Vacuum laser welding combines the precision of laser beam welding with the metallurgical benefits of a vacuum environment. This guide covers the fundamentals, advantages, and applications.
What Is Vacuum Laser Welding?
Vacuum laser welding is a joining process where a laser beam welds materials inside a chamber at pressures typically below 1 mbar. The absence of atmospheric gases eliminates porosity, spatter, and oxidation.
Key Advantages
- Zero porosity — no gas entrapment possible
- No spatter — stable melt pool dynamics under vacuum
- 2-3x deeper penetration — at equivalent laser power
- No shielding gas — reduced operating costs
- Reduced distortion — lower heat input at equivalent depth