I was doing a search on friction welding and found this video:

http://metals.about.com/gi/dynamic/offsite.htm?site=http://www.msm.cam.ac.uk/phase%252Dtrans/2002/papers/LINEAR.MPG

Not exactly the DIY type of thing but impressive. The contact force must be very large.

ok, learned my new thing for today. a lot more complicated than say induction welding, but it guess it can get into spots whether other techniques can't? thanks for the link

It can weld dissimilar materials that might be difficult or impossible by other techniques. That is the first time I have seen a vibratory friction welder; rotary ones are a well established process. I think Caterpillar use them for welding pistons to rods for hydraulic cylinders. I was impressed by the speed if that video was in real time.

There was a guy I worked with that was a PRO at this technique, but we used to call it entering the wrong tool length offset! :banana:

impressive
never knew that existed , who woulda thunk it

I've heard about Friction Welding when I worked in a High Performance Torque Converter shop. I hit the link but for some reason it's not loading. Maybe a Norton Issue. I really wanted to watch too :frown:

Here is another system of friction welding...Friction Stir Welding

http://www.msm.cam.ac.uk/phase-trans/2003/FSW/aaa.html

Here is another system of friction welding...Friction Stir Welding

http://www.msm.cam.ac.uk/phase-trans/2003/FSW/aaa.html

Thanks Kiwi that was educational. :)