Digital quality inspection is reshaping production workflows for rail‑transit rubber‑metal damping components. Traditional manual testing cannot fully capture tiny internal defects like micro‑cracks and bonding gaps hidden inside composite parts.

More domestic manufacturers introduce AI‑aided non‑destructive testing for elastomer products. X‑ray scanning and ultrasonic detection automatically identify hidden flaws after vulcanization. Production data from mixing, moulding and bonding procedures are logged into traceability systems, making every batch of bogie bushes and elastic joints fully trackable.

The digital approach reduces defective rate significantly and helps suppliers satisfy strict CRRC supplier audit standards. Industry observers point out that traceability capability has become a basic requirement for participating in major rail tender projects, pushing small‑and‑medium component factories to speed up intelligent upgrading.