Investigations on acute angle parts fabricated fusion deposition modelling parts volumetric shrinkage and surface roughness

Abstract

This research paper focuses on analysing the two important quality determents namely surface roughness and volumetric shrinkage of fusion deposition modelling (FDM) parts with the selected process parameters, print speed, layer thickness and angle of inclination. These response factors are determined using minimum number of experiments designed by face centered central composite design (FCCCD) of response surface methodology (RSM). The test specimens fabricated using FDM machine and measurements have conducted to estimate surface roughness and volumetric shrinkage. The output responses are numerically modelled using analysis of variance (ANOVA) and presented as a function of three input process parameters.