Optical, layerwise monitoring of powder bed fusion

B. K. Foster, E. W. Reutzel, A. R. Nassar, B. T. Hall, S. W. Brown, C. J. Dickman

Research output: Contribution to conferencePaperpeer-review

43 Scopus citations

Abstract

In powder bed fusion additive manufacturing, pre-placed layers of powder are successively fused to form three-dimensional components. During part build-up, flaws in the material or part geometry can occur and lead to an unacceptable part quality. Common flaws include porosity, poor surface finish, and thermal deformation. Here, a layer-wise imaging technique is presented for process monitoring. The technique relies on collection and analyses of images taken under oblique illuminations of fused and pre-placed powder layers. Results of three-dimensional reconstruction of image data and identification of potential flaws are presented.

Original languageEnglish (US)
Pages295-307
Number of pages13
StatePublished - 2020
Event26th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2015 - Austin, United States
Duration: Aug 10 2015Aug 12 2015

Conference

Conference26th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2015
CountryUnited States
CityAustin
Period8/10/158/12/15

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Fingerprint Dive into the research topics of 'Optical, layerwise monitoring of powder bed fusion'. Together they form a unique fingerprint.

Cite this