Welding in Other Environments In-Space Under Water

Things to consider when fabricating parts Material Properties Design of Part Process Selection Inspection of Finished Part Codes and Standards for Production

Materials properties Strength Weight Elastic Modulus Fatigue Properties Impact Properties Thermal/Electrical Properties Corrosion Properties

O O H2OH2O CO 2

Things to consider when fabricating parts Material Properties Design of Part Process Selection Inspection of Finished Part Codes and Standards for Production

Things to consider when fabricating parts Material Properties Design of Part Process Selection Inspection of Finished Part Codes and Standards for Production

Gas Tungsten Arc Welding

Electron Beam Welding (EBW) T

Laser Beam Welding (LBW) l Single pass weld penetration up to 3/4” in steel l Materials need not be conductive l No filler metal required l Low heat input produces low distortion l Does not require a vacuum Keyhole welding Laser beam Plasma plume Molten material shielding gas nozzle (optional) workpiece motion Plasma keyhole High Energy Density Processes

Factors that Influence Process Selection l Material joining needs l Capabilities of available processes l Cost l Environment l Required welding speed l Skill level l Part Fit-up T