DEVELOPMENT AND APPLICATION OF A COMPUTER-CONTROLLED SHIP'S FRAME BENDER IN THE AUTOMATED SHIPYARD

A new type of ship's frame bender with self-adaptive computer numerical control (CNC) has been developed under a Navy contract and will be installed at National Steel and Shipbuilding Company (NASSCO), San Diego. The bender uses a unique "four-point" bending process and has many advantages over traditional bending methods, resulting in significant cost savings and increased production efficiency. The CNC bender is compatible with existing shipyard automation programs, using beam offset data generated by the shipyard's host computer to automatically produce formed frames to an accuracy of 1/4 in. (6.35 mm) at a minimum production rate of four 40-ft (12 m) frames per hour. The bender can also be used to straighten frames which are distorted. Sections up to 25 in. (63.5 cm) deep with a web thickness of as little as 1/2 in. (12.7 mm) can be bent on the machine, which is being installed in the yard's hull prefabrication area for maximum material handling efficiency.

  • Supplemental Notes:
    • Paper presented at SNAME Annual Meeting, November 16-18, 1978.
  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  USA  07306-2907
  • Authors:
    • Acton, J B
    • Cali, F
    • Mackey, T P
    • Mergler, H W
  • Publication Date: 1978-9

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00184815
  • Record Type: Publication
  • Source Agency: Society of Naval Architects and Marine Engineers
  • Report/Paper Numbers: Paper No. 12
  • Files: TRIS
  • Created Date: Jan 13 1979 12:00AM