Key hole

The electric arc is constricted by a copper nozzle, which causes a higher power density. The concentrated electric arc can be achieved in conjunction with the controllable able gas, higher welding speeds and a deeper penetration, which saves time and money. The tight bundling of the electric arc and the welding speed causes only a narrow heat-effected zone to form, which has a lower thermal distortion in the component result.

With the key hole method, it is possible to weld materials with a thickness of up to 12mm in one layer without edge preparation.
Weldable materials include: Al, VA, St, Ti, Ni, Zr, …