The lid of the electronic package, which also has a reinforcing function for the circuit board, is joined by means of transmission welding. Despite the black colouring with a special pigment, the lid material is transparent for the laser beam.
The sleeve is welded on to the position sensor itself with a screw-on tag. During the welding process, the pre-assembled part is rotated around the longitudinal axis and radiated from the side with a stationary laser at the height of the weld root face (collar). The result is a strong, gas-tight welding seam.