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Title: Thermal and Structural Modeling of Laser Engineered Net Shape (LENS) Additive Manufacturing (AM).

Abstract

Abstract not provided.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1406951
Report Number(s):
SAND2016-10936D
648712
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the Born Qualified External Advisory Board Meeting at SNL held October 20-21, 2016.
Country of Publication:
United States
Language:
English

Citation Formats

Johnson, Kyle, Ford, Kurtis Ross, Subia, Samuel Ramirez, Rodgers, Theron, and Bishop, Joseph E. Thermal and Structural Modeling of Laser Engineered Net Shape (LENS) Additive Manufacturing (AM).. United States: N. p., 2016. Web.
Johnson, Kyle, Ford, Kurtis Ross, Subia, Samuel Ramirez, Rodgers, Theron, & Bishop, Joseph E. Thermal and Structural Modeling of Laser Engineered Net Shape (LENS) Additive Manufacturing (AM).. United States.
Johnson, Kyle, Ford, Kurtis Ross, Subia, Samuel Ramirez, Rodgers, Theron, and Bishop, Joseph E. 2016. "Thermal and Structural Modeling of Laser Engineered Net Shape (LENS) Additive Manufacturing (AM).". United States. doi:. https://www.osti.gov/servlets/purl/1406951.
@article{osti_1406951,
title = {Thermal and Structural Modeling of Laser Engineered Net Shape (LENS) Additive Manufacturing (AM).},
author = {Johnson, Kyle and Ford, Kurtis Ross and Subia, Samuel Ramirez and Rodgers, Theron and Bishop, Joseph E.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month =
}

Conference:
Other availability
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  • Sandia National Laboratories is presently developing an additive component processing technology called Laser Engineered Net Shaping, (LENS{trademark}). This process allows complex 3-dimensional solid metallic objects to be directly fabricated from a CAD solid model. Currently, this process functions similar to the Stereo Lithography process in which a faceted file is generated from the CAD solid model and then sliced into a sequence of layers. The sliced file is then input into another interpreter program which converts the sliced file into a series of tool path patterns required to build the entire layer. The component is fabricated by first generating anmore » outline of the key component features and then filled using a rastering technique. This file is then used to drive the laser system to produce the desired component one layer at a time. This process differs from present rapid prototyping (RP) processes in that a fully dense, metallic component can be produced using this process.« less
  • New methods of repairing mis-machined components are always of interest. In this study, an innovative method using Laser Engineered Net Shape{trademark} (LENS{reg_sign}) forming was used to repair intentionally mis-machined test articles. The components were repaired and subsequently hydrogen charged and burst tested. The LENS repair did not have an adverse effect on the solid state weld process that was used to repair the components. Hydrogen charged samples failed in a similar manner to the uncharged samples. Overall, the prospects for LENS repairing similar products are favorable and further work is encouraged.
  • Sandia National Laboratories (SNL) is engaged actively in research to improve the ability to accurately predict the response of engineered systems to thermal and structural abnormal environments. Abnormal environments that will be addressed in this paper include: fire, impact, and puncture by probes and fragments, as well as a combination of all of the above. Historically, SNL has demonstrated the survivability of engineered systems to abnormal environments using a balanced approach between numerical simulation and testing. It is necessary to determine the response of engineered systems in two cases: (1) to satisfy regulatory specifications, and (2) to enable quantification ofmore » a probabilistic risk assessment (PRA). In a regulatory case, numerical simulation of system response is generally used to guide the system design such that the system will respond satisfactorily to the specified regulatory abnormal environment. Testing is conducted at the regulatory abnormal environment to ensure compliance.« less
  • Abstract not provided.