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.

The third letter indicates the accuracy grade of the carbide tool inserts. The most commonly used are grade m and grade g. generally, the rough machining and semi finishing finishing blades are grade m, and the precision machining blades and superhard blades are generally grade G.

There are 6 numbers in total, which are divided into three groups. The first group represents the tungsten inserts edge length, the second group represents the blade thickness, and the third group represents the arc radius of the blade tip.

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The second letter obviously represents the blade rear angle. The commonly used letters are usually a, B, C, D, E, F, G and O. a represents the rear angle of 3 °, B is 5 °, C is 7 °, D is 15 °, E is 20 °, F is 25 °, G is 30 °, N is 0 °, P is 11 °, and O represents other rear angles.

While KBN020, released in early 2023, excels as a 1st choice for general purpose continuous to heavily interrupted machining, Kyocera’s new KBN010 grade expansion is specialized for high-speed finishing. The unique, mixed structure of micro grain and coarse grain CBN provides greater wear resistance and optimal surface finish at higher speeds compared to KBN020.

The following letters indicate the material of carbide cutter. There are many materials of carbide inserts, and the products produced from different materials will naturally be different. Therefore, when purchasing NC blades, we must pay attention to the material of blades, and the prices of different materials are completely different.

Generally, the carbide cutter inserts model is represented by 10 numbers. In this model, the first four letters represent the characteristics of the lathe inserts, and the next six numbers represent the size and model characteristics of the carbide cutter.

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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 KBN010 high-speed CBN grade to broaden its offering of KBN series grades.

DNMG150408-MS is a turning tool inserts. D represents 55°diamond blade, N represents 0°rear angle of blade, M represents accuracy grade of blade manufacturing, G represents front edge surface and central hole type, 15 represents cutting edge length, value is 15mm, 04 represents blade thickness of 4.76mm, and 08 represents arc radius of tool tip of 0.8mm.

Generally, it is represented by two letters, mostly alloy, P represents general steel, M represents stainless steel, K represents gray cast iron or nodular cast iron, N represents aluminum / scrap metal, S represents heat-resistant alloy or titanium alloy, H represents high hardness material, etc.

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.

There are many CNC carbide inserts of various shapes, uses and materials. First, let's understand the classification of cemented carbide insert turning tools.

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The first letter generally indicates the shape of CNC inserts. The commonly used ones are H, O, P, S, T, C, D and E, which are regular hexagon, regular octagon, regular pentagon, square, diamond 80 degree top angle, diamond 55 degree top angle and diamond 75 degree top angle respectively.