A PTFE liner is inexpensive and will work fine with the aluminum wire. If you want to do normal welding later, you’ll need to put the original liner back in. The other thing you’ll need is ...

we’ll admit that it’s true that aluminum brazing rods join broken parts impressively well. But yet again you won’t see this Hackaday writer riding a bike that wasn’t welded with the ...

Welding is vital for building reliable aerospace vehicles, providing the precision and strength needed for airplanes and helicopters to fly safely.