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Developing A Process For Evaluating Powders For Binder Jetting 3D Printing

  • : Andrew Klein1
  • : 1ExOne
  • : PDF Download
  • : 2017

Abstract

Traditionally, metal additive manufacturing printers require custom-made, expensive powders in order to produce metal parts. Binder jetting 3D printers enable the use of powder metallurgy standard powders, which both increases the breadth of materials available for 3D printing and reduces cost. By using standard powder measurement techniques, including the Freeman FT4 Rheometer, a process was developed to predict a powder’s ability to produce quality parts with a Binder jetting 3D printer. Combining a powder’s flow characteristics with its shape, size and chemistry, users are able to predict a powder’s ability to be processed. This presentation will examine the characteristics which are key to success and give examples of how the process has been applied to reduce the number of iterations necessary to produce successful parts. Additionally, the presentation will analyze how the process has been used to rapidly increase the number of materials available to be printed. 

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