Roller Burnishing - A Cold Working Tool to Reduce Weld Induced Residual Stress

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Description

The possibility of stress corrosion cracking (SCC) in regions of tensile residual stress introduced by weld deposited material has been a concern where environmental effects can reduce component life. Roller burnishing, a form of mechanical cold-working, has been considered as a means of providing for residual stress state improvements. This paper provides a computational evaluation of the roller burnishing process to address the permanent deformation needed to introduce a desirable residual stress state. The analysis uses a series of incrementally applied pressure loadings and finite element methodology to simulate the behavior of a roller burnishing tool. Various magnitudes of applied ... continued below

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1523 Kilobytes pages

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Martin, John February 19, 2002.

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This report 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. More information about this report can be viewed below.

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  • Lockheed Martin
    Publisher Info: Lockheed Martin Corporation, Schenectady, NY 12301 (United States)
    Place of Publication: Schenectady, New York

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Description

The possibility of stress corrosion cracking (SCC) in regions of tensile residual stress introduced by weld deposited material has been a concern where environmental effects can reduce component life. Roller burnishing, a form of mechanical cold-working, has been considered as a means of providing for residual stress state improvements. This paper provides a computational evaluation of the roller burnishing process to address the permanent deformation needed to introduce a desirable residual stress state. The analysis uses a series of incrementally applied pressure loadings and finite element methodology to simulate the behavior of a roller burnishing tool. Various magnitudes of applied pressure loadings coupled with different size plates and boundary conditions are examined to assess the degree and depth of the residual compressive stress state after cold working. Both kinematic and isotropic hardening laws are evaluated.

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1523 Kilobytes pages

Notes

OSTI as DE00821697

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  • Other Information: PBD: 19 Feb 2002

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  • Report No.: LM-02K009
  • Grant Number: AC12-00SN39357
  • DOI: 10.2172/821697 | External Link
  • Office of Scientific & Technical Information Report Number: 821697
  • Archival Resource Key: ark:/67531/metadc780954

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  • February 19, 2002

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • April 28, 2016, 8:53 p.m.

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Martin, John. Roller Burnishing - A Cold Working Tool to Reduce Weld Induced Residual Stress, report, February 19, 2002; Schenectady, New York. (digital.library.unt.edu/ark:/67531/metadc780954/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.