Method and welding tongue for connecting steel parts by narrow-gap welding

摘要

To connect steel parts (2, 3) by narrow-gap welding, a welding tongue (37) is used which is mounted in an articulated manner with an axis (36) running in the longitudinal direction of the welding gap (4). According to the invention, this pivoting movement is predetermined by an electric servomotor (42) which is controlled as a function of an inductive measurement of the distance from the walls of the gap. <IMAGE>