Drilling of compacted graphite iron (CGI)

CGI is a material that can meet the increasing demands for high strength and reduced weight while still retaining reasonable machinability.

Problems encountered:

Recommendation is a coating with:

  • Heat generated during machining
  • High temperature resistance
  • Higher cutting forces than in cutting of gray cast iron
  • Relatively sharp edges

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