i cant recall a time where i've seen aluminum welded to stainless steel..... so i dont think it can be done, or am I wrong?

what tig rod would i need for that if i were to attempt to do that.

Rob

 

From what I've heard here at work, you can't weld aluminum to steel.

 

Sure you can!


With bolts.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicross &raquo;</TD></TR><TR><TD CLASS="quote">With bolts.</TD></TR></TABLE>

Well, then that wouldn't be welding then would it?

 

iv heard of it being done before.. something about doing it with water or underwater... thats about as much input as i can give... iv tried... didnt work out very well

 

not possible....

 

I dont think you can , cus the properties are diffrent between steel and aluminum, thats what i have ben told.

 

ya man i heard something at work about having to do it in water, just like you said, under water or have water running on it, or something like that

 

 

hahahaha JB weld is exactly what i was thinking, also i belive you might be able to braze them together but technically speaking thats not welding.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ExploitedRacing &raquo;</TD></TR><TR><TD CLASS="quote">hahahaha JB weld is exactly what i was thinking, also i belive you might be able to braze them together but technically speaking thats not welding.

</TD></TR></TABLE>

I don't even think that would work. I think aluminum melts lower than brass.

 

its not possible, if you try it, it'll be exactly like you're welding really cold, it'll just break off and won't fuse.

That's why there's no steel/aluminum alloys (where steel and aluminum are the main alloying metals). The two just don't like each other, like an oil and water mix.

 

this water trick, for welding? any one know any thing about that?

 

ferrous to non-ferrous metal.... i am gonna go with no. And brass melts at about 1400 about, something maybe a little higher, aluminum on the other hand is like 1000, wouldn't braze either, besides that fact that it won't bond it will burn through first.

Can't be done. Thats why they make composites and superstrong epoxies.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by snoochtodanooch &raquo;</TD></TR><TR><TD CLASS="quote">ferrous to non-ferrous metal.... i am gonna go with no. And brass melts at about 1400 about, something maybe a little higher, aluminum on the other hand is like 1000, wouldn't braze either, besides that fact that it won't bond it will burn through first.

Can't be done. Thats why they make composites and superstrong epoxies.</TD></TR></TABLE>

The melting point for aluminum is 660*C or 1220*F.

 

there is a company by me that makes special rods for brazing alum to other "stuff". I'm not exactly sure what exact metels they were talking about. When I first got my torch i called them and they sent me a catalog. I think they were using some sort of silver rods. I might be wrong since it was about 4 years ago but i could follow up if anyone cares enough.

 

They can't be welded ,but I have seen them silver soldered by padding the AL with silver.

 

I don't know what i did but apparently i grabbed the aluminum filler rod instead of the stainless rod lol....

the rod melted before i even got it in the puddle - kind of amusing.

 

The crazy things you learn in school...

http://www.inertiawelding.com/...s.htm

"Metal combinations not normally considered compatible can be joined by friction welding, such as aluminum to steel, copper to aluminum, titanium to copper, and nickel alloys to steel."

 

They can also be welded by a process known as explosion welding.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Canuk_SiR &raquo;</TD></TR><TR><TD CLASS="quote">its not possible, if you try it, it'll be exactly like you're welding really cold, it'll just break off and won't fuse.

That's why there's no steel/aluminum alloys (where steel and aluminum are the main alloying metals). The two just don't like each other, like an oil and water mix.</TD></TR></TABLE>

There are metal alloys that have small amounts of aluminium in them. EN19 is one that I know of since we use it, there must be many more, especially metals that respond well to nitriding, it's usually the aluminium that gives it the hard skin.

 

epoxy

just like the carbon fiber intake runners epoxy'd to the aluminum mounting flange

that or jb weld it and have fun.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ZoRG &raquo;</TD></TR><TR><TD CLASS="quote">They can also be welded by a process known as explosion welding.

There are metal alloys that have small amounts of aluminium in them. EN19 is one that I know of since we use it, there must be many more, especially metals that respond well to nitriding, it's usually the aluminium that gives it the hard skin.</TD></TR></TABLE>

hence why I said large amounts of either in an alloy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by backpurge &raquo;</TD></TR><TR><TD CLASS="quote">The crazy things you learn in school...

http://www.inertiawelding.com/...s.htm

"Metal combinations not normally considered compatible can be joined by friction welding, such as aluminum to steel, copper to aluminum, titanium to copper, and nickel alloys to steel."
</TD></TR></TABLE>

nice to know. interesting idea, i just figured they would machine both peices, freeze one with nitro and then press them together. Almost as good as a weld, but this seems much better. Still not very practical for most applications. and btw, if you really look, they can't marriage steel and aluminum in all facets yet. Look at the chart. They have had some success only with stainless steel and aluminum, and that is only marginal strength, but they supposedly can do steel alloys and aluminum. i would like to really see how this functions under testing. Another thing to consider with this process is that you are forced to use round stock, you can't butt two flat peices of metal.

Good info though

 

Ask engloid, I bet he would know

 

i have seen aluminun welded to steel, but its not a normal welding tech, i saw some **** a tool show(eastech) and they were fuseing dissimilar metals dont recall how though