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Cast Iron Engine Block Welding

Testimonials

Mike,

These pics come from a new aerospace test facility that they are constructing at the University of Notre Dame. The SSF-6 is working great.

 

aluminum welding and metal repair

I am attempting to make all of these fittings air tight as they are used for pressure measurements. We can¹t have any leaks. I had very little warpage of my base metal and I think this is really going to work out very well.

 

metal fabrication and repair with muggyweld

Thank you,

 

David Hipskind
Turbomachinery Technician
The University of Notre Dame
Institute for Flow Physics and Control (FLOWPAC)
The Hessert Laboratory for Aerospace Research

 

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The biggest problem encountered in cast iron welding is most welders use a high nickel rod. Because nickel is very hard, when the weld is performed, it leaves a hard spot in the cast, which is almost guaranteed to re-crack.

 

Attempts to combat this cracking have typically been to slowly heat and cool down the cast iron, and hope for the best.

 

Our cast iron welding rods eliminate the cracking, because our rods have 300% of the elongation of nickel rods. There is no need for preheating if the cast is under 3/4" thick, and no special cooling rituals are necessary.

 

 
This cast iron engine block from a CASE backhoe has a 1 1/2 inch hole caused by a thrown rod.




After light grinding, we laid pass after pass of our 77 electrode to fill the hole.




When applied properly, 77 is guaranteed not to re-crack.




A quick grinding is the finishing touch on this once impossible repair... for less than $20.

 


TIPS:

We believe you should always heat the cast iron if possible, no need to get it red hot but it will lay flatter when you first start your bead and preheating pulled the moisture out of the cast to prevent pinholes or porosity.

You can also use a steel patch with holes of this size, the 77 will weld the steel to the cast iron.

 

77 Electrode Products

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1/2 lb 77 Electrode 3/32"
1/2 lb 77 Electrode 3/32"

Save those expensive parts: cast iron exhaust manifolds, cast iron engine blocks, Caterpillar parts..

1/2 lb 77 Electrode 1/8"
1/2 lb 77 Electrode 1/8"

Save those expensive parts: cast iron exhaust manifolds, cast iron engine blocks, Caterpillar parts..

1/2 lb 77 Electrode 5/32"
1/2 lb 77 Electrode 5/32"

Save those expensive parts: cast iron exhaust manifolds, cast iron engine blocks, Caterpillar parts..

1 lb 77 Electrode 3/32"
1 lb 77 Electrode 3/32"

Save those expensive parts: cast iron exhaust manifolds, cast iron engine blocks, Caterpillar parts..

1 lb 77 Electrode 1/8"
1 lb 77 Electrode 1/8"

Save those expensive parts: cast iron exhaust manifolds, cast iron engine blocks, Caterpillar parts..

1 lb 77 Electrode 5/32"
1 lb 77 Electrode 5/32"

Save those expensive parts: cast iron exhaust manifolds, cast iron engine blocks, Caterpillar parts..

5 lb 77 Electrode 3/32"
5 lb 77 Electrode 3/32"

Save those expensive parts: cast iron exhaust manifolds, cast iron engine blocks, Caterpillar parts..