Ti-6Al-4V ELI (ASTM F136) — Standard Implant Alloy

• Most widely documented and FDA-recognized implant grade
• Reduced interstitial oxygen content (ELI variant) improves ductility
• Excellent fatigue resistance for long-term cyclic loading
• Well-established regulatory precedent across FDA, CE, and MDR submissions
• Preferred for load-bearing orthopedic and spinal applications

Ti-6Al-7Nb (ASTM F2068) — Vanadium-Free Alternative

• Eliminates vanadium concern for long-term tissue interaction
• Higher strength-to-weight ratio than F136 equivalent geometries
• Preferred in European markets with evolving vanadium regulations
• Narrower regulatory precedent — newer standard with fewer historical submissions
• Selected for high-stress hip and femoral replacement components

Process Annotation: Titanium requires dedicated carbide tooling with through-tool coolant delivery. Reduced cutting speeds (40–80 m/min) compared to aluminum prevent thermal damage. Flood coolant with high-pressure through-spindle delivery maintains cutting zone temperature below 200°C, preventing alpha-case formation on machined surfaces.

Inspection Protocol: CMM dimensional verification before and after surface treatment. Anodizing changes effective dimensions by coating thickness (5–15 μm). Pre-treatment machining compensates this offset on patient-contact features. Full inspection report with material cert cross-reference included per shipment.

Client required a multi-hole fixation plate with patient-contact surface roughness Ra ≤0.4 μm and ±0.005 mm positional accuracy on screw-hole pattern for surgical alignment precision.

F136-certified bar stock with full traceability. 5-axis simultaneous machining completed in single setup for positional consistency. Progressive mirror finishing on patient-contact surfaces achieving Ra 0.2 μm.

Screw-hole positional accuracy verified at ±0.003 mm. Surface roughness confirmed at Ra 0.2 μm on patient-contact faces. Full documentation package delivered: material cert, heat trace, and CMM dimensional report.

Complex framework geometry with micro-thread features (0.3 mm pitch) and thin connecting arms (0.6 mm) required high-precision machining without feature deformation.

5-axis machining with custom fixture providing progressive support for thin-wall sections. Single-setup completion eliminated repositioning error accumulation. Thread tapping with dedicated titanium tooling and calibrated torque control.

Micro-thread dimensions verified within ±0.008 mm. Thin-arm wall thickness maintained within specification. Framework assembled to specification on client test fixture.

Ergonomic handle geometry with textured grip features and internal bore for instrument shaft. Multiple surface finish zones: polished patient-contact and textured surgeon-grip areas.

CP-Ti Gr.2 for enhanced formability. Multi-stage finishing: roughing for textured grip zone (Ra 3.2 μm), progressive polishing for patient-contact surfaces (Ra 0.4 μm). Gold anodizing (Type II) for instrument identification marking.

Dual-surface specification achieved in single machining workflow. Grip texture maintained for ergonomic function. Gold anodized markings visible under surgical lighting. Full documentation package with material cert and biocompatibility declaration.

Ti-6Al-4V ELI (ASTM F136) offers the best machinability-to-strength ratio for load-bearing implants. CP-Ti Grade 2 (ASTM F67) is preferred for dental and formability-focused applications. Ti-6Al-7Nb (ASTM F2068) is selected when vanadium-free composition is required.

F136 (Ti-6Al-4V ELI) for established FDA precedent and load-bearing orthopedic/spinal applications. F2068 (Ti-6Al-7Nb) for European regulatory preference and high-stress hip/femoral components where vanadium elimination is advantageous.

Standard: ±0.02 mm. Precision: ±0.005 mm on critical features. Tighter achievable with multi-pass finishing and temperature-controlled machining environment on specific geometries.

Yes. Ti-6Al-4V serves both sectors. Medical-grade ELI variant has reduced interstitial oxygen for ductility. Aerospace-grade variant (ASTM B265) has higher oxygen allowance for strength. Different specification strands — material certification must match application domain.

Type II anodizing (5–15 μm, gold/blue tones) available for instrument identification and non-contact surfaces. Type III hard anodize not recommended for patient-contact features. All anodizing verified per ASTM B600 for biocompatibility compliance.

2D: PDF, DWG, DXF. 3D: STEP, IGES, SolidWorks. Physical samples accepted for reverse engineering with CMM digitization. Medical drawing packages must include dimensioned patient-contact features with tolerance specifications.

Standard geometry: 5–7 days. Complex thin-wall or multi-axis: 10–14 days. Expedited service available for surgical scheduling or regulatory submission deadlines.

As-machined (Ra 0.8–3.2), polished (Ra 0.2–0.4 mirror), anodized Type II (gold/blue, 5–15 μm), and bead-blasted for textured grip zones. Patient-contact surfaces consistently achieve Ra ≤0.4 μm.

ASTM F136/F2068 certified bar stock with full mill certification and heat number traceability. Dedicated titanium-only toolpaths prevent ferrous contamination. Process validation per ISO13485 framework with documented cleaning and surface verification protocols.

Yes. MOQ starts at 1 piece. CNC machining is inherently low-volume friendly. Production scheduling from 1 to 5,000+ unit runs with reserved capacity for scheduled deliveries and validated first-article inspection protocols.