EWI's patented compounds for gas tungsten arc welding help increase weld penetration by as much as three times. These unique metallic oxide compounds are available in a powder form. The powder is combined with a liquid carrier to form a slurry that is then applied to the top face of the joint to be welded.
The metallic oxides change the weld metal flow such that penetration is increased while the quality of the weld is improved. These compounds have been developed through extensive research carried out by EWI and the Navy Joining Center (NJC). Repeated testing has proven that the mechanical properties, weldability, and corrosion resistance are not affected in most of the cases.
Benefits
The benefits of EWI DeepTIG include:
Increases weld penetration by as much as 3 times
Improves consistency of welds
Improves quality of welds and reduces reject rates
Reduces distortion
The above left figure illustrates a gas tungsten arc weld. The above right image depicts a gas tungsten arc weld with EWI DeepTIG.
Compounds
Different compounds are needed for welding different base materials. Currently, EWI supplies:
SS-7 for stainless steels
NI-139 for nickel based alloys
CS-325 for carbon and low-alloy steels
More Information
For more information, please view:
