Flexible Extendable Backing Shield for Welding Reactive Metals.
Patent, Filed 20 Apr 88, patented 12 Sep 89,
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
This patent discloses a flexible extendable backing shield for use with the welding of reactive metals such as titanium. The backing shield provides a means for selectively distributing the inert gas along the length of the shield and then diffusing the inert gas to the root side of the weld to prevent oxidation and embrittlement of the weld root. The backing shield is of modular configuration so that a plurality of the devices can be readily connected together to shield a variety of complex shapes. Patents PAT-CL-219-74. EDC
- Fabrication Metallurgy