Can a Laser Marking Engraving a QR Code
A laser marking/engraving machine can easily engrave a QR code onto various materials with high precision and durability.
Why Use Laser Marking for QR Codes?
✅ Permanent & High Contrast – The laser chemically or physically alters the surface, ensuring long-lasting readability.
✅ High Precision – Lasers can create very small, detailed QR codes (even micro QR codes).
✅ Fast & Automated – Ideal for industrial marking applications (serial numbers, tracking codes).
✅ Works on Many Materials – Metals, plastics, glass, wood, ceramics, and more.
Best Materials for Laser-Marked QR Codes
| Material | Laser Type | Best For |
|---|---|---|
| Stainless Steel | Fiber Laser | Industrial parts, medical devices |
| Aluminum | Fiber Laser | Automotive, aerospace components |
| Plastics (ABS, Polycarbonate) | CO₂ Laser | Electronics, packaging |
| Glass | CO₂ Laser | Bottles, lab equipment |
| Wood & Leather | CO₂ Laser | Decorative items, branding |
Tips for Optimal QR Code Laser Marking
Contrast Matters – Ensure dark marks on light surfaces (or vice versa for readability).
Correct Size – Minimum 10x10mm for easy scanning (smaller may require high-res lasers).
Test Before Mass Production – Verify scannability with multiple devices.
Use Vector Graphics – Avoid pixelation by using SVG or high-DPI images.
Industries Using Laser-Marked QR Codes
Automotive (VIN tracking)
Medical (surgical tool traceability)
Electronics (PCB component IDs)
Jewelry (authentication marks)
