Insert milling – finishing – of a 62 HRC steel

Finding the right coating for an OEM customer machining 1.2379 steel with an HRC of 62. The cutting speed of the process is 160 m per minute. Cutting length is 141 m. Other process parameters: feed per tooth is 0.25 mm, axial depth is 0.22 mm and radial depth is 0.3 mm.

Problems encountered:

Recommendation is a coating with:

  • Plastic deformation consequently of high temperatures
  • High hardness
  • Abrasive wear
  • High temperature resistance
  • Cutting edge chipping

Our recommondation

Hardcut Plus, a TiSiN based multi-layer coating, was developed for high speed end-milling and gear hobbing of the hardest and toughest materials under low lubrication and dry conditions.

Hardcut Plus