Effect of Fabrication Parameters and Material Features on Tensile Strength of FDM Built Parts

摘要

This paper presents experimental investigations on influence of fabrication parameters and material features viz., layer thickness, build orientation, processing material and processing quality on tensile strength of parts built by fused deposition modelling (FDM). The specimen is designed according to GB/T 1040.2/1BA/1 which maintains the tensile strength test. And the experimental factor levels are setup on account of the fabrication parameters and processing materials of the processing equipment for FDM. Then Taguchi's parameter design is applied to find optimum factor levels to maximize the tensile strength of FDM built parts. As the experiment plan is designed base on orthogonal test design with mixed levels, tensile strength of each test is obtained and the signal to noise ratio which defined to evaluate the influence and variation is obtain as well. Then main effect plot is drawn and analysis of variance is performed to find optimal level of fabrication parameters to maximize the tensile strength of FDM built parts. Finally, the effect of fabrication parameters and material features on tensile strength of FDM built parts are obtained.