Optimization Of Dimensional Accuracy Of Fused Deposition Modeling (FDM) Printed Part Using Taguchi Method

Mohamad, Abdul Rashid (2018) Optimization Of Dimensional Accuracy Of Fused Deposition Modeling (FDM) Printed Part Using Taguchi Method. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The part produced by 3D printing has its accuracy varies with the changes in the process parameters of the machine such as quality, temperature, speed, and some others. Taguchi method was applied in order to achieve the optimum accuracy of the printed part. It is a simplified yet powerful method for experimental design using the orthogonal array method. In this project, an orthogonal array of L’9 is used with four parameters which are a print pattern, orientation, support angle, and sidewalk offset. The experiment was set up by involving the process of part design by using SolidWorks. Then nine sample has undergone a process of measuring by Coordinate Measuring Machine (CMM). Thus, the result of a measurement of nine samples has to be compared to CAD data to get the percentage of accuracy. Besides that, the measurement result will have analysed using Taguchi method to determine the default and optimum parameter condition. Then we compare the result from both parameter data. The result shows that optimum parameter condition for this cube pro process is honeycomb for the print pattern, 0 y-axes for orientation, 90 degrees for support angle and 0.4 for sidewalk offset. The print pattern has the most significant effect compared to the orientation, support angle, and sidewalk offset on the dimension accuracy of the part. The shrinkage data value between default and optimum parameter shows that the shrinkages reduce from 0.619 mm to 0.429 mm. An improvement of 0.190 mm with 44.3 % of percentage has achieved by applying the optimized parameter.

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