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

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 conference › Paper › peer-review

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 language	English (US)
Pages	295-307
Number of pages	13
State	Published - 2020
Event	26th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2015 - Austin, United States Duration: Aug 10 2015 → Aug 12 2015

Conference

Conference	26th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2015
Country/Territory	United States
City	Austin
Period	8/10/15 → 8/12/15

All Science Journal Classification (ASJC) codes

Surfaces, Coatings and Films
Surfaces and Interfaces

Cite this

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title = "Optical, layerwise monitoring of powder bed fusion",

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.",

author = "Foster, \{B. K.\} and Reutzel, \{E. W.\} and Nassar, \{A. R.\} and Hall, \{B. T.\} and Brown, \{S. W.\} and Dickman, \{C. J.\}",

note = "Publisher Copyright: {\textcopyright} SFF 2015.All rights reserved.; 26th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2015 ; Conference date: 10-08-2015 Through 12-08-2015",

year = "2020",

language = "English (US)",

pages = "295--307",

}

TY - CONF

T1 - Optical, layerwise monitoring of powder bed fusion

AU - Foster, B. K.

AU - Reutzel, E. W.

AU - Nassar, A. R.

AU - Hall, B. T.

AU - Brown, S. W.

AU - Dickman, C. J.

PY - 2020

Y1 - 2020

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85084914073

UR - https://www.scopus.com/pages/publications/85084914073#tab=citedBy

M3 - Paper

AN - SCOPUS:85084914073

SP - 295

EP - 307

T2 - 26th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2015

Y2 - 10 August 2015 through 12 August 2015

ER -

Optical, layerwise monitoring of powder bed fusion

Abstract

Conference

All Science Journal Classification (ASJC) codes

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