The 3/4-in. -diameter laser beam consists of highly concentrated light energy -- enough to bore right through the metal if the cylinder liner was not kept moving continuously. Focused by mirrors, and sweeping across the inside surface of the rotating liner, the beam heats only a small area at a time to a precisely controlled temperature. The sweep of the beam overlaps for uniform treatment. When the light energy strikes the metal surface it's converted to heat energy. The surface of the liner is painted black to maximize this effect and to control reflected light that could contribute to overall heating of the liner. The overall temperature of the metal stays low (unlike other heat hardening methods) and no heat distortion of the metal occurs.

  • Availability:
  • Corporate Authors:

    Simmons-Boardman Publishing Corporation

    P.O. Box 530
    Bristol, CT  United States  06010
  • Publication Date: 1978-8

Media Info

  • Pagination: p. 52
  • Serial:
    • Marine Engineering/Log
    • Volume: 83
    • Issue Number: 9
    • Publisher: New York: Simmons-Boardman Publishing Corp.
    • ISSN: 0732-5460

Subject/Index Terms

Filing Info

  • Accession Number: 00193626
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Apr 25 1979 12:00AM