Vacuum Laser Beam Welding

In vacuum laser welding, the laser melts the metal in an evacuated chamber. This means you have no interfering gases or impurities in the weld zone, which is especially important for reactive metals like titanium or aluminum. You get a clean, pore-free seam with good mechanical properties. Make sure the chamber is really tight and the vacuum is right, otherwise you lose the advantage. You have to adjust the process parameters depending on the material and sheet thickness; that takes a feel for it.