Impact of input parameters variability on surface roughness and density on laser sintered AlSi10Mg specimens Online publication date: Tue, 12-Oct-2021
by Ritesh Sharma; Sanjeev Kumar; Rajeev Kumar Saha
International Journal of Productivity and Quality Management (IJPQM), Vol. 34, No. 1, 2021
Abstract: Process parameters significantly influence the properties of the specimen in any manufacturing system. Laser sintering is no exception when it comes to properties like surface roughness; density or mechanical properties. The present study is focused on evaluating the influence of process parameters specifically laser power, scan speed, hatch spacing and orientation on part properties namely density and surface roughness of the specimens sintered on selective laser melting of AlSi10Mg alloy. To delineate the parameters, the design of experiments was created using RSM. The data so received by conducting the experiments and observing the readings of the outcomes under study were analysed using ANOVA analysis. The optimisation was carried out using MATLAB software with optimisation toolbox. Hatch spacing proved to be the major contributor for influencing both density as well as surface roughness when the final outcomes were investigated.
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