Laser Marking & Custom Logo Services
Permanent, high-contrast laser marking for titanium components — pigment-free annealing for medical instruments, deep engraving for industrial traceability, and high-speed UID/DataMatrix serialization for MIL-STD-130 and FDA UDI compliance.
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Marking Process Spectrum
Three dedicated titanium laser personalization and traceability workflows — engineered for pigment-free annealing, permanent deep engraving, and production-scale serialization.
Laser Annealing
Inducing localized subsurface phase transformations to grow dense, pigment-free dark TiO₂ layers, custom-built to retain 100% sterile anti-corrosion bounds on medical tools.
- Low-power pulsed fiber laser (10–30 W, 1064 nm) induces controlled subsurface Ti→TiO₂ phase transformation without ablating surface material
- Produces dense, pigment-free dark marks (charcoal to black) via oxide layer thickness interference — zero added inks or chemical pigments
- Mark retains 100% of original surface anti-corrosion properties — validated via ASTM B117 salt spray (1,000+ hours zero-fading)
- Ideal for medical instruments: mark depth < 5 µm leaves no crevices for bacterial colonization, fully sterilizable via autoclave, gamma, and EtO cycles
Architectural Deep Engraving
Vaporizing designated metal matrices under controlled multi-pass frequencies to generate physical micro-grooves that outlast heavy post-blasting and chemical etching runs.
- Multi-pass Q-switched fiber laser (30–100 W) with galvo scanning head — each pass removes 5–15 µm of material for controlled depth engraving (20–500 µm)
- Physical micro-grooves create tactile, permanent marks that withstand post-processing blasting, chemical etching, and passivation baths
- Engraving depth and width independently programmable — fine text (0.2 mm stroke) to deep serial numbers (0.5 mm deep) on the same part
- Process validated for titanium alloys Grade 2, 5 (Ti-6Al-4V), and 23 (Ti-6Al-4V ELI) with consistent ±5 µm depth repeatability
UID & DataMatrix Serialization
Executing high-speed, synchronized dynamic array engraving to print individual barcodes directly linked to production databases for instant tracking readout profiles.
- Synchronized dynamic marking at speeds up to 200 characters/second — each part receives a unique serialized UID or 2D DataMatrix code in < 1 second cycle time
- Direct database integration: serial numbers auto-generated and synced to ERP/MES — no operator data entry, zero transcription errors
- DataMatrix codes compliant with MIL-STD-130 (defense UID) and UDI (Unique Device Identification) per FDA 21 CFR Part 830
- Readable at > 99.5% first-pass scan rate across all titanium surface conditions (polished, anodized, matte, passivated) — verified across 10,000+ production parts
Laser Marking Specifications Dashboard
Our laser marking processing resolutions — annealing depth limits, engraving depth boundaries, serialization speed, and contrast quality thresholds.
Annealing Penetration Depth
Ultrathin subsurface oxide layer depth for pigment-free dark marks — preserving surface integrity and anti-corrosion properties for medical and aerospace components.
Engraving Depth Range
Controlled material removal depth span for tactile, permanent marks — from fine text to deep serial numbers, independently programmable on the same component.
Serialization Throughput
High-speed dynamic marking throughput for production-scale UID/DataMatrix serialization — each part uniquely identified in under one second.
Mark Contrast Threshold
Minimum achievable contrast ratio between laser mark and surrounding surface — ensuring reliable first-pass readability across all titanium surface conditions.
All specifications measured under ISO/IEC 15416 barcode grading, ASTM B117 corrosion testing, and controlled laboratory conditions. Actual results depend on titanium grade, surface finish, and marking geometry.
Thermal Stress & Contrast Control Engineering
Two critical laser marking challenges — preventing thermal stress micro-cracking during deep engraving and achieving contrast consistency across batch runs and varying titanium surface conditions.
Thermal Stress Micro-Crack Prevention
During high-power laser deep engraving (30–100 W), rapid localized heating and cooling cycles generate thermal shock stress micro-cracks in the heat-affected zone — compromising component fatigue life and creating sites for corrosion initiation in mission-critical titanium parts.
Multi-Pass Low-Energy Scanning Loops + Cryogenic Air Assist Cooling (+5°C to -10°C) to Absorb Thermal Shock Between Each Pass
- Multi-pass strategy: instead of single-pass deep engraving, 10–50 shallow passes (5–15 µm per pass) distribute thermal load over multiple cycles — peak temperature per pass reduced by 60% vs. single-pass approach
- Cryogenic air assist cooling nozzle delivers chilled air stream (+5°C to -10°C) directly to the engraving zone between passes — extracting heat before it diffuses into the substrate and creates thermal gradient stress
- Inter-pass dwell time (50–200 ms) programmed into the marking sequence — allowing the localized heat to dissipate before the next laser pass begins, preventing cumulative heat build-up
- Validated via metallographic cross-section examination: zero micro-cracks in heat-affected zone across 1,000+ engraved titanium samples (Grade 2, 5, 23) — verified by SEM at 500× magnification
Contrast Consistency Across Batches
Titanium surface condition variations (as-machined Ra 0.4–3.2 µm, anodized colors, passivated layers, or heat-treated oxide films) cause inconsistent laser energy absorption — resulting in variable mark darkness, readability failures, and aesthetic rejection across batch runs.
Dynamic Laser Power Modulation (50–100% Peak) via Real-Time Surface Reflectivity Feedback — Auto-Compensating for Surface Condition Variations
- Real-time surface reflectivity monitoring via co-axial photodiode — laser power is dynamically modulated (50–100% of peak) within microseconds to compensate for surface condition variations across the marking field
- Pre-scan calibration routine: a low-power test pulse matrix maps surface reflectivity across the entire marking area — power profile adjustments are computed and applied before the main marking pass begins
- Closed-loop contrast verification: integrated vision system captures mark contrast immediately after marking — if below ΔE threshold (> 40% contrast vs. background), an automated re-mark cycle is triggered with adjusted parameters
- Validated across 50+ production batches: consistent mark contrast ΔE > 40% across as-machined, anodized (gold, blue, purple), passivated, and heat-treated titanium surfaces — zero readability failures in automated vision inspection
Every laser marking project is backed by thermal stress simulation, cryogenic cooling validation, and real-time contrast quality assurance. Precision photonics meets permanent traceability.
Submit Your Marking Specifications for Engineering Review
Medical device engineers, aerospace traceability managers, and defense contractors — submit your part drawings, marking specifications, and serialization requirements for a rapid 24-hour engineering review with full laser process feasibility assessment. Fully confidential under NDA.
One Metal. One Focus. Infinite Precision.
Founded in 2011 in Baoji's Titanium Valley, BOZE Metal is dedicated exclusively to titanium — from raw material to precision engineering. AS9100D, ISO 13485 & ISO 9001 certified with 500+ clients across Aerospace, Medical & Motorsport industries, we deliver end-to-end precision titanium CNC machining with full material traceability from source to component.
Boze CNC Ti is the dedicated titanium manufacturing center of Baoji Boze Metal Products Co., Ltd.