Tig Welding
Tig Welding
Welding Stainless Steel by Vito Garza
There are such a lot of different grades that things are made of and it is not necessarily clear which one you are about to weld.
There are ways of telling, like spark testing but I have yet to see anyone that could tell one type of iron casting from another by spark testing.
Come visit us right here for more Welder and Welding Info and get two Welding Ebooks Tig Welding Stainless Steel.
Think about this for a minute…Tool steels contain around one % carbon and are thought to be difficult to weld because of excessive toughening and even cracking problems.
It turns into graphite and that actually serves a purpose as a lubricator on cylinder walls of a combustion engine.
But for welding, all that carbon and graphite is hideous. Carbon in those percentages cause toughening of the weld metal and surrounding heat area affected. To make things worse, cast iron is very brittle.
But tests have shown that for tig welding cast iron, aluminum Bronze is a very good choice.
Lets look at why…
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2. The solidifying weld metal does not have high shrinkage stresses to cause the metal to break next to welded areas.
3. Aluminum bronze tig welding rods are virtually as powerful as steel
4. When welded on A/C, these Al bronze tig welding rods flow and wet easily and achieve a minimum amount of dilution from the cast-iron base metal. That’s usually a good thing.
5. Aluminum bronze tig welding rods are much cheaper than nickel rods.
A good tip for using this rod on welding iron castings is to set the gtaw machine on A/C just like you would weld aluminum. That may let the bronze filler metal flow without mixing too a lot of the iron and carbon into the weld.
Come visit us right here for more Welder and Welding Info and get two Welding Ebooks Tig Welding Stainless Steel.
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About the Author
Come visit us right here for more Welder and Welding Info and get two Welding Ebooks Tig Welding Stainless Steel.
Tig Welding Steel
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