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Machining titanium

Introduction to machining titanium

Titanium is hard on cutting tools because it holds heat at the cutting edge, hardens as it is cut and springs back against the tool. Carbide tooling with a PVD coating is generally the best choice, with HSS suited to lower-speed or less stable setups. The tool path, coolant and workholding matter as much as the tool itself.

Exactaform’s carbide and HSS tooling solutions are designed to withstand the intense heat and cutting demands of titanium machining, offering exceptional wear resistance, improved heat dissipation, and optimised cutting geometries. Whether for aerospace pylons or high-performance automotive components, our tools ensure precision, efficiency, and tool longevity in demanding applications – key across a wide range of industrial applications of titanium, especially in lightweight design-focused sectors.

Why titanium is difficult to machine

Heat stays near the cut. Titanium conducts heat poorly, so much of the heat goes into the tool. A dulling edge creates more heat, and the cycle continues until the tool fails.

It hardens as it is cut. If the tool rubs or dwells, the surface work-hardens and becomes tougher and more abrasive for the next pass.

It is springy. Titanium pushes back against the tool, so a blunt edge rubs and chatters instead of cutting.

It makes long chips. Long, stringy chips can damage the tool and mark the part, and they do not carry heat away from the cut.

Titanium types and how they machine

Commercially pure titanium is the easiest type to machine. Alpha alloys contain aluminium, oxygen or nitrogen. Beta alloys contain elements such as molybdenum, iron, vanadium, chromium or manganese. Mixed alpha-beta alloys combine the two. The type you are cutting changes how it behaves, so tell us the grade when you ask for a recommendation.

Choosing the right tooling

  • Carbide tooling with a PVD coating is generally the best-suited choice for cutting titanium. Coatings designed for high temperatures, such as TiAlN-type coatings, are available.
  • Keep the edge sharp. A blunt tool rubs rather than cuts and causes chatter.
  • HSS suits lower speeds and less stable conditions.
  • Browse our carbide tools, solid end milling, turning and holemaking ranges, or our bespoke tooling solutions.

Cutting strategy that extends tool life

  • Keep the cutter engaged without dwelling. For slots, a trochoidal path limits how long each flute stays in the cut.
  • Arc the tool into and out of the cut to avoid shock.
  • Keep the feed constant so the tool is not cutting work-hardened material, and raise it if the machine allows, so heat has less time to build.
  • Use plenty of coolant. High-pressure coolant directed at the cut keeps the contact area cool and clears chips. When turning, a lower pressure on finishing cuts can avoid chips being redeposited on the surface.
  • Hold the work firmly. Thin sections often need bespoke workholding for final operations.
  • Use a rigid machine, able to run at low spindle speed with high torque.
  • Aim for smaller, thicker chips, which carry heat away better than long, thin ones.

Need a titanium tooling recommendation?

Tell us your grade and operation and an application engineer will recommend the right tool. Request a titanium tooling recommendation or speak to an application engineer. Machining titanium for aerospace? See our aerospace industry page or the learning centre.

What Tool groups can you use to machine Titanium?

Titanium’s toughness, low thermal conductivity, and complex machining characteristics make cutting tool selection critical to achieving both high-quality machined components and extended tool life. The right cutting tools ensure precision, efficiency, and longevity, preventing common challenges like built-up edge formation and excessive heat generation.

  • Carbide Tools:
    The preferred choice for machining titanium, offering high wear resistance and thermal stability, ensuring precision in aerospace and automotive applications where light metals are often specified for performance.
  • High-Speed Steel (HSS) Tools:
    Suitable for low-speed machining and unstable cutting conditions where carbide may not be ideal.

Selecting the correct cutting tools improves process stability and machining efficiency - crucial for managing the effects of titanium’s reactivity and achieving optimal results.

What would you use Titanium as a material for?

Aerospace Applications

Titanium’s high strength-to-weight ratio and heat resistance make it a critical material in aircraft manufacturing, especially in sectors demanding lightweight design and durable materials.

  • Pylons & Load Bearing Structures:
    Providing durability in high-stress environments.
  • Aircraft Fasteners & Engine Components:
    Reducing weight while maintaining extreme strength.

Automotive Applications

Titanium is used in high-performance and motorsport applications, where durability and heat resistance are essential.

  • Engine Components:
    Turbochargers, exhaust systems, and lightweight engine parts.
  • Structural Parts:
    Increasing efficiency and fuel economy in performance vehicles.

As a metal known for its high hardness scale rating, titanium’s mechanical properties ensure long-lasting performance and reliability across industrial applications of titanium.

Why would you choose titanium material? What are its properties?

Titanium is used in the aerospace, automotive, and other high-performance engineering industries for its combination of strength, durability, and corrosion resistance, making it essential in industries requiring lightweight and high-performance materials.

  • Exceptional Strength:
    As strong, if not stronger than many common metals like steel, but significantly lighter.
  • Corrosion Resistance:
    Naturally resists rust, oxidation, and chemical exposure.
  • Low Density:
    Provides strength without adding excessive weight, ideal for lightweight design.
  • High Melting & Boiling Points:
    Can withstand extreme heat and pressure, supporting the industrial application of titanium.
  • Reactivity: Titanium reacts with many tool materials at cutting temperatures, so coatings and plenty of coolant matter.
  • Hardness & Ductility:
    Tough yet formable, offering excellent mechanical properties for complex component manufacturing.

Bespoke tooling solutions for Titanium

Exactaform provides bespoke tooling solutions for titanium machining, specialising in carbide and HSS tools. Our specials ensure precision, extended tool life, and optimised machining performance for aerospace and automotive applications.

Why Choose Exactaform for machining Titanium

With over 45 years of expertise, Exactaform delivers high-performance carbide and HSS cutting tools for titanium machining. Our technical team provides expert advice, ensuring precision, efficiency, and durability in aerospace and automotive titanium applications.

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