This is difficult to say. The obvious part of the weld looks more crude than the rest. Notice how smooth and apparently one-piece the joining of the blade and sosoran as it approaches the handle.
I am not exactly sure what you mean by "scarf welding." If you are suggesting a butt weld, or rabbited end, of the VOC blade, then welding into a notch, I don't think this applies.
It almost looks like it was made this way from the beginning. Or the sosoran could have been split and the blade inserted?
I hope to be able to connect with one of my metallurgical friends and show it to him. Maybe then I can get some better answers. Or perhaps one of the other forumites who saw this could better answer.
|