Hackaday reader [David] was looking for a cheap and easy way to spot weld copper tabs together. As he notes in his writeup, the properties of copper which are most enticing, such as high thermal ...

[Julian] needed to weld a bit of nickel to some steel and decided to use a spot welding technique. Of course he didn’t have a spot welder sitting around. Since these are fairly simple machines so ...

For sheet metals and plates, resistance spot welding remains a widespread choice for joining similar metals. It is inexpensive and the resulting joints are strong and reliable. That’s why resistance ...