Joining Dissimilar Metals

Post by **david58** » Wed May 16, 2007 1:52 pm

What are the different types of metal that can be welded together?

Ol'fogasaurus · Post by **Ol'fogasaurus** » Wed May 16, 2007 3:20 pm

I saw a standard/proceedure for welding AL and steel together. I didn't think it could be done.

There are a lot of types of welding that most of us haven't heard of. How about explosive welding. I saw a proceedure for that too.

Post by **david58** » Wed May 16, 2007 3:26 pm

Ol'fogasaurus wrote:I saw a standard/proceedure for welding AL and steel together. I didn't think it could be done.

There are a lot of types of welding that most of us haven't heard of. How about explosive welding. I saw a proceedure for that too.

That is why I started this post. I also heard of welding steel and aluminium together from a certified welder.

sammyphsyco · Post by **sammyphsyco** » Thu May 17, 2007 3:48 am

My Grandmother was a welder during WWII at a plant that made fuel tanks for aircraft. They were aluminum tanks with steel AN fittings that she welded in. I wish I had been more intrested in welding at the time she was trying to teach me befor she passed on. Any way I have welded mild steel with stainless filler, with oxy / act torch.

Post by **david58** » Thu May 17, 2007 6:00 am

Welcome to the STF sammyphsyco.

Muffler Mike · Post by **Muffler Mike** » Thu May 17, 2007 6:37 am

mild carbon steel and stainless is common. I think its 308 rod one would use to mix the two. (did it before)

But Aluminum to steel, i would have to guess that they would be brazed together, and not actual mix of metals like welding does.

But thats only a guess on my part.

Post by **david58** » Thu May 17, 2007 6:39 am

http://www.muggyweld.com/

sammyphsyco · Post by **sammyphsyco** » Thu May 17, 2007 10:43 am

Granny was involved in welding her whole adult life after the war, she was into the artsy side of metal work. She said welding so I'm sure she meant it. I have also heard Kent White of TM technologies talk about it as well. Both of the above were refering to gas welding but I found a little about it using GMAW.

"Results

Bimetal joints of steel and aluminum can be produced with specially modified GMAW, using pure argon as the shielding gas. In experiments, the static strength of these joints was proven to be good. When the specimens failed, it was because of shear tension in the HAZ of the aluminum base metal.

Additionally, initial fatigue tests have shown that the strength of these joints readily bears comparison with that of welded all-aluminum joints.

Jürgen Bruckner is developing engineer and product manager with Fronius International GmbH, Buxbaumstraße 2 A-4600Wels, Austria, +43 (0)7242 241-478, fax +43 (0)7242 241394
"

http://www.thefabricator.com/Metallurgy ... cfm?ID=676

Muffler Mike · Post by **Muffler Mike** » Thu May 17, 2007 11:53 am

interesting.

69bug4me · Post by **69bug4me** » Mon May 28, 2007 2:07 pm

We weld alot of dissimiliar mateal at work steel to stainless,stainless to nickel alloys.

for steel to say 304 sometimes it's 309,steel to nickel alloys or nickel to stainless is mostly inco82.

It all depends on the customers specs and requirments and so on.