Method of welding pipes by means of a laser and apparatus for carrying out the method

摘要

A rod-shaped probe with a lens system and a deflection mirror formed on the probe head is inserted into the pipe to be welded until the deflection mirror is located in the area of the intended welding point. Laser energy is then fed via a lightwave conductor to the lens system, is focused and is directed by the deflection mirror perpendicularly onto the inner wall of the pipe to be welded. In the process, the deflection mirror is continuously rotated through 360@ about the longitudinal axis of the probe.