Effect of Dimensional Accuracy of Parts Manufactured Using Fused Deposition Modelling Process

Abstract

This paper presents the results of effect of Fused modelling process which is highly efficient rapid prototyping approach that’s makes it possible to rapidly generate even a much-complicated part. It includes research of additive technology using thermoplastics as a build material, namely Fused Deposition Modelling (FDM). Aim of the study was to identify the relation between basic parameter of the FDM process model orientation during manufacturing and a dimensional accuracy and repeatability of obtained products. A set of samples was prepared they were manufactured with variable process parameters and they were measured using 3D scanner. This paper also presents effect of deviation control parameter step-size of Creo modelling software on surface roughness, dimensional Accuracy, circularity and compression strength of ASTM standard test specimens modelled by FDM process from 3D printer from ABS material. Effect of deviation control parameter step size on surface roughness, circularity at horizontal, vertical and 45 degree print orientation. Effect of slicing parameter on surface roughness and circularity is also measure. As step size increases surface roughness increases and circularity decreases. Horizontal print orientation gives better surface finish whereas vertical print orientation gives better circularity.