Brazing of aluminium to inconel
Brazing of aluminium to inconel
(OP)
Hi All,
Has anyone any experience of brazing aluminium alloy to inconel?
Has anyone any experience of brazing aluminium alloy to inconel?
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Brazing of aluminium to inconel
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RE: Brazing of aluminium to inconel
http://www.technicalmaterials.umicore.com/en/bt/
http://www.brazingbook.com/
http://www.brazingandsoldering.org/index.html
Think you will find it on one of these....some of the very best.
RE: Brazing of aluminium to inconel
We have quite a lot of experience with torch/induction brazing of aluminium alloys and inconel alloys but have never brazed the two together.
We have a customer who is designing a motor-sport engine that requires an assembly to be constructed from a mixture of aluminium and inconel alloys brazed together.
Due to the differing thermal conduction and expansion properties of the two alloys we would expect difficulties achieving a servicable joint using traditional brazing techniques.
Has anyone any suggestions regarding filler alloys and heating methods?
The aluminium will probably be one of the 6000 series alloys.
RE: Brazing of aluminium to inconel
If we had drawings and material specs we would look at the project for you.
If you want to do it yourself try Lucas Milhaupt tech support.
The kind of braze alloy and the thickness of the braze joint can both help greatly compensation for the differences in contraction.
Tom
Thomas J. Walz
Carbide Processors, Inc.
www.carbideprocessors.com
RE: Brazing of aluminium to inconel
My hunch is that one of the two metals will need to be pre-treated since you probably will not be able to find a flux that is compatible with both.
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RE: Brazing of aluminium to inconel
RE: Brazing of aluminium to inconel
However proper selection of carbide and braze alloy combined with proper braze techniques makes joints that are successful. Some may be in tension and I rather suspect that most are.
This is an example that joints in tension can be successful if that is the only way the joint can be designed. However I will definitely second EdStainless that it is not the best way to do it if there is a choice.
If you don’t have it then get The Brazing Book from Handy and Harman. It is very good on basic joint design.
tom.
Thomas J. Walz
Carbide Processors, Inc.
www.carbideprocessors.com