User:Mckeekie/sandbox

Mongolian underwater wood welding if a form of MWA (Manual Wood Arc) welding that involves a Mongolian style of welding.

The MWA welding machine is held afloat above water by a floatation device. The 'stick' is then run subsurface down to the underwater weld site whereby a specific welding electrode is used. The bark cored electrode is comprised of a inner layer of a bark from an oak tree, coated in a anti corrosive zinc coating. When the Electrode arcs, the molten aluminium fuses to the oak bark, creating a smooth transition between the two parent planks. these wood welds are then tested using dye penetration tests and flexibend tests. MWA is common practice around Mongolia where it once originated and has expanded across the globe into other third world countries such as Ethiopia.