Assembly Processes

To establish an electrical connection, the locking of a snap hook should be checked. Since the event takes place inside the component, the result of the process cannot be checked visually.

Therefore, QASS technology is used for the complete quality control of the joining process. This technology works on the basis of structure-borne sound and perceives even the smallest process noises that are inaudible to the human ear. Thus, the locking of the snap connection can be checked simultaneously with the process using the QASS technology.

The pressing of a plastic element into a metal frame is to be monitored automatically. In particular, it should be checked that no cracks form in the plastic part during the process.

The crack detection during the pressing process is extremely important. If cracks occur in the plastic part during the process, they can lead to fatigue fracture and functional failure of the component under normal functional load.

After press-fitting, the plastic element is no longer completely accessible visually, which makes a complete optical crack detection impossible. The QASS structure-borne sound technology is used. This is because it allows a view into the interior of the component.