TY - JOUR

T1 - Optimization of the 3D Printing Parameters for Tensile Properties of Specimens Produced by Fused Filament Fabrication of 17-4PH Stainless Steel

AU - Godec, Damir

AU - Cano Cano, Santiago

AU - Holzer, Clemens

AU - Gonzalez-Gutierrez, Joamin

N1 - Publisher Copyright: © 2020 by the authors.

PY - 2020/2/8

Y1 - 2020/2/8

N2 - Fused filament fabrication (FFF) combined with debinding and sintering could be an economical process for three-dimensional (3D) printing of metal parts. In this paper, compounding, filament making, and FFF processing of feedstock material with 55% vol. of 17-4PH stainless steel powder in a multicomponent binder system are presented. The experimental part of the paper encompasses central composite design for optimization of the most significant 3D printing parameters (extrusion temperature, flow rate multiplier, and layer thickness) to obtain maximum tensile strength of the 3D-printed specimens. Here, only green specimens were examined in order to be able to determine the optimal parameters for 3D printing. The results show that the factor with the biggest influence on the tensile properties was flow rate multiplier, followed by the layer thickness and finally the extrusion temperature. Maximizing all three parameters led to the highest tensile properties of the green parts.

AB - Fused filament fabrication (FFF) combined with debinding and sintering could be an economical process for three-dimensional (3D) printing of metal parts. In this paper, compounding, filament making, and FFF processing of feedstock material with 55% vol. of 17-4PH stainless steel powder in a multicomponent binder system are presented. The experimental part of the paper encompasses central composite design for optimization of the most significant 3D printing parameters (extrusion temperature, flow rate multiplier, and layer thickness) to obtain maximum tensile strength of the 3D-printed specimens. Here, only green specimens were examined in order to be able to determine the optimal parameters for 3D printing. The results show that the factor with the biggest influence on the tensile properties was flow rate multiplier, followed by the layer thickness and finally the extrusion temperature. Maximizing all three parameters led to the highest tensile properties of the green parts.

KW - Fused Filament Fabrication

KW - highly filled polymer

KW - Optimization

UR - https://www.mdpi.com/1996-1944/13/3/774

U2 - https://doi.org/10.3390/ma13030774

DO - https://doi.org/10.3390/ma13030774

M3 - Article

VL - 13.2020

JO - Materials

JF - Materials

SN - 1996-1944

IS - 3

M1 - 774

ER -