Laser in Vacuum Models

Laser in Vacuum Welding Machines

Laser welding in a vacuum is a relatively new technique that has the advantage of two to three times the depth of weld compared with conventional laser welding with shielding gas. It also has the benefits of reduced oxidation and extremely high welding quality.

Laser welding in air leads to a build-up of plasma, which blocks the laser from penetrating the metal, so the beam must traverse the weld joint quickly.

Laser welding in a vacuum can double the penetration, reduce the amount of weld spatter by removing the plasma, and reduce the temperature at which the metal boils allowing deeper beam penetration.

The vacuum chamber provides a ready-made photon containment environment, thereby removing the need for a protected working environment.

CVE’s method of keeping the optical path clean is the key to its success.

CVE

Laser welding in a vacuum is a relatively new technique that has the advantage of two to three times the depth of weld compared with conventional laser welding with shielding gas. It also has the benefits of reduced oxidation and extremely high welding quality.

Laser welding in air leads to a build-up of plasma, which blocks the laser from penetrating the metal, so the beam must traverse the weld joint quickly.

Laser welding in a vacuum can double the penetration, reduce the amount of weld spatter by removing the plasma, and reduce the temperature at which the metal boils allowing deeper beam penetration.

The vacuum chamber provides a ready-made photon containment environment, thereby removing the need for a protected working environment.

CVE’s method of keeping the optical path clean is the key to its success.

CVE

Laser welding in a vacuum is a relatively new technique that has the advantage of two to three times the depth of weld compared with conventional laser welding with shielding gas. It also has the benefits of reduced oxidation and extremely high welding quality.

Laser welding in air leads to a build-up of plasma, which blocks the laser from penetrating the metal, so the beam must traverse the weld joint quickly.

Laser welding in a vacuum can double the penetration, reduce the amount of weld spatter by removing the plasma, and reduce the temperature at which the metal boils allowing deeper beam penetration.

The vacuum chamber provides a ready-made photon containment environment, thereby removing the need for a protected working environment.

CVE’s method of keeping the optical path clean is the key to its success.

CVE

Benefits of Laser Welding in Vacuum

  • An increase of over double the welding depth than in air
  • Parallel-sided seams with reduced nail head
  • Increase process stability due to significantly reduced and stable plasma plume
  • Reduction of workpiece contamination by spatter and vaporisation
  • Higher-quality, pore-free weld seams
  • Low operating costs due to efficient solid-state laser
  • Welding process without inert gas

Image shows S355 steel laser welded in vacuum >20 mm depth using a 6kW laser.

CVE

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