Chamber-by-Chamber Decoding: Optical Profiling vs Mechanical Depth Micrometers
Engineering Overview: Quality control guide on verifying key cut depths using optical profile projectors and mechanical dial micrometers in factory production.
Technical & Engineering Specifications
| Quality Gate | 100% Dimensionally Verified Master Key Batches |
|---|---|
| Magnification | 20x to 50x Telecentric Lens |
| Inspection Metrology | 2D Optical Profile Projector & Digital Micrometer |
| Measurement Accuracy | +/- 0.002 mm Optical Resolution |
Factory Quality Control Metrology
Every batch of factory-cut keys undergoes rigorous bitting verification before shipment:
- Mechanical Dial Micrometers: Precision anvil gauges measuring root cut depth directly against key blade reference datums ($\pm 0.01 ext{ mm}$).
- Optical Profile Projectors (20x–50x Magnification): Non-contact digital shadowgraphy verifying root cut radii, step transition angles, and blade thickness simultaneously.
Frequently Asked Engineering & Selection Questions
Q1: How are key cuts inspected in lock factories?
Using high-precision optical profile projectors and digital micrometers that verify cut depths and root angles down to +/-0.002 mm.