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Thermal Imaging of Laser Powder Deposition for Process Diagnostics

[+] Author Affiliations
Joshua J. Hammell, Christopher J. Ludvigson, Michael A. Langerman, James W. Sears

South Dakota School of Mines and Technology, Rapid City, SD

Paper No. IMECE2011-63701, pp. 41-48; 8 pages
doi:10.1115/IMECE2011-63701
From:
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 3: Design and Manufacturing
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5489-1
  • Copyright © 2011 by ASME

abstract

Thermal imaging is an important tool for future developments in Laser Powder Deposition (LPD). Thermal imaging of the LPD process is typically used for the verification of mathematical models describing the process and/or dynamic melt pool control. The research discussed here shows how thermal imaging can be used to improve our understanding of the connection between deposition parameters, thermal gradients, and final part quality. Data gathered from melt pool and bulk-part thermal images were used to correlate deposition parameters to final part quality. The results presented here are for applications in internal barrel cladding and laser brazing.

Copyright © 2011 by ASME
Topics: Lasers , Imaging

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