The DNGN series CBN blade has a 55 ° diamond shape and is generally made of polycrystalline cubic boron nitride material. There are three better grades: BTS2800 BTS7600、BTS7800， Made by high-pressure and high-temperature synthesis using a six sided hydraulic press, it has high wear resistance, impact resistance, and chemical stability after synthesis. CBN blades are commonly used for cutting hardened steel, chilled cast iron, and surface thermal spraying materials. When processing materials with medium hardness, the excellent cutting performance of CBN blades is often not well demonstrated. When processing workpieces with HRC45 or higher, the tool exhibits extremely superior superhard performance. Its lifespan is more than 10 times longer than that of hard alloy cutting tools.
The main processing materials for CBN car blades include various cast iron, quenched steel, ductile iron, chilled cast iron, high chromium cast iron, high manganese steel, high-temperature hard alloys, powder metallurgy, alloy steel, tool steel, mold steel and other difficult to machine metal materials. The fields of processed workpieces include quenched bearing steel, rolling mills, brake discs, slurry pumps, quenched gears, ball screws, and various difficult to machine high hardness workpieces with a Rockwell hardness between HRC45-70 using high-temperature alloys.
CBN blades belong to the category of superhard precision machining blades, which have high wear resistance and good precision machining surface effect. The surface smoothness can reach Ra0.8, replacing grinding with turning, greatly improving production efficiency and reducing production costs. They are widely used in the fields of medical equipment, automotive components, and aerospace processing.
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