KYOCERA Releases KBN015 CBN Grade for Continuous to Interrupted Hard Turning

When turning steel above 45 Rc, it is advantageous to choose a CBN insert grade that can stand up to multiple hard turning operations and produce the finish, stability, and tool life needed to power through a variety of parts. Turning parts that have sections of continuous surfaces mixed with interruptions like automotive suspension, shafts, or gears requires repeatable tooling options that perform well in different situations. To give manufacturers a larger range of hard turning capabilities, Kyocera is introducing the brand new KBN015 CBN grade to broaden its offering of KBN series grades for hardened materials.

Kyocera’s new KBN015 grade expansion is specialized for general purpose hard turning with a large range from continuous to heavy interruption. Previously released KBN010 is built for high-speed finishing and KBN020 excels in heavily interrupted machining.

Utilizing innovative new layering techniques, Kyocera has developed the MEGACOAT TOUGH coating technology. This coating combines a highly wear-resistant layer on the surface adhered to high-content CBN which is used to toughen up the edge for greater fracture resistance when encountering interruptions. The adhesion layer is laminated between the wear-resistance layer and the CBN to reduce layer peeling for longer tool life and stable machining. Providing both excellent wear resistance and fracture resistance gives the user more flexibility, range, performance, and tool life when turning hardened materials.

To take full advantage of Kyocera’s new hard turning technology, it is important to follow the listed speed and feed recommendations to make the most out of your tool life and surface finish.