Titanium Machining Services

Overview: What Is Titanium Machining?

Titanium machining is the controlled cutting and shaping of titanium and titanium alloys into accurate components with CNC equipment. The material combines high specific strength, corrosion resistance, biocompatibility, and useful performance at elevated temperatures. Those properties make titanium important in aerospace, medical, automotive, marine, chemical processing, energy, robotics, and precision industrial equipment. The same properties also demand disciplined process planning. Reliable results depend on rigid workholding, sharp tools, stable chip formation, generous coolant delivery, and inspection matched to the part’s function.

Why Titanium Is Challenging to Machine

Titanium does not machine like steel or aluminum. Heat tends to remain close to the cutting edge because titanium has low thermal conductivity. That localized heat accelerates tool wear and can alter surface quality if feeds, speeds, coolant, or tool engagement are not controlled. Titanium is also chemically reactive at cutting temperatures, so chips can adhere to the cutting edge and cause galling or built-up edge. Its relatively low modulus allows thin walls, long features, and slender parts to deflect under cutting forces.

• Heat concentration: High-pressure coolant and controlled tool engagement help move heat away from the cutting zone.
• Tool reactivity: Sharp carbide tooling, suitable coatings, and predictable tool-change intervals reduce adhesion and wear.
• Part deflection: Rigid fixtures, balanced stock removal, and finishing passes protect thin or flexible geometry.
• Work hardening: Positive chip load and continuous cutting prevent tools from rubbing across a hardened surface.
• Chip control: Programmed engagement, evacuation, and coolant delivery reduce recutting and surface damage.

Our Titanium Machining Capabilities

Unity Manufacture plans each job around grade, geometry, tolerance, surface finish, quantity, and inspection needs. Multi-axis machining reduces setup count for complex parts and helps maintain the relationship between critical features. CNC turning and Swiss-type processes support shafts, fasteners, bushings, sleeves, medical components, and other rotational parts. Milling covers brackets, housings, frames, impellers, structural components, and parts with compound angles or deep features.

• 3-, 4-, and 5-axis CNC milling for prismatic and complex freeform geometry.
• CNC and Swiss-type turning for precise diameters, threads, grooves, and long slender components.
• High-pressure coolant delivery to manage temperature and evacuate chips from the cutting zone.
• Titanium-focused tooling including carbide and application-specific cutting geometries.
• Prototype and production workflows with documented revisions, repeatable setups, and scalable inspection.
• In-house dimensional verification using CMM and conventional metrology selected for the drawing requirements.

Tolerances, Inspection, and Documentation

Tolerance capability depends on part size, feature type, wall thickness, material condition, setup strategy, and measurement method. General features can follow ISO 2768, while qualified critical features can be planned to tighter limits, including capability down to ±0.005 mm where geometry and process conditions allow. Drawings should clearly identify datums, critical-to-function characteristics, surface finish, thread standards, and any geometric tolerancing. Our engineering review checks these requirements before production so inspection effort is focused where it adds value.

Available quality documentation includes dimensional inspection reports, CMM results, First Article Inspection, material mill certificates to EN 10204 3.1, and compliance documentation such as RoHS or REACH when requested. Material traceability, inspection level, sampling plan, and reporting format should be agreed during quoting. This avoids unnecessary cost while ensuring the delivered evidence matches purchasing and regulatory needs.

Choosing a Titanium Grade and Finish

Commercially pure Grades 1 through 4 provide corrosion resistance and formability with increasing strength across the grade range. Ti-6Al-4V Grade 5 is widely specified where a strong balance of strength, weight, and availability is required. Grade 23 ELI supports applications that need high fracture toughness and biocompatibility. Grade 9 and specialized beta alloys address distinct forming, strength, or service requirements. Grade selection should be based on the drawing, environment, mechanical loads, certification requirements, and downstream processing.

The as-machined condition is often appropriate for internal or purely functional surfaces. Polishing, electropolishing, bead blasting, passivation, anodizing, PVD, DLC, laser marking, and heat treatment can be added when the application requires lower roughness, appearance control, corrosion performance, wear resistance, identification, or mechanical property adjustment. Finish choice can affect dimensions and masking requirements, so critical interfaces should be identified before machining.

Design for Reliable Titanium Parts

Early design-for-manufacturability review can improve quality and reduce unnecessary machining time. Consistent wall thickness, accessible internal corners, practical tool reach, stable datum features, and tolerance values tied to function all support a more reliable process. Deep pockets, thin ribs, long unsupported diameters, and interrupted cuts may require special tools, staged stock removal, or additional setups. Threads, sealing faces, bearing fits, and surfaces affected by finishing should be called out clearly on the drawing. For production work, it is also useful to identify inspection frequency, traceability, packaging, and change-control requirements before the first batch. These decisions help engineering and quality teams choose an efficient route without compromising the features that control performance.

Typical Titanium Applications

Precision titanium components are used for aerospace brackets and structural hardware, medical implants and surgical tools, motorsport connecting parts, marine fasteners and shafts, chemical-processing equipment, robotics joints, and lightweight industrial assemblies. For design feedback, material selection, inspection planning, or a production quotation, contact our engineering team. You can also review our broader CNC machining services and return to the Unity Manufacture homepage.