Characteristics of ceramic blade material types
The characteristics of ceramic tools:
1. Good abrasion Resistance:
2, high temperature, red hard and good;
3, tool durability than traditional tool high several times or even dozens of times times, reducing the number of knives in the processing, to ensure that the workpiece is processed small taper and high-precision;
4, not only to the high hardness of coarse materials, finishing, but also can be milling, planing, intermittent cutting, such as the impact of a large processing
5, ceramic blade cutting and metal friction is small, cutting is not easy to adhere to the blade, not easy to produce cuttings, plus can be used for high-speed cutting Ceramic blades and hard rolling alloy blades can withstand a temperature of 2000 degrees Celsius, and cemented carbide at 800 degrees Celsius is soft; so the ceramic tool has high temperature chemical stability, can be high speed cutting, but its disadvantage is that the strength and toughness of ceramic blades is very low, easy to break. After the introduction of silicon nitride ceramic, mainly used in turning, milling, boring superhard materials. Cubic boron nitride tool hardness than ceramic blades much higher, due to high hardness, and diamond and called superhard materials, commonly used to process hardness higher than HRC48 material, it has excellent high-temperature hardness, up to 2000 degrees Celsius, although more brittle than carbide blades, but compared with alumina ceramic cutter, The impact strength and breaking resistance are obviously improved. In addition, some special cubic nitrogen boron cutters can withstand the chip load of Dayu roughing and can withstand the impact of discontinuous cutting and the wear and cutting heat during finishing. These characteristics can meet the use of cubic boron nitride tool processing hardened steel and high hardness cast iron and other refractory materials.