Helium Gas For Aluminum Welding. In most applications this will create a pleasantly smooth weld and keep the amount of spatter to a minimum. Fabricators also use helium for welding because of its inert properties and high heat transfer which makes it the perfect shielding gas an inert or semi-inert gas that protects the weld from oxygen and water for welding materials with high heat conductivity like copper magnesium alloys and aluminum.
But its the emergence of two other sectorsthe medical and electronic industrieswhich have really changed how helium is being consumed. Stainless Steel MIG weld done with C2 gas. Argon with 90 Helium This mixture is used for welding copper over 12 in.
But its the emergence of two other sectorsthe medical and electronic industrieswhich have really changed how helium is being consumed.
Molten aluminum will absorb as much hydrogen as it possibly can. Helium blends can also fight the issue of porosity always a concern in aluminum welding. The higher the pressure the greater the resistance in the gas. It is also used for short circuiting transfer with high nickel filler metals.