Titanium CNC Parts

1. Introduction to Titanium CNC Parts

Titanium CNC Parts are precision-engineered components manufactured using CNC (Computer Numerical Control) machining of titanium alloys. Renowned for their exceptional strength-to-weight ratio, corrosion resistance, and biocompatibility, these components are widely used in demanding sectors such as aerospace, medical, marine, and high-performance automotive industries.

Thanks to advanced CNC Machining processes, titanium parts can achieve tight tolerances (±0.005 mm) and intricate geometries. Among available materials, Titanium Grade 5 (Ti-6Al-4V) is the most commonly used, offering superior tensile strength (up to 1,000 MPa), fatigue resistance, and thermal stability.

2. Technical Characteristics of Titanium CNC Parts

2.1 Mechanical Properties

Titanium CNC machined parts provide outstanding mechanical performance:

• Yield Strength: 830–900 MPa (Grade 5)

• Elastic Modulus: 110 GPa (lower than steel, beneficial for reducing stress shielding)

• Hardness: 36 HRC

• Fatigue Strength: 500 MPa at 10⁷ cycles

These characteristics make CNC Titanium Parts suitable for dynamic and load-bearing applications.

2.2 Corrosion Resistance

Titanium forms a passive oxide layer (TiO₂) which contributes to:

• Excellent seawater resistance (corrosion rate: 0.0025 mm/year)

• Immunity to pitting corrosion in chloride-rich environments up to 100°C

• High acid resistance, except in hydrofluoric and concentrated sulfuric acids

This enables titanium CNC components to maintain integrity in marine, medical, and chemical environments.

2.3 Thermal and Electrical Properties

• Melting Point: 1,668°C

• Thermal Conductivity: 6.7 W/m·K

• Thermal Expansion Coefficient: 8.6×10⁻⁶/°C

• Specific Heat Capacity: 0.526 J/g·°C

• Electrical Resistivity: 1.78 µΩ·m

Titanium retains mechanical stability at temperatures up to 400°C, making it ideal for CNC machined titanium parts in high-heat environments.

2.4 Machining Characteristics

Titanium presents unique challenges during CNC processing:

• Low thermal conductivity causes localized heat (up to 600°C at the tool tip)

• High reactivity leads to galling and rapid tool wear

• Special coatings and cooling methods are required

• Cutting Speeds: 30–60 m/min (roughing), 60–90 m/min (finishing)

Our Titanium CNC Machining Services use advanced tooling, coatings, and programming to manage these issues efficiently.

3. Manufacturing Process and Capabilities

We offer comprehensive Titanium CNC Fabrication, covering:

• CNC Turning & Milling for complex geometries

• 5-Axis CNC Machining for high-precision titanium components

• EDM (Electrical Discharge Machining) for delicate features

• Drilling, tapping, threading and finishing processes

• Tolerances: up to ±0.005 mm

• Prototyping to mass production, supported with full documentation

4. Surface Finishing Options

To enhance performance and appearance, our Titanium CNC Parts can be surface-treated with:

• Anodizing (20–100V DC): creates 0.5–5 µm oxide layers for wear and corrosion resistance

• Passivation: performed in nitric acid to enhance corrosion resistance

• Polishing: for surgical and cosmetic-grade finishes

• Bead Blasting: produces matte, non-reflective surfaces

• Laser Marking: ideal for part traceability or branding

• Dry Film Lubricants (MoS₂): reduce friction under high-temperature operation

5. Applications of Titanium CNC Parts

5.1 Aerospace Industry

Aerospace applications represent 42% of global titanium consumption. Titanium is used in:

• Engine Components: compressor blades, turbine discs, high-temperature fittings

• Airframe Structures: brackets, bulkheads—offering 30% weight savings

• Fasteners: up to 1,100 MPa shear strength

5.2 Medical Devices

Titanium's biocompatibility and sterilization resistance make it essential for:

• Orthopedic Implants: hip stems, bone screws (700 MPa endurance limit)

• Dental Implants: CNC precision to 0.1 µm surface roughness

• Surgical Tools: withstand autoclave sterilization at 135°C

5.3 Marine and Offshore

Ideal for long-term saltwater exposure:

• Propeller Shafts: with fatigue performance over 10⁹ cycles

• Subsea Connectors: rated for 6,000 m depths

• Desalination Components: resist salinity up to 70,000 ppm

5.4 High-Performance Automotive

Motorsport and performance applications include:

• Connecting Rods: 20% lighter than steel

• Exhaust Systems: operating at 800°C

• Valve Springs: rated for 10⁸ cycles at 8,000 rpm

6. Maintenance of Titanium CNC Parts

6.1 Cleaning Procedures

• Use pH-neutral detergents (6–8) to protect oxide layers

• Apply ultrasonic cleaning (40 kHz) for precision components

• Use 99% Isopropyl Alcohol for degreasing without residue

6.2 Surface Protection

• Anodizing and passivation improve wear and corrosion resistance

• MoS₂ or graphite lubricants reduce friction in moving parts under 400°C

6.3 Inspection and Monitoring

Preventive maintenance includes:

• Eddy Current Testing: detects surface cracks ≥0.5 mm deep

• Ultrasonic Thickness Measurement: accuracy up to ±0.01 mm

• Visual Inspection: 10x magnification for galling or wear detection

6.4 Storage Conditions

• Humidity below 40%

• Avoid contact with cadmium or zinc (prevents embrittlement)

• Use VCI packaging for long-term storage

6.5 Lubrication Guidelines

• Use ISO VG 68 oil for most moving components

• High-temp greases (e.g., lithium complex) for up to 180°C

• Graphite lubricants for vacuum or aerospace environments

7. FAQs – Titanium CNC Parts

Q1: What titanium grades do you offer for CNC machining?
A: We offer Grade 2, Grade 5 (Ti-6Al-4V), and Grade 23 (Ti-6Al-4V ELI), suitable for aerospace, medical, and industrial applications.

Q2: What is the maximum precision you can achieve?
A: We offer ±0.005 mm tolerance, depending on part complexity and dimensions.

Q3: Can you provide surface treatments for titanium CNC parts?
A: Yes. We offer anodizing, passivation, polishing, and more based on application needs.

Q4: Do you provide inspection and test reports?
A: Absolutely. We provide material certificates, CMM reports, and dimensional inspection data upon request.

Q5: What industries commonly use your titanium CNC components?
A: Aerospace, medical, marine, automotive, and precision equipment sectors.