An alternative process to vacuum electron-beam welding has been evolved in which a high-intensity electron beam is produced from a low pressure glow-discharge in a gun having a cold cathode and which can be operated by a mechanical pump. This means that a relatively cheap and simple gun can now be made. One of the several applications considered for the glow-discharge process is that of welding long lengths of 15-mm diameter pipes grouped as closely together as 40 mm. Feasibility studies have shown that large pipes, such as those used in the oil and gas industry, can be welded. The use of the gun in situ for pre-heat and post-heat treatments has allowed surface preparation and final metallurgical properties to be controlled.

  • Corporate Authors:

    American Institute of Physics

    One Physics Ellipse
    College Park, MD  United States  20740-3843
  • Authors:
    • Holliday, J H
  • Publication Date: 1978-1

Media Info

  • Features: References;
  • Pagination: 5 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00178303
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Jul 19 1978 12:00AM