Because of its high strength and light weight, titanium is a favorite of the automotive, medical and micro-component industries. The same qualities that make titanium appealing for many applications, also make it one of the most difficult materials to machine.
Titanium is a poor conductor so heat generated during cutting doesn’t dissipate through the part or machine structure but instead concentrates in the cutting area. The high temperatures can lead to cutting edge chipping and deformation.
Our recommendation for cutting titanium: use a 4 or 5 flute variable flute pattern 38 degree helix tool with a Nanotek coating. This type of tool will resist chipping and reduce chatter while the coating’s protection actually increases as the heat increases.