Experimental Investigation on Influence of Process Parameters in Selective Laser Sintering on Roundness Using Taguchi Medthod
Journal Title: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) - Year 2017, Vol 7, Issue 6
Abstract
Additive Manufacturing is emerging latest trends, in todays industrial needs. The 3D model is built by using the Catia V5 and exported to Rapid Prototyping machine where the file is saved by. stl extension and the file repair was done by removing the facets using magics software. The 3D model is sliced into layers and build layer by layer using PA2200 material in powder form and sintered with co2 laser by controlling the process parameters. This research investigates the effect of the roundness of the prototype model built on Rapid Prototyping machine by optimal selection of process parameters like laser power, layer thickness and temperature by Taguchi design of experiments approach L9 Orthogonal array was selected lower-the-better signal-to-noise S/N ratio. Analysis of Variance (ANOVA) with regression model is also conducted and most influential parameter in decreasing order Laser power, Layer thickness, and temperature were obtained and the prototypes are tested on CMM (coordinate measuring machine) both the experimental and model prediction results are within close tolerance of +/- 0.029 (29 microns) on the roundness.
Authors and Affiliations
M. Naveen Kumar, Sriram Venkatesh, M. Manzoor Hussain
Keywords
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