Welding

In laser welding we must distinguish between two main processes; thermal conductivity, welding and deep penetration welding. In thermal conductivity welding the materials to be joined melt as a result of absorption of the laser beam on the surface of the material, and the associated conduction of heat. The laser process turns out to be a process with high energy density.
Using a power laser beam two different ways can be used to produce a laser welding process;

For low power densities (<106 W/cm2), the laser energy is deposited on the surface of the piece and is transported to the inside by means of a mechanism of heat conduction (conduction welding process).

Higher power densities (>10 W/cm2) determine phenomena of ionization as of the piece surface of the metal as of the covering gas from which the formation of a needle cavity, full of ionized metallic and gas vapors (called keyhole), through which the energy deeply penetrates in the material (welding penetration process).

The solidified smelt joins the materials. Due to the precision and availability of using quick beam deflection systems, lasers also lend themselves very well to the structuring and cutting of surfaces.

Advantages of the Laser Welding

High aspect ratios (Penetration depth and melted width ratio), Very low thermal input energy, Job flexibility, Easy access to parts to join or weld, High mechanical characteristic of the laser weld

Materials: Carbon and Stainless steels, Aluminium and its alloys, nickel and its alloys, Titanium and its alloys, Copper and its alloys