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**Zullock Holmes** · 03-14-2013, 09:31 PM

i saw a pinion bearing that did that.... race welded to the housing in spots, no lie.

**crosbike** · 03-14-2013, 09:33 PM

thats incredible. i wonder what they do to the metal after that process

**BRock89GW** · 03-14-2013, 10:03 PM

All the time in the small engine world pistons and cylinders overheating no lubrication. Crazy stuff

**Bigbike** · 03-14-2013, 10:35 PM

We make spin welders at work for spin welding plastic, which is basically friction. Im sure Lumberg will correct me.

**Bigbike** · 03-14-2013, 10:39 PM

https://www.youtube.com/watch?v=skoQ_X8vEJ8
Here is a video of my works machines.

Here is a machine we shipped out last week.
https://www.youtube.com/watch?v=37U7DcfldCs

**customcreationsllc** · 03-15-2013, 05:38 AM

That's how rotor blades are held on, on helicopters, at least for the black hawk.

**Lumbergh** · 03-17-2013, 10:35 AM

I did that once... Never again

**1cleantj** · 03-17-2013, 06:21 PM

pretty crazy how they do some of this stuff

**wannabejeep** · 03-17-2013, 06:51 PM

thermite welding is pretty nuts too.

[ame]http://www.youtube.com/watch?v=5uxsFglz2ig[/ame]

**BRock89GW** · 03-17-2013, 08:12 PM

That process takes all the live long day... Very Interesting video, next time I'm near tracks I'm gonna look around haha

**wannabejeep** · 03-18-2013, 10:42 AM

ya don't wanna get any of that on your hootus either.

friction welding