Effect of Process Parameters and Shot Peening on the Tensile Strength and Deflection of Polymer Parts Made using Mask Image Projection Stereolithography (MIP-SLA)

G. Madireddy, M. Montazeri, E. Curtis, J. Berger, N. Underwood, Y. Khayari, B. Marth, B. Smith, S. Christy, K. Krueger, M. P. Sealy, P. Rao

Research output: Contribution to conferencePaper

1 Scopus citations

Abstract

Mask Image Projection Stereolithography (MIP-SLA) is an additive manufacturing technique in which a liquid photopolymer resin is hardened from exposure to ultraviolet (UV) light. Shot peening is a surface treatment to improve the mechanical properties of components. The goal of this work was to quantify the effect of SLA print process parameters, namely layer height and UV exposure, and shot peening on the longitudinal tensile strength of ASTM D638 Type 5 test artifacts. Test parts were created using a central composite experimental plan on a B9 Creator desktop SLA machine. Deflection of the pseudo-Almen strips after shot peening was measured using a digital camera to identify desired peening condition. Post-shot peening tensile strength was measured for the ASTM D638 Type 5 parts. Shot peening generally decreased the strength of MIP-SLA parts.

Original languageEnglish (US)
Pages1761-1770
Number of pages10
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

  • Deflection
  • Polymer
  • Shot peening
  • Stereolithography
  • Strength

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Fingerprint Dive into the research topics of 'Effect of Process Parameters and Shot Peening on the Tensile Strength and Deflection of Polymer Parts Made using Mask Image Projection Stereolithography (MIP-SLA)'. Together they form a unique fingerprint.

  • Cite this

    Madireddy, G., Montazeri, M., Curtis, E., Berger, J., Underwood, N., Khayari, Y., Marth, B., Smith, B., Christy, S., Krueger, K., Sealy, M. P., & Rao, P. (2020). Effect of Process Parameters and Shot Peening on the Tensile Strength and Deflection of Polymer Parts Made using Mask Image Projection Stereolithography (MIP-SLA). 1761-1770. Paper presented at 28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017, Austin, United States.