Simulation of coarsening during laser engineered Net-Shaping

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Description

Laser Engineered Net-Shaping, otherwise known as LENS{trademark}, is an advanced manufacturing technique used to fabricate complex near net shaped components directly from engineered solid models without the use of dies or machining. The ultimate objective of this project is to develop predictive simulation capability which will allow the LENS{trademark} processors to determine fabrication conditions given the material, shape, and application of the final part. In this paper, the authors will present an incremental achievement to meeting the ultimate goal, a model capable of simulating the coarsening of microstructural features under the unique thermal history to which a LENS{trademark} part is ... continued below

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10 p.

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Tikare, V.; Griffith, M.; Schlienger, E. & Smugeresky, J. September 1, 1997.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Laser Engineered Net-Shaping, otherwise known as LENS{trademark}, is an advanced manufacturing technique used to fabricate complex near net shaped components directly from engineered solid models without the use of dies or machining. The ultimate objective of this project is to develop predictive simulation capability which will allow the LENS{trademark} processors to determine fabrication conditions given the material, shape, and application of the final part. In this paper, the authors will present an incremental achievement to meeting the ultimate goal, a model capable of simulating the coarsening of microstructural features under the unique thermal history to which a LENS{trademark} part is subjected during processing. The simulation results show how grains of very different shapes and sizes form within the same deposition line. They also show that relatively minor changes in the dynamic temperature profile results in microstructures with vastly different characteristics. The implications of this work for LENS{trademark} fabrication is that controlling the temperature profile is essential to tailoring the microstructure of a component to its application.

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10 p.

Notes

OSTI as DE97009386

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  • 8. solid freeform fabrication conference, Austin, TX (United States), 11-13 Aug 1997

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  • Other: DE97009386
  • Report No.: SAND--97-1943C
  • Report No.: CONF-970888--
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 539848
  • Archival Resource Key: ark:/67531/metadc694773

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • September 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

Description Last Updated

  • May 5, 2016, 8:42 p.m.

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Tikare, V.; Griffith, M.; Schlienger, E. & Smugeresky, J. Simulation of coarsening during laser engineered Net-Shaping, article, September 1, 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc694773/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.