The CO2 slab laser is equipped with a 2.5 kW source which allows it to have a significant gaussian-shaped beam (k³0.8).
This better power distribution guarantees smallest spots, less thermal distorsions, more accurate welding tracks and gives the chance to manage lowest-sized pieces than high-powered CO2 laser.
It is specialised to handle steel and aluminium alloys.
The laser head is assembled on a 5-axis robot and makes use of the same working table of the previous 6 kW laser.
The 4.4 kW diode pumped Nd:YAG laser couples good beam quality to the possibility to delivery the beam through the optical fibers. In fact, their employ gives this kind of laser more flexibility than CO2 ones, thus permitting it to follow three-dimension routes and manage complex-shaped pieces, too.
In terms of performance, it allows to weld steel and aluminium alloys thicknesses up to, respectively, 6.5 and 5 mm,
guaranteeing a productivity of about 40 m/min.
It is installed on a 6-axis antropomorphous robot which allows to program and actuate complex 3-D routes.
The metallic alloy joining through Friction Stirr Welding (FSW), differently from the laser technology, takes advantage of the heat produced by the high rotation speed of an element pushed against the shoulders to be joined. This approach prevents the materials from melting, being the joint obtained through the material plasticization and smearing.