HARD TURNING

Hard Turning with CBN

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 introduces KBN010, KBN015, and KBN020 high-performing CBN grades.

Continuous to Heavily Interrupted Cuts

Kyocera’s KBN015 excels as a 1st choice, general purpose CBN grade with a broad application range from continuous to interrupted machining. KBN010 is recommended for continuous high-speed machining and KBN020 excels in more heavily interrupted cuts. 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.