Heat-resistant and titanium

How to use the tool

Select material, operation, tool and coolant type - these are common to all three modes.

Selection—checks the compatibility of parameters and issues a risk checklist.

Modes - enter Ø and number of teeth, select aggressiveness level → starting Vc, RPM, feed and thermal risk.

Diagnostics—click on a symptom, get the cause and a specific solution for your material.

Why ISO S is the most difficult group

Nickel (Inconel, Hastelloy), cobalt (Waspaloy), iron heat-resistant (Duplex, PH 17-4) and titanium alloys are combined in ISO S for a reason. Their common features are: low thermal conductivity, work hardening and high strength at temperature.

Three rules that are more important than any number:

1. Do not stop cutting. Stopping the feed means instant hardening of the surface. The tool no longer cuts, but rubs - it wears out in seconds.
2. Control heat.HPC (≥ 70 bar, internal cooling) reduces the temperature in the cutting zone by 200–400°C compared to flood.
3. Sharp geometry. Blunt edge = build-up, hardening, deformation. Change plates before, not after, problems occur.

Important: Ceramics are strictly prohibited for titanium - a chemical reaction leads to fire.

Critical warnings

Titanium + dry processing = fire. Ti burns at temperatures above 550°C. Small chips ignite. HPC or Flood is required.

Inconel + ap < 0.05 mm = hardened layer. The surface has already been hardened by the previous pass - the cutting depth should be greater than the thickness of the hardened layer.

Notch wear is the main type of wear in ISO S. Use ramping (variable depth ±0.1–0.2 mm) or round plates.

Frequently Asked Questions

Is it possible to process Inconel with MQL instead of HPC? Only acceptable for light operations and low Vc. When roughing - only HPC or flood under pressure.

Why can't TiN coating be used on Inconel tools? Nickel chemically adheres to TiN → build-up. AlTiN, AlCrN or uncoated submicron hard alloy are preferred.

Selection of tools for heat-resistant alloys and titanium - call our technologists.