Experimental investigation of process parameters for build time estimation in fdm process using rsm technique

Abstract

Effectiveness of any additive manufacturing process can be considerably enhanced by estimating optimal values of Build Time. Effect of contour width, raster width, raster angle, slice height, orientation and air gap on the BT requirements for the seven basic constructive solid geometry primitives is studied. Derivation, evaluation and validation of models is accomplished analytically and graphically using response surface methodology technique to deduce the effect of above parameters on the Build Time estimation for Fortus 250 mc modeler. This work establishes basic design principles for: (1) Estimation of Build Time estimation in given volume; (2) Different spatial orientations were evaluated for overall build-time optimization for Fused Deposition Modelling process using Fortus 250 mc modeler.