Answer
In automated assembly, ensuring the ring is fully seated is critical. A 'partially seated' ring can fly out under the first load application. Verification methods include: 1. 'Vision Systems' that check the ring's 'Gap' or 'End Position'; if the ring is not in the groove, its diameter will be different, changing the end position. 2. 'Probing': A mechanical probe applies a small axial back-load to the ring; if it moves, it is not seated. 3. 'Air Gauging': Measuring the pressure drop in the bore; a correctly seated ring creates a specific profile. The most robust method is a 'Post-Assembly Compression' where the automated tool attempts to 'over-seat' the ring, followed by a camera check to ensure the ring has snapped back into its design diameter within the groove.
