EVALUATION OF IMPACT PROPRIETIES OF 3D PRINTED MATERIALS

Laszlo RACZ, Mircea Cristian DUDESCU

Abstract


The aim of this article is to analyze the influence of infill percentage and infill pattern on the impact toughness of parts printed using the fused deposition modeling method. The mechanical behavior of the 3D printed materials under dynamic load was tested by Charpy impact test on standard specimens to find out the impact resilience of the samples. Influence of the printing parameters on the resilience of the samples was studied using two sets of specimens. The first set of samples where printed with the same infill pattern related to the longitudinal axis of the sample and a various infill percentage: 20%, 40%, 60%, 80% and 100%. The second set of samples were manufactured with an infill rate of 100%, but using various infill patterns. Impact resilience if 3D printed samples are increasing together with the infill rate, a noticeable improvement occurs when the infill range is passing over the 40%. Impact tests indicate that beside the infill rate the infill pattern is seriously influencing the result, the best result can be obtained when the printing direction of the pattern is transversal in relation to the impact load.

Full Text:

PDF

References


Ziemian, C., M. Sharma, and S. Ziemian, Anisotropic mechanical properties of ABS parts fabricated by fused deposition modelling, in Mechanical engineering. 2012, InTech.

Tymrak, B., M. Kreiger, and J.M. Pearce, Mechanical properties of components fabricated with open-source 3-D printers under realistic environmental conditions. Materials & Design, 2014. 58: p. 242-246.

Alvarez, C., et al., Investigating the influence of infill percentage on the mechanical properties of fused deposition modelled ABS parts. Ingeniería e Investigación, 2016. 36(3): p. 110-116.

Rankouhi, B., et al., Failure analysis and mechanical characterization of 3D printed ABS with respect to layer thickness and orientation. Journal of Failure Analysis and Prevention, 2016. 16(3): p. 467-481.

Melenka, G.W., et al., Evaluation and prediction of the tensile properties of continuous fiber-reinforced 3D printed structures. Composite Structures, 2016. 153: p. 866-875.

Zou, R., et al., Isotropic and anisotropic elasticity and yielding of 3D printed material. Composites Part B: Engineering, 2016. 99: p. 506-513.

Liljenhjerte, J., P. Upadhyaya, and S. Kumar, Hyperelastic strain measurements and constitutive parameters identification of 3d printed soft polymers by image processing. Additive Manufacturing, 2016. 11: p. 40-48.

Górski, F., W. Kuczko, and R. Wichniarek, Impact strength of ABS parts manufactured using Fused Deposition Modeling technology. Archives of Mechanical Technology and Automation, 2014. 31(1): p. 3-12.

Caminero, M., et al., Impact damage resistance of 3D printed continuous fibre reinforced thermoplastic composites using fused deposition modelling. Composites Part B: Engineering, 2018. 148: p. 93-103.


Refbacks

  • There are currently no refbacks.


JOURNAL INDEXED IN :