setzep

I want to weld 304L pipe to my cast iron turbine housing, can it be done? If so what method do I need to follow? I have access to a TIG and I have a MIG.



Thanks

Cam

defprun

Don't try this but...JB weld? EXPERTS?

mazdaspeed7

JBweld would commit suidice upon hearing the starter spin over, let alone wait for the manifold to get up to temp...

defprun

Well scrap that idea!

pengaru

i'm pretty sure it's possible, but going to crack in use.

banzaitoyota

You are going to have to:



a. Preheat the cast piece

b. Find the proper rod (Consult a knowledgibe supplier) and it is going to be expensive

c. It will have to be stick welded

d. Short tacks followed by peening.

e. then has to have a controlled cooldown



When it is all done it will probably crack



If you have never welded cast before, this is not the project to learn on

mazdaspeed7

Isnt gas welding better for cast iron?

FrestyleFC3S

just use Bubble Yum

banzaitoyota

Its the opinion of several other more experienced people than I:



There are several ways to weld cast iron, two of the most common are Cold welding and Hot welding. Both of these processes require the use of an electrode designed specifically for cast iron. Other rods have been used with moderate success, to be 100% successful, use the rods designed for cast iron only. They are available at all welding supply stores. Both welds will require proper preperation of the piece. Grind it so you can weld from both sides and achieve full penetration. When welding cast iron it is beneficial to keep the welds short and do not weave very much, if at all. This applies to both cold and hot welding. Hot welding requires a preheat between 500 deg. F and 900 deg. F and maintenance of the interpass temp. of at least 500 deg. F. It also requires controlled slow cooling. A welding blanket or burying it in sand will help if you do not have an oven. Cold welding requires you to keep the temp. below about 200 deg. F, and to use only short, small welds. You must let the piece cool after each weld and never let the temp. go above 200 deg. F. You will need to jump around with your short, little welds as much as possible. There are no shortcuts to welding cast iron. Follow the procedure or you will have only moderate or no success. It is important to have a good means of monitoring the temperature as you go. Temp. sticks or a thermometer of some sort is essential.

Respectfully,

Mike Sherman

Shermans Welding

setzep

Wow, this sounds like a real PITA. I better make a call to the local welding supply guy and ask him what he's done to join the two together. Thanks for the help guys (most of you).