The newly developed negative inserts utilise two lead angles per corner. Using moulding technology developed by Kyocera, a large axial rake angle is provided on the cutting edges that is said to reduce cutting resistance and facilitate smoother machining. Increasing the lead angle also reduces cutting resistance in the axial direction.
A proprietary, double-edged structure using two main cutting edges is deployed on each corner to cushion initial shock at the moment of workpiece contact. This helps prevent inserts from fracturing.
The substrate is based on CA420M, a material comprising a tough base substrate with a newly developed CVD coating that uses proprietary crystal-control and film-formation technologies.
