I'm not a builder but I doubt that will work to be used in something else besides maybe adding bosses to an AL frame, as somebody said... stress areas issues, well the other issue is that once u weld with AL u have to put the frame back in a furnace to get it heat threaded again so the whole frame gets its resistance back.
If you use this to weld the frame could crack somewhere else but in the weld. Maybe somebody made a frame using this thing? Wish there was something similar for steel.