Welding Tips and Tricks

Hey guys,

I'm considering welding my wastegate flange straight to my turbine housing. I've seen this done and anecdotally at least, successfully. The turbo is a garret and I found out the housings are made of Ni-resist cast iron.

Any tips for making this a lasting, successful weld? I could use a mild steel intermediate pipe to the stainless flange if that would help. I imagine pre-heating the housing would help? How far?

Thanks!

Something like this:

This paper seems to indicate nickel fill will do the trick.

https://www.nickelinstitute.org/~/media ... 4421_.ashx

http://www.amazon.com/Blue-Demon-ERNI55 ... el+tig+rod

There is always aluminum bronze though since it doesn't sound like something that will see high stresses.

-Sandow

But it will see high heat.

Piston rings as filler wire

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Sandow wrote:This paper seems to indicate nickel fill will do the trick.

https://www.nickelinstitute.org/~/media ... 4421_.ashx

http://www.amazon.com/Blue-Demon-ERNI55 ... el+tig+rod

There is always aluminum bronze though since it doesn't sound like something that will see high stresses.

-Sandow

Thanks, I'll give the nickel rod a shot!