is it possible to weld ti to stainless? complicating it further, can it be done with a mig? it doesn't need to be pretty, just functional. this is for a quick release exhaust setup. thanks.

 

Im going to say No either way. Two completely different metals.

 

i have mig'd my stainless exhausts, i have not had the hcnace to try a bead on the ti tubing yet. perhaps i can lay a bead, but it won't last?

 

stainless and mild still have iron component, stainless just has chromium that makes a layer that inhibits rust. If you weld it with mild steel wire, it turns to mild steel at the weld.
If you weld with stainless wire and CO2 you end up having a really crappy looking bead, becuase stainless takes carbon from the gas.

As for titanium and stainless, definately it wont work, besides you need a room filled with argon when you weld titanium or a closet where you put the titanium pieces and weld them in the closet.

 

http://www.welding-advisers.com/PRAC...etterNo33.html

Theres some reading. Quick answer is no. Longer answer is yes, but you will not have the ability or resources to do it.

 

not so.

if you have a trailing shield setup, it isn't necassary to have an argon cabinet. how do you think larger ti pipes are welded on site?

 

yea Ti welds at 800 degrees and SS is around 1150

the two metals are completely different even tho they have excellent corrosion resistance characteristics





but there are ways of joining the two...

 

Do you have a new exciting car? I thought the civic was for sale

 

i have repaird a titanium exhaust without using a booth and it works fine...and welding the two together is possible...

its like welding thick stainless to thin......obviously the thin melts sooner. as for welding the ti to stainless, the ti will melt sooner.

 

All you guys are WAY over thinking this one! you can bet the farm my good buddy JB can stick the two pieces together, if by some chance he can't than I know my other buddy Duct can get it done ;-)

 

there are simpler ways to join the 2. why don't you just use a v-band?

 

because there are no Ti vbands....

 

this is the exact route i was going. i guess i will have to find a different front section, but after i butcher the exhaust trying....

 

http://www.highenergymetals.com/

 

you could also just slip-fit the exhaust side tube and clamp it.

 

You beat me to it. The only commerical methods I know off for bonding titanium to steel would be an inertia method.

 

slip fit would seem like it would work

 

it would seem that way, eh? nah. too much work to repeatedly do this. and the ti fatigues, that is why i have the exhaust, because it is cracked in a few spots. no big deal, i will just use a SS front section.

 

I use 4951 ti wire and weld it onto stainless bends if one of my mandrel ***** are broken and stuck in there. Tap it with a hammer and it cracks it open!

 

Friction weld or explosive weld would probably get the job done, but you can't so either so your best bet is some form of mechanical connection.

 

ok...