摘要
介绍了PcBN材料及其刀具的发展史,给出了制备PcBN的工艺流程及关键技术。通过大量实验数据总结出,作为合成PcBN的基本原料,cBN具有高的硬度和化学惰性。但高的化学惰性阻碍了晶格间的良好烧结,即cBN与cBN晶粒直接键合是十分困难的。分析了不同结合剂对制备PcBN的影响,介绍了金属结合剂及陶瓷结合剂对PcBN性能的影响,如:Al、B、AlN、TiN和WC等。最后对PcBN材料的发展作了展望。
The development status of materials and cutting tools of PcBN were briefly introduced, and the preparation PcBN process and the key technologies were given. Summed up by a large number of experimental data, as synthetic PcBN of basic raw materials, cBN has high hardness and chemical inertness. But high chemical inertness hinders the good sintering between the lattices, cBN and cBN grain direct bonding is very difficult. To solve the problems, the influences of different hinders on the preparation of PcBN were analyzed, the metal-binding agents and ceramic-binding agents of PcBN performance were introduced, such as： A1, B, A1N and TiN, WC, etc. Finally, the development of PcBN materials in the future was prospected.
出处
《热加工工艺》
CSCD
北大核心
2012年第24期13-16,共4页
Hot Working Technology
基金
河南省重点技攻关资助项目(112102210267)
郑州市科技攻关资助项目(0910GYG23259-2)
关键词
CBN
结合剂
PCBN
陶瓷
cubic boron nitride
binder
polycrystalline cubic boron nitride
ceramic
