Sorry if this is not the right thread to post this. I couldn't a find a kweld forum, or a general spot welding forum...
I have kweld (with super caps) and it's been great so far for batteries.
Now, I need to "stick" wires to some hardened steel rods. These are short rods, 3mm diameter, 8mm long. I need to attach the wire to the end, at 90 degrees to the rod. The wires are used detect when a mating part is in contact, so minimal current. (kinematic coupling)
So a few questions -
Will spot welding copper wire to steel work? Is copper too low resistance, or should I try a different material?
Can I weld a thin wire to a larger rod? Will the heat dissipate through the large rod without welding?
Should I be placing both probes next to each other when trying to make the weld, or can I place one probe on each end of the rod. The standard probes are quite large to place both on the end of a 3mm rod. I may need to make smaller ones.
I can't say much about that, other than that welding copper wires to steel rods is possible in general. A customer of mine had sent me this picture, quite a while ago:
https://www.keenlab.de/wp-content/uploads/2017/12/kWeld-example-strand.jpg
It should be possible, but you would need a tungston electrode at least for the copper wire.
-branadic-
years ago at the welding institute to sit exams there was a big stainless steel cylinder about 1m dia and 1.5m tall it had a wall thickness of about 4 inches,in its top was a copper plug welded into it,it was electron beam welded,it was a part of a flask for vitrified nuke waste.