Background
Developing a new optical measurement technique in the lab is only half the battle. Deploying that technique to a factory floor halfway around the world, where it must be operated by technicians 24/7, requires a different level of rigor.
The Challenge
A critical optical inspection step was proving unreliable as the product transitioned from R&D to New Product Introduction (NPI). The lab setup was highly sensitive to alignment and ambient light, and false-reject rates on the pilot line were unacceptably high. The client needed to ruggedize the measurement for mass production.
The Approach
We took a systematic approach to ruggedize the inspection station:
- CTQ Definition: We clarified the exact Critical-to-Quality metrics that the station needed to control, separating them from “nice-to-have” lab data.
- Hardware Optimization: We overhauled the optical train, selecting more robust sensors, telecentric optics, and stable illumination sources that were less sensitive to part presentation variation.
- Gauge R&R: We conducted rigorous Gauge Repeatability and Reproducibility studies to prove that the measurement system variance was a fraction of the total part tolerance.
- Deployment & SOPs: We created clear Standard Operating Procedures for calibration and operation, and aligned the equipment integrators on the final specifications.
The Outcome
The modernized inspection station achieved a dramatic reduction in false rejects and cycle time. The manufacturing team gained a robust, reliable test method, clearing a major hurdle for the product’s successful launch into mass production.