Multi-material processing by LENS{trademark}

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Description

During the past few years, solid freeform fabrication has evolved into direct fabrication of metallic components using computer aided design (CAD) solid models. Laser Engineered Net Shaping (LENS{trademark}) is one such technique being developed at Sandia to fabricate high strength, near net shape metallic components. In the past two years a variety of components have been fabricated using LENS{trademark} for applications ranging from prototype parts to injection mold tooling. To advance direct fabrication capabilities, a process must be able to accommodate a wide range of materials, including alloys and composites. This is important for tailoring certain physical properties critical to ... continued below

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8 p.

Creation Information

Griffith, M.L.; Harwell, L.D.; Romero, J.T.; Schlienger, E.; Atwood, C.L. & Smugeresky, J.E. October 1, 1997.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 50 times . More information about this article can be viewed below.

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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

During the past few years, solid freeform fabrication has evolved into direct fabrication of metallic components using computer aided design (CAD) solid models. Laser Engineered Net Shaping (LENS{trademark}) is one such technique being developed at Sandia to fabricate high strength, near net shape metallic components. In the past two years a variety of components have been fabricated using LENS{trademark} for applications ranging from prototype parts to injection mold tooling. To advance direct fabrication capabilities, a process must be able to accommodate a wide range of materials, including alloys and composites. This is important for tailoring certain physical properties critical to component performance. Examples include graded deposition for matching coefficient of thermal expansion between dissimilar materials, layered fabrication for novel mechanical properties, and new alloy design where elemental constituents and/or alloys are blended to create new materials. In this paper, the authors will discuss the development of precise powder feeding capabilities for the LENS{trademark} process to fabricate graded or layered material parts. They also present preliminary results from chemical and microstructural analysis.

Physical Description

8 p.

Notes

OSTI as DE98000188

Source

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

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  • Other: DE98000188
  • Report No.: SAND--97-1496C
  • Report No.: CONF-970888--
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 541908
  • Archival Resource Key: ark:/67531/metadc692435

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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.

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Creation Date

  • October 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

Description Last Updated

  • May 5, 2016, 8:41 p.m.

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Griffith, M.L.; Harwell, L.D.; Romero, J.T.; Schlienger, E.; Atwood, C.L. & Smugeresky, J.E. Multi-material processing by LENS{trademark}, article, October 1, 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc692435/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.