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Modeling and Optimization of Tensile Strength of ABS Parts Manufactured by the Fused Deposition Modeling Process

In the last two decades additive manufacturing (AM) technology has been emerged as a powerful fabrication method to obtain finished components within a short span of time, without any tooling requirements and minimal human interface. Fused Deposition Modeling (FDM) is one of the most used AM techniques. It has an ability to produce a complex functional geometries with a good properties. Properties mainly depend on process parameters and can be improved by setting parameters at appropriate levels. In this paper, mathematical models for prediction of ultimate tensile strength (UTS) and cost were developed. Process parameters whose influence was analyzed are top and bottom surface layers number, fill spacing and layer resolution. Experiments were conducted on specimens manufactured from Acrylonitrile butadiene styrene (ABS) material. Design Expert software and ANOVA analysis were used for mathematical modelling and optimization and based on that process parameters that lead to maximal tensile strength and minimal cost were defined. Thus obtained results will have practical meaning for users involved in FDM additive manufacturing process.

Fused Deposition Modeling ; Tensile Strength ; Cost ; Modeling ; Optimization

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