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Techniques for welding cast iron?
Posted: Wed Dec 16, 2015 1:03 pm
by Nathannamaya
hey guys, I've got a customer who need a cast iron part welded, and I want to know if you guys have any suggestions on how to weld it? I know that your gonna need a pre heat and let it cool very slowly, but that's about it. I've never really done any work with cast iron, so any ideas are welcome. Thanks guys
Re: Techniques for welding cast iron?
Posted: Wed Dec 16, 2015 4:38 pm
by jroark
I've welded cast with stainless rods and while it cools you can peen it to reduce stress on the cast.
Re: Techniques for welding cast iron?
Posted: Wed Dec 16, 2015 6:34 pm
by Poland308
Are you going to stick weld it or tig it?
Re: Techniques for welding cast iron?
Posted: Thu Dec 17, 2015 12:29 am
by Nathannamaya
jroark wrote:I've welded cast with stainless rods and while it cools you can peen it to reduce stress on the cast.
And what kind of stainless did you use? 309? 312?
Re: Techniques for welding cast iron?
Posted: Thu Dec 17, 2015 12:30 am
by Nathannamaya
Poland308 wrote:Are you going to stick weld it or tig it?
Most likely stick
Re: Techniques for welding cast iron?
Posted: Thu Dec 17, 2015 2:37 am
by Arno
May want to look at various electrode options, also depending on wether or not the part may need some (re)machining afterwards and also perhaps see if you can find out what kind of cast-iron it is.
Eg.:
http://www.lincolnelectric.com/en-us/su ... etail.aspx
http://www.weldguru.com/CastIron.html
Bye, Arno.