Mohamed, Omar Ahmed;
Masood, Syed Hasan;
Bhowmik, Jahar Lal
The resistance of polymeric materials to time-dependent plastic deformation is an important requirement of the fused deposition modeling (FDM) design process, its processed products, and their application for long-term loading, durability, and reliability. The creep performance of the material and part processed by FDM is the fundamental criterion for many applications with strict dimensional stability requirements, including medical implants, electrical and electronic products, and various automotive applications. Herein, the effect of FDM fabrication conditions on the flexural creep stiffness behavior of polycarbonate–acrylonitrile-butadiene-styrene processed parts was investigated. A relatively new class of experimental design called “definitive screening design” was adopted for this investigation. The effects of process variables on flexural creep stiffness behavior were monitored, and the best suited quadratic polynomial model with high coefficient of determination (R2) value was developed. This study highlights the value of response surface definitive screening design in optimizing properties for the products and materials, and it demonstrates its role and potential application in material processing and additive manufacturing.
JOM, Vol. 69, no. 3 (Mar 2017), pp. 498-505
Springer New York LLC
Copyright © 2016 The Minerals, Metals & Materials Society.