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Expedited Optimization of AM Materials Using Miniaturized Testing

  • Jonathan TorresEmail author
  • Ali P. Gordon
Conference paper
  • 590 Downloads
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

The small punch test (SPT) has been developed for the purpose of characterizing materials which are scarce or costly by using reduced-size test samples. While limitations exist for utilizing the SPT for material characterization, the test economizes resources in optimizing processing for additive manufacturing (AM). Several AM materials were tested under varying conditions and stages of processing. Parameters such as build orientation, post-processing variations, and testing conditions are shown to cause notable differences in sample responses. Conditions varied in samples include variations in both sample preparation and testing conditions, including both monotonic and cyclic loading. Comparisons are made between tests to find the effects of each varied condition, and trends are correlated to show the capabilities of the SPT. Fractography results are shown exploring fracture patterns which vary depending on test conditions such as load and control type and are shown to be dependent on manufacturing orientation and processing conditions.

Keywords

Miniaturized testing Material characterization 3D printing Additive manufacturing Fatigue Fracture 

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Copyright information

© The Minerals, Metals & Materials Society 2020

Authors and Affiliations

  1. 1.Bucknell UniversityLewisburgUSA
  2. 2.University of Central FloridaOrlandoUSA

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