Abstract
Selective laser sintering (SLS) is a powder–based rapid prototyping (RP) technology in which parts is built by CO2 laser. This research work presents an optimal method to determine the best processing parameter for SLS in order to fabricate parts with enhanced component integrity and reduced overall costs using stainless steel material. Moreover, the optimum process parameters, such as layer thickness, hatch spacing, laser power and part bed temperature are obtained by adopting the Taguchi method based on the Design of Experiment model for better surface finish, dimensional accuracy and hardness. Experiments are planned by using Taguchi's L12 orthogonal array. The level of importance of the process parameters are determined by using analysis of variance (ANOVA). The experimental results confirmed that the validity of the used Taguchi method for enhancing the SLS performance and optimising the process parameters in the stainless steel material based SLS rapid manufacturing process.
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