Staff Only


ORNL's experience and capabilities in advancing the science and technology of materials joining and their applications to various technologies are unparalleled in the U.S. and are nationally and internationally recognized.

  • Standard welding processes, including gas tungsten arc (GTA), submerged arc (SA), gas metal arc
  • (GMA), and electroslag (ES)
  • Pulsed and high power continuous wave CO2 laser systems
  • High power electron beam welding machine
  • Internal bore tube-to-tube sheet welding system
  • Narrow gap SA welding system
  • Gleeble thermomechanical simulator
  • Sigmajig and varestraint weldability testing capability
  • Variable polarity plasma arc system
  • Weld vision system for weld pool dynamic studies
  • Interrupted and controlled solidification high-temperature furnace
  • Sessile drop apparatus for brazing alloy wetting studies
  • Ceramic-to-ceramic and ceramic-to-metal brazing capabilities
  • State-of-the-art friction stir welding and processing equipment
  • Ultrasonic welding



 Oak Ridge National Laboratory