After reading some detailed information on Helium gas on Aluminium welding , We decided to list down some of the advantages of using Helium gas for Aluminum welding .
First of all , Helium is not just for balloons , there are different types of helium which all can be differentiated via its composition .
Some of the additional information / points can be obtain here :
http://www.thefabricator.com/article/consumables/whats-up-with-helium-for-welding-applicationsr_
Some of the welders that I've met did some work on Aluminium but mostly on Stainless Steels , as Aluminium requires experience and it's more challenging as well. Thus , as we mentioned earlier , by using Helium as a shielding gas , it gives a good thermal conductivity . This is because it generates higher heat to improve the wetting of the weld bead .
Lastly , cost is also another factor you need to think of as Helium is generally more expensive as compared to Argon. Thus , some may prefer to mix Argon with Helium when welding .
First of all , Helium is not just for balloons , there are different types of helium which all can be differentiated via its composition .
Some of the additional information / points can be obtain here :
http://www.thefabricator.com/article/consumables/whats-up-with-helium-for-welding-applicationsr_
Some of the welders that I've met did some work on Aluminium but mostly on Stainless Steels , as Aluminium requires experience and it's more challenging as well. Thus , as we mentioned earlier , by using Helium as a shielding gas , it gives a good thermal conductivity . This is because it generates higher heat to improve the wetting of the weld bead .
Lastly , cost is also another factor you need to think of as Helium is generally more expensive as compared to Argon. Thus , some may prefer to mix Argon with Helium when welding .