Effect of process parameters and shot peening on mechanical behavior of ABS parts manufactured by fused filament fabrication (FFF)

Cody Kanger, Haitham Hadidi, Sneha Akula, Chandler Sandman, Jacob Quint, Mahdi Alsunni, Ryan Underwood, Cody Slafter, Jason Sonderup, Mason Spilinek, John Casias, P. Rao, M. P. Sealy

Research output: Contribution to conferencePaper

3 Scopus citations

Abstract

The goal of this research was to understand how shot peening affected the tensile strength and elongation of ABS polymer parts between three process parameters: layer height, infill angle, and outer shell quantity. Experiments were conducted using a Hyrel 30M fused filament fabrication (FFF) printer to produce ASTM 638D-IV samples. This is an important area of research because 3D printed polymers have typically been limited to prototyping applications due to low strengths and stiffness. Traditional means of improving a polymer's mechanical properties are changing the structural or chemical makeup. However, shot peening, a surface treatment commonly used to improve mechanical properties of metals, was hypothesized to have a statistically significant effect on the tensile strength and elongation of polymer parts. Results showed that shot peening had a significant effect on decreasing the tensile strength. Although not statistically significant, samples did show an increase in elongation after shot peening.

Original languageEnglish (US)
Pages444-458
Number of pages15
StatePublished - 2020
Event28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017 - Austin, United States
Duration: Aug 7 2017Aug 9 2017

Conference

Conference28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017
CountryUnited States
CityAustin
Period8/7/178/9/17

Keywords

  • ABS
  • Elongation
  • Fused filament fabrication
  • Shot peening
  • Strength

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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    Kanger, C., Hadidi, H., Akula, S., Sandman, C., Quint, J., Alsunni, M., Underwood, R., Slafter, C., Sonderup, J., Spilinek, M., Casias, J., Rao, P., & Sealy, M. P. (2020). Effect of process parameters and shot peening on mechanical behavior of ABS parts manufactured by fused filament fabrication (FFF). 444-458. Paper presented at 28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017, Austin, United States.