论文部分内容阅读
今天,一种新的复合刀具材料已经出现。这种材料的韧性和硬度要比硬质合金和陶瓷高得多。这种材料就是众所周知的“Amborite”,制造这种刀具材料采用仔细分级的优质琥珀氮化硼微粒,经高温、高压作用在金属参于下形成陶瓷粘结相。 这种材料的硬度仅稍低于多晶金刚石,又具有良好的红硬性。Amborite的这些特性使它成了各种机械加工的理想刀具材料。如车削淬硬的冷轧钢,淬硬的高速钢和冷硬铸铁。这些被加工材料的代表性硬度在HRc50～65之间。
Today, a new composite tool material has emerged. The toughness and hardness of this material than cemented carbide and ceramics is much higher. This material is known as “Amborite,” and is made of carefully graded, high-quality, fine-grained boron nitride particles that form a ceramic binder under the influence of heat and pressure. The hardness of this material is only slightly lower than the polycrystalline diamond, but also has good red hardness. These features of Amborite make it an ideal tool for a wide range of machining applications. Such as turning hardened cold-rolled steel, hardened high-speed steel and chilled cast iron. The hardness of these processed materials is between HRc50 and 65.