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Welding in Other Environments

Fabricating parts in challenging environments like in-space and underwater requires a thorough understanding of various factors. Key considerations include material properties (strength, weight, thermal and corrosion resistance), part design, process selection (Gas Tungsten Arc Welding, Laser Beam Welding, Electron Beam Welding), and inspection protocols to ensure quality. Adhering to relevant codes and standards is also critical. This guide explores the unique challenges and suitable welding methods tailored to extreme conditions, ensuring reliable and efficient results.

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Welding in Other Environments

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  1. Welding in Other Environments In-Space Under Water

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

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

  4. O H2O O CO2

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

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

  7. Gas Tungsten Arc Welding

  8. Electron Beam Welding (EBW) 0.1.1.2.1.T6.95.12

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

  10. Factors that Influence Process Selection • Material joining needs • Capabilities of available processes • Cost • Environment • Required welding speed • Skill level • Part Fit-up 0.1.1.2.7.T31.95.12

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