal array of L9 (33) was used and 9 pieces of samples were determined for 3 parameters namely: build orientation, layer thickness and raster angles with 3 levels each. The sample was designed using SolidWorks and fabricated using Stratasys FDM 400 MC machines. The samples were observed for build time and then tested for surface roughness using Mitutoyo Surftest SJ 301. The results were obtained and data was analysed. The data shows that the samples with parameters combination of XY orientation, layer thickness of 0.03302 cm and raster angle of 900 achieved the shortest build time while the data shows that the samples with parameters combination of XY orientation, layer thickness of 0.01778cm and raster angle of 300 achieved the lowest average surface roughness, Ra value respectively. Hence, this results show that the properties of the product produced using Stratasys FDM 400 MC vary with the different combination of process parameters and the Taguchi Method provides the solution of determining the optimum combination with minimum number of experiment.

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