Structurally intelligent 3D layer generation for active-Z printing

Jivtesh B. Khurana, Timothy W. Simpson, Mary Frecker

Research output: Contribution to conferencePaper

Abstract

Active-Z Printing offers the ability to deposit material along non-planar layers to control the mechanical behavior of parts produced by material extrusion additive manufacturing. These non-planar layers can be exploited to incorporate a part's loading conditions into the slicing process by aligning deposited layers with predicted localized stress tensors. In this work, we demonstrate that superior structural performance can be achieved by taking advantage of layer shapes derived from principal stress trajectories. A slicing method incorporating stress field data is developed to generate 3D layers from principal stress trajectories. As a demonstration, a 3-point bend specimen is manufactured with 3D layers derived from principal stress trajectories developed in a deformed specimen. Mechanical tests are conducted and 3-point bend specimens are shown to have superior mechanical response. This novel approach introduces new capabilities to Additive Manufacturing for structurally intelligent fabrication.

Original languageEnglish (US)
Pages2413-2426
Number of pages14
StatePublished - 2020
Event29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018 - Austin, United States
Duration: Aug 13 2018Aug 15 2018

Conference

Conference29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018
CountryUnited States
CityAustin
Period8/13/188/15/18

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Fingerprint Dive into the research topics of 'Structurally intelligent 3D layer generation for active-Z printing'. Together they form a unique fingerprint.

  • Cite this

    Khurana, J. B., Simpson, T. W., & Frecker, M. (2020). Structurally intelligent 3D layer generation for active-Z printing. 2413-2426. Paper presented at 29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018, Austin, United States.