Tube cutter tool and method of use for coupon removal Metadata

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  • Main Title Tube cutter tool and method of use for coupon removal


  • Author: Nachbar, H.D.
    Creator Type: Personal
  • Author: Etten, M.P. Jr.
    Creator Type: Personal
  • Author: Kurowski, P.A.
    Creator Type: Personal


  • Sponsor: United States. Office of the Assistant Secretary for Nuclear Energy.
    Contributor Type: Organization
    Contributor Info: USDOE Assistant Secretary for Nuclear Energy, Washington, DC (United States)


  • Name: KAPL, Inc., Schenectady, NY (United States)
    Place of Publication: United States


  • Creation: 1995-12-31


  • English


  • Content Description: It is well known in the art that metal tubes used in heat transfer devices are susceptible to wear, erosion and other degradations which may create weaknesses or other potential failure points. One typical prior art method to determine the cause of damage to a tube involves making a circumferential cut on the tube wall and removing the entire section of the tube having a damaged portion thereon. This method is useful where a straight length portion of the tube has been affected. However, access to more constricted areas and removal of relatively large sections of tubing is limited where the cutting procedure is performed from the interior of the tube. A tube cutter tool is insertable into a tube for cutting a coupon from a damaged site on the exterior of the tube. Prior to using the tool, the damaged site is first located from the interior of the tube using a multi-coil pancake eddy current test probe. The damage site is then marked. A fiber optic probe is used to monitor the subsequent cutting procedure which is performed using a hole saw mounted on the tube cutter tool. Prior to completion of the cutting procedure, a drill in the center of the hole saw is drilled into the coupon to hold it in place.
  • Physical Description: 10 p.


  • Keyword: Sample Preparation
  • Keyword: Cutting Tools
  • Keyword: Damage
  • Keyword: Materials Testing
  • Keyword: Eddy Current Testing
  • Keyword: Heat Exchangers
  • STI Subject Categories: 42 Engineering Not Included In Other Categories


  • Other Information: PBD: 1995


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD


  • Patent Assignee: US Dept. of Energy, Washington, DC (United States)

Resource Type

  • Patent


  • Text


  • Other: DE97009536
  • Report No.: PATENTS-US--A8376150
  • Grant Number: AC12-76SN00052
  • Office of Scientific & Technical Information Report Number: 555462
  • Archival Resource Key: ark:/67531/metadc689645


  • Display Note: OSTI as DE97009536