AiVibeCutting Tool Materials
Cutting tool materials range from high-speed steel and cemented carbide to cermets, ceramics, cubic boron nitride (CBN) and polycrystalline diamond (PCD), each balancing hardness and wear resistance against toughness.
High-speed steel (HSS) is tough and easy to grind but loses hardness at high temperatures. Cemented carbide, tungsten carbide grains bonded with cobalt, is the most common material for inserts and solid tools, usually with CVD or PVD coatings such as titanium nitride, titanium aluminium nitride or aluminium oxide that improve wear and heat resistance. Cermets, ceramics, CBN and PCD are progressively harder and more wear-resistant but generally less tough.
Selection depends on the workpiece material and operation. ISO 513 classifies hard cutting materials by application groups: P for steel, M for stainless steel, K for cast iron, N for non-ferrous metals, S for heat-resistant alloys and titanium, and H for hardened materials. CBN is widely used for hardened steels and some cast irons, while PCD suits aluminium alloys, composites and other non-ferrous materials.
Harder materials allow higher cutting speeds but are more prone to chipping under interrupted cuts or vibration, so rigid setups matter. PCD is generally unsuitable for machining ferrous materials because carbon diffuses into iron at cutting temperatures. Tool suppliers publish grade recommendations and starting cutting data for each application group.
Key points
- Main materials: HSS, carbide, cermet, ceramic, CBN and PCD
- Coated cemented carbide is the most common insert material
- ISO 513 groups applications as P, M, K, N, S and H
- Harder materials resist wear but are less tough
Where AiVibe comes in
AiVibe designs and manufactures the AiAmbA AI Factory: edge devices plus AI agents that let people talk to CNC, PLC and robot controllers in plain language. Agents only propose changes, and a trained operator confirms each one.
Related terms
- Indexable InsertCNC & Precision Machining
- Tool WearCNC & Precision Machining
- Tool Life (Taylor's Equation)CNC & Precision Machining
- Cutting Speed (Surface Speed, Vc)CNC & Precision Machining
- Built-Up Edge (BUE)CNC & Precision Machining