A process for the reciprocal guiding of a workpiece using a device for moving a tool in association with the workpiece and a manipulator for moving the workpiece in a corresponding direction for effecting a rolling welding seam, comprising driving the workpiece by movement of the tool in contact with the workpiece while operating a manipulator to move the workpiece in a corresponding direction, monitoring the movement effected by the tool and the movement effected by the manipulator, and detecting any occurrence of a difference of synchronous movement of the two imparted movements, readjusting at least one of the movement of the workpiece by the tool and the movement of the workpiece by the manipulator by a short term compensation of the difference between them.