BeginnerTopic 22 of 102Manufacturing, Robotics & Systems

Cutting tool materials

HSS, carbide and ceramics resist wear at different speeds.

In depth

HSS (tough), cemented carbide (WC-Co, most common), coated carbide (TiN, TiAlN), ceramics (Al₂O₃, Si₃N₄), CBN and PCD offer rising hardness and speed capability but decreasing toughness. Choose by workpiece, interruptions and cost per part.

Key points

  • Hot hardness
  • Coating layers
  • Insert geometry
Example

Coated carbide inserts machine steel at 200 m/min.

Why it matters

Cutting tool materials determine how fast and how long a tool can cut, so choosing the right material raises productivity.

Where this is used

  • Choosing carbide inserts for high-speed machining of steel.
  • Using high speed steel drills for small batch work in a workshop.
  • Selecting a ceramic tool for finishing a hard alloy at high speed.

Frequently asked questions

What is Cutting tool materials?

HSS, carbide and ceramics resist wear at different speeds.

Why is it important to understand cutting tool materials?

Cutting tool materials determine how fast and how long a tool can cut, so choosing the right material raises productivity.

What is high speed steel?

A tool steel that keeps its hardness at higher temperature than carbon steel, which suits drills and small cutters.

Why are carbide tools common?

Carbide keeps its hardness at high temperature and cuts faster than high speed steel, which increases productivity.

How is Cutting tool materials used in practice?

Typical applications include choosing carbide inserts for high-speed machining of steel, using high speed steel drills for small batch work in a workshop and selecting a ceramic tool for finishing a hard alloy at high speed.

What should I learn before Cutting tool materials?

Study "Grinding and finishing" first (topic 21 of 102 in Manufacturing, Robotics & Systems). It covers the groundwork this topic builds on.

What are the key points of Cutting tool materials?

Hot hardness. Coating layers. Insert geometry.

Can you give an example of Cutting tool materials?

Coated carbide inserts machine steel at 200 m/min.

What comes after Cutting tool materials?

The next topic is "Tool life and Taylor equation", which builds directly on this one.

How difficult is Cutting tool materials?

It is classed as Beginner in Manufacturing, Robotics & Systems (topic 22 of 102). It is an entry-level topic. It relies only on basic school mathematics and the ideas introduced earlier in this discipline.

Learning path

Want to practise? Open the interactive course for quick checks, quizzes, simulations and progress tracking.

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