LASER WELDING TECHNIQUES FOR FABRICATION OF NAVAL VESSELS

This work represents a preliminary investigation of the use of high power lasers for welding a variety of exotic materials at high speeds in several joint configurations. The results of the program indicate that high speed narrow, deep penetration welds similar to those made with a vacuum electron beam are achievable with a 10 KW laser. However, to generate porous-free welds it is imperative that the gas shielding be done properly. The problem of gas shielding is particularly aggravated at the very high speeds achievable in some of the thinner materials. However, shiny beads were obtained in titanium, even at speeds of 300 IPM, and over. The aluminum welds were far from satisfactory, but indications obtained outside the scope of this program with 1/4 inch thick 2219 aluminum indicate solid welds can be achieved. (Author)

• Corporate Authors:

  Avco Everett Research Laboratory

  2385 Reveve Beach Parkway
  Everett, MA  United States  02149

  Naval Ship Systems Command

  Washington, DC  United States 
• Authors:
  • Locke, E
• Publication Date: 1973-7

Media Info

• Pagination: 43 p.

Subject/Index Terms

• TRT Terms: Defects; Joints; Lasers; Welding; Welds
• Uncontrolled Terms: Weld defects; Welded joints
• Old TRIS Terms: Laser welding; Welding techniques
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00084432
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt.
• Contract Numbers: N00024-72-C-5584
• Files: TRIS
• Created Date: Jun 26 1975 12:00AM