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Stud welding
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Previously:
https://www.homemadetools.net/forum/...889#post229713
https://www.homemadetools.net/forum/...526#post228482
https://www.homemadetools.net/forum/...775#post223563
https://www.homemadetools.net/forum/...677#post216284
https://www.homemadetools.net/forum/...554#post212391
They're called Nelson studs in Canada. I'm not sure if the ones in the video above are Nelson brand, but they're very close. They work good.
https://www.youtube.com/watch?v=73Bwu5m_69A
Um, ok. Can we pretend that I don’t know what this is for, and someone might kindly explain? Tnx!
They're pretty versatile. You can get threaded ones. I think there are probably some other styles. In the video above they're installing Nelson Studs as a form of concrete embeds like rebar. Those little mushroom caps will hold the concrete tight against the plate and keep it from separating after pouring.Quote:
Originally Posted by bob47907
You can get "domestic" size versions of these for say 2-8 mm diameters but they are still quite expensive. For these smaller size studs they use a capacitor discharge method, no ferrule needed, often sold as car dent puller systems. You can search for "cdi stud welding". It's possible to weld a stud to a fairly thin plate with no marks on the opposite side. I could have used one for a recent project with stainless sheet! I believe they can do mild steel, stainless, aluminium and brass studs.