Selection and installation of high resolution imaging to monitor the PBFam process, and synchronization to post-build 3D computed tomography

Jacob P. Morgan, John P. Morgan, Donald J. Natale, Robert W.M. Smith, Wesley F. Mitchell, Alexander J. Dunbar, Edward W. Reutzel

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

Industrial applications of PBFAM continue to expand, and there is a growing interest in the use of sensors to monitor the build process. Sensor data collected during the build process provides insight into process physics and may also lead to a reduction in overall fabrication time and cost by offering an alternative to extensive post-build nondestructive inspection for quality control. Ultimately, sensor data may serve as feedback for real-time control systems that automatically repair flaws before they are buried by subsequent layers. In this work, high resolution images are explored as a means of monitoring the PBFAM build process inside a 3D Systems ProX320. Key design considerations for camera selection and integration are discussed. Methods and algorithms are developed to calibrate and map layer-wise imagery to laser scan vectors. Images are stacked and exported to standardized 3D data formats to enable easy inspection and comparison to post-build 3D computed tomography (CT) volumes.

Original languageEnglish (US)
Pages1382-1399
Number of pages18
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

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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