keying-systems

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:

  1. Mechanical Dial Micrometers: Precision anvil gauges measuring root cut depth directly against key blade reference datums ($\pm 0.01 ext{ mm}$).
  2. 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.