Challenges
Vacuum Environment
The vacuum of space poses a significant challenge for welding, as it affects the behavior of molten metal and can cause issues with contamination and oxidation. Special techniques and equipment are required to mitigate these effects.
Microgravity
In microgravity, the behavior of molten metal is drastically different from that on Earth. Welders must contend with the lack of buoyancy and convection, which can lead to uneven heat distribution and weld pool instability.
Temperature Extremes
Space is characterized by extreme temperatures, ranging from intense heat when exposed to the Sun to freezing cold in the shadow of Earth. These temperature fluctuations can affect the properties of materials and the quality of the weld.