Manufacturing Insight: Titanium Anodizing Kit

Manufacturing Insight: Titanium Anodizing Capabilities at Honyo Prototype

Titanium anodizing is a critical surface enhancement process for demanding industrial applications, providing both functional protection and aesthetic customization where standard finishes fall short. As a core competency within Shenzhen Honyo Prototype’s advanced CNC machining ecosystem, our engineered anodizing process leverages precise electrochemical principles to transform the naturally passive oxide layer on titanium substrates. This controlled oxidation, achieved by submerging the part in a specialized electrolytic bath and applying a carefully regulated direct current, significantly increases surface hardness, wear resistance, and corrosion protection compared to bare titanium. Crucially, the process simultaneously enables highly repeatable coloration across the visible spectrum without dyes, solely through interference effects dictated by the precise oxide layer thickness – a parameter directly controlled by the applied voltage. This capability is indispensable for medical implants requiring biocompatibility verification, aerospace components needing traceable identification, and high-end consumer products demanding specific brand aesthetics.

Honyo Prototype integrates titanium anodizing seamlessly within our end-to-end manufacturing workflow, ensuring dimensional integrity and surface quality from raw billet to finished part. Our dedicated anodizing line is designed specifically for the unique challenges of titanium, featuring multi-stage cleaning and etching pre-treatments essential for optimal adhesion and uniformity, followed by precision-controlled anodizing cells with real-time voltage and temperature monitoring. We maintain strict process control over critical parameters including electrolyte composition, current density, immersion time, and rinsing protocols to guarantee consistent, defect-free results batch after batch. This level of control is paramount for meeting the stringent requirements of ISO 13485 certified medical devices or aerospace specifications where surface properties directly impact performance and safety. Our engineering team collaborates closely with clients during the design phase to optimize part geometry and material selection (Grades 2, 5, and custom alloys) for successful anodizing, mitigating risks like edge burning or uneven coloration.

Our commitment to quality is embedded in rigorous in-process and final inspection. Every anodized component undergoes verification of color consistency against calibrated standards, precise oxide thickness measurement via eddy current or coulometric methods, and adhesion testing per ASTM F86. We provide comprehensive process documentation, including voltage-to-color correlation data and thickness reports, essential for client traceability and regulatory submissions. Below are key operational parameters defining our standard production capability:

| Parameter | Specification Range | Control Tolerance |

| :—————– | :————————— | :—————- |

| Voltage Range | 5V – 120V DC | ±0.5V |

| Color Spectrum | Bronze, Blue, Purple, Green, Gold, Multi-color gradients | ΔE < 1.5 (vs. standard) |

| Oxide Thickness | 0.1μm – 2.0μm | ±0.5μm |

| Max Part Dimension | 600mm x 400mm x 300mm (LxWxH) | N/A |

| Material Grades | Ti-6Al-4V (Gr5), CP Ti (Gr2), Custom Alloys | N/A |

Leveraging Honyo Prototype’s expertise in titanium anodizing ensures your components achieve the necessary surface performance and visual identity while maintaining the tight tolerances and structural integrity produced by our precision CNC machining. We deliver not just a surface treatment, but a validated, integrated manufacturing solution.


Technical Capabilities

Titanium Anodizing Kit – Technical Capabilities

Shenzhen Honyo Prototype specializes in advanced CNC machining services tailored for high-performance applications, including the production of precision titanium anodizing kits. Our capabilities in 3-axis, 4-axis, and 5-axis milling, combined with precision turning and tight-tolerance machining, ensure superior component quality, dimensional accuracy, and surface finish required for reliable anodizing performance.

Our titanium anodizing kits are engineered for durability and electrical efficiency, with components machined from aerospace-grade titanium alloys. These kits require exacting tolerances to ensure proper electrical contact, heat dissipation, and compatibility with various anodizing electrolytes. Utilizing state-of-the-art CNC equipment and in-process inspection, we achieve consistent repeatability and surface integrity critical for post-machining surface treatments.

The core structural and conductive elements of the kit—including jigs, racks, clamps, and bus bars—are fabricated using high-purity Grade 2 and Grade 5 titanium (Ti-6Al-4V), selected for their excellent corrosion resistance, conductivity, and mechanical stability under anodizing conditions. These materials are compatible with both Type II (decorative) and Type III (hard coat) anodizing processes.

Our multi-axis milling platforms enable complex geometries and undercuts necessary for custom fixturing, while live tooling on turning centers allows for fully finished components in a single setup. This integrated approach reduces lead time and enhances positional accuracy across critical features.

The following table outlines the standard machining tolerances and compatible materials we employ in the fabrication of titanium anodizing kit components:

| Process | Typical Tolerance | Surface Finish (Ra) | Max Work Envelope (mm) | Materials Supported |

|———————–|——————-|———————-|————————|———————————-|

| 3-Axis CNC Milling | ±0.010 mm | 0.8 – 1.6 µm | 1000 × 600 × 500 | Ti Gr2, Ti Gr5, Al 6061, 7075 |

| 4-Axis CNC Milling | ±0.008 mm | 0.4 – 1.6 µm | 800 × 500 × 400 | Ti Gr2, Ti Gr5, Inconel 718 |

| 5-Axis CNC Milling | ±0.005 mm | 0.4 – 0.8 µm | 600 × 600 × 400 | Ti Gr5, Ti Gr2, Stainless 316L |

| CNC Turning | ±0.010 mm | 0.8 – 1.6 µm | Ø400 × 600 mm | Ti Gr2, Ti Gr5, Al 6061-T6 |

| Tight Tolerance Machining | ±0.003 mm | 0.2 – 0.4 µm | 300 × 300 × 200 | Ti Gr5, Ti Gr2 (polished grades)|

All machined parts undergo rigorous CMM inspection and visual checks to ensure compliance with engineering drawings and anodizing performance requirements. We also offer post-machining treatments such as glass bead blasting, electropolishing, and passivation to optimize surface readiness for anodizing.

At Shenzhen Honyo Prototype, our expertise in titanium machining ensures that each anodizing kit meets the highest standards of precision, reliability, and corrosion resistance for industrial and aerospace applications.


From CAD to Part: The Process

Titanium Anodizing Kit Production Workflow: CAD to Finished Part

At Shenzhen Honyo Prototype, our CNC machining process for titanium anodizing kits follows a rigorously defined workflow designed to ensure dimensional accuracy, surface integrity, and optimal readiness for the anodizing stage. This integrated sequence—AI Quote, DFM Analysis, and Production—minimizes rework and guarantees parts meet the stringent requirements of electrochemical surface treatment. The process begins upon receipt of a client’s CAD model, which is immediately processed through our proprietary Honyo SmartQuote AI engine. This system performs an initial geometric and material analysis, cross-referencing against our titanium Grade 5 (Ti-6Al-4V) stock inventory and machine capabilities. It generates a preliminary cost estimate and lead time within minutes, highlighting potential high-risk features like thin walls below 0.5mm or complex internal radii that may require specialized tooling. Crucially, the AI flags features incompatible with subsequent anodizing, such as blind holes prone to electrolyte trapping or sharp internal corners where current density can cause burning.

The CAD model then enters our mandatory Design for Manufacturability (DFM) phase, led by senior engineers. This is not a checklist but a collaborative technical review focused explicitly on anodizing performance. We scrutinize surface finish requirements, verifying that machined surfaces achieve the target Ra value critical for uniform oxide layer growth. Features generating significant heat during machining—like deep pockets or high-feed slots—are assessed for potential microstructural alterations affecting anodizing adhesion. Tolerances are evaluated against the thermal expansion characteristics of titanium during anodizing; overly tight tolerances (< ±0.025mm) on non-critical faces are often adjusted to reduce cost without compromising function. We also confirm all part geometry allows complete drainage and rinsing to prevent chemical retention, a leading cause of anodizing defects. Client approval of the DFM report, including any suggested modifications, is required before proceeding.

Production commences only after DFM sign-off. Titanium Grade 5 stock is verified for material certification and surface condition. CNC machining employs rigid setups, sharp carbide tools, and controlled parameters to minimize heat input and prevent surface smearing. Coolant selection is critical; we use high-purity, low-chloride soluble oil to avoid contaminating the titanium surface, which would cause anodizing streaks. Key machining parameters are strictly controlled as shown in the table below. Post-machining, parts undergo immediate ultrasonic cleaning in dedicated non-ferrous tanks to remove all coolant residues and metal fines, followed by meticulous inspection against the DFM-agreed specifications. Dimensional verification uses CMM, while surface roughness is checked via profilometry. Any deviation, particularly in surface finish or critical feature geometry, triggers corrective action before parts advance to the anodizing line. This seamless integration of quoting, DFM, and precision machining ensures the titanium substrate is perfectly prepared, directly enabling consistent, high-quality anodized finishes that meet aerospace and medical device standards.

| Critical Machining Parameter | Target Value for Anodizing Readiness | Verification Method |

|——————————|————————————-|———————|

| Surface Roughness (Ra) | 0.4 – 0.8 µm | Contact Profilometer |

| Dimensional Tolerance (General) | ±0.05 mm | CMM |

| Minimum Internal Radius | ≥ 0.5 mm | Optical Comparator |

| Surface Cleanliness | Zero visible residue; < 5 mg/ft² non-volatile residue | Wipe Test + Gravimetric Analysis |

| Feature Drainage Angle | ≥ 5° from horizontal | CAD Verification + Visual Inspection |


Start Your Project

Start Your Project with Precision: Choose Honyo Prototype for Titanium Anodizing Excellence

When it comes to achieving superior surface finishes on titanium components, Shenzhen Honyo Prototype stands at the forefront of innovation and precision in CNC machining. Our titanium anodizing kits are engineered to deliver consistent, high-quality results for both prototyping and low-volume production runs. Whether you’re developing aerospace components, medical devices, or high-performance consumer products, our advanced anodizing solutions enhance durability, corrosion resistance, and aesthetic appeal.

At Honyo Prototype, we understand that every project begins with a vision. That’s why we’ve designed our manufacturing workflow to be seamless from concept to completion. Our CNC-machined titanium parts are compatible with our proprietary anodizing processes, ensuring dimensional accuracy and surface integrity throughout treatment. We utilize state-of-the-art equipment and rigorous quality control protocols to maintain tight tolerances and repeatability across all batches.

Our titanium anodizing service supports a range of color finishes through voltage-controlled oxidation, allowing for both functional and decorative customization. This electrochemical process increases surface hardness and wear resistance while enabling part identification through color coding—an essential feature in complex assemblies.

We cater to engineers, product designers, and R&D teams who demand reliability and technical excellence. From initial design review to final inspection, our team collaborates closely with clients to optimize part geometry, material selection, and surface treatment parameters. Our facility in Shenzhen is equipped for rapid turnaround, supporting global clients with fast shipping and responsive communication.

To ensure compatibility and performance, we recommend reviewing key specifications before submission. Below is an overview of our standard titanium anodizing capabilities:

| Parameter | Specification |

|—————————-|————————————————-|

| Material Compatibility | Grade 2, Grade 5 (Ti-6Al-4V), and other commercially pure titanium alloys |

| Color Range | Blue, purple, gold, green, yellow, teal, and gray (voltage-dependent) |

| Voltage Range | 10V – 100V (adjustable in 5V increments) |

| Surface Roughness (Ra) | As-machined finish; typically 0.8–3.2 μm |

| Maximum Part Size | 300 mm × 200 mm × 100 mm |

| Lead Time | 5–7 working days (standard), expedited options available |

| Quality Standards | ISO 9001:2015 compliant, full inspection reports provided |

Starting your project with Honyo Prototype means partnering with a team committed to technical precision and customer success. We do not just manufacture parts—we deliver engineered solutions that meet the highest industry standards.

For technical inquiries, custom requests, or to begin your next project, contact Susan Leo directly at info@hy-proto.com. Our engineering support team is ready to assist with file review, material recommendations, and process optimization tailored to your application. Let us help you transform your designs into high-performance titanium components with flawless anodized finishes.


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