New CVD coated carbide grades

Kyocera Corporation has introduced two chemical vapor deposition (CVD) coating materials for turning insert grades used in automotive and industrial steel machining.

According to the company, the new CA115P and CA125P coatings have improved wear and fracture resistance and achieve a high level of uniformity in alumina crystal orientation. They also have a titanium carbon nitride layer and a new carbide substrate with greater high-temperature strength, Kyocera said.

CA125P grades can be used in a wide range of machining conditions, from continuous to heavy interrupted machining.

The company has also launches a chipbreaker, i.e. a groove or protrusion in the rake face of a tool insert to divide and control chips generated when turning.