What type of welding is used in aerospace welding?

There are several types of welding that is used in the aerospace industry:  

    • Electron Beam Welding: Electron Beam welding is used in the aerospace industry when there are difficult or dissimilar metals involved, deeper penetration / more strength requirements or when outside contaminants like oxygen need to be kept away from the weld pool. 
    • Laser Beam Welding: LBW is used in many of the same applications as EBW but is cheaper due to not requiring a vacuum chamber. LBW is a much quicker process used for high volume welding applications when the drawing specifications allow for it.  
    • Tungsten Inert Gas Welding: TIG welding is used in structural applications or in difficult to access weld joints. TIG welding does produce a lot of heat, so it has to be precisely controlled to avoid adding stress to the part or damaging sensitive components.