Dry continuous turning of a gray cast iron

For an OEM customer looking to machine gray cast iron (GG250) with CNMG 120408 inserts, we are looking for the best coating. The dry continuous turning process has a cutting speed of 400 m per minute, a feed of 0.35 mm per revolution and an axial depth of 2.0 mm. The main issue with gray cast iron is its low impact strength, leading to brittle behavior and abrasive wear. In most other respects, machinability is very good.

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Coating challenge

Problems encountered:

  • Only abrasive wear

Coating requirements:

  • High hardness
  • High thickness

Our coating recommendation

Cutting Tools
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Ionbond™ CVD 29 HSA Plus

Ionbond™ CVD 29 HSA Plus is exceptionally well-suited for high-volume machining of cast iron and cast steel at medium to high cutting speeds and high temperatures due to the thermo-dynamically stable…

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Get in touch

Discuss your challenges with Kalpak Shaha

Dr. Kalpak Shaha, Global Segment Manager Cutting Tools, will be glad to support you.

We will get back to you as soon as possible

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Dr. Kalpak Shaha

Global Segment Manager Cutting Tools