南京理工大学学报（自然科学版）2011，Vol.35Issue(3)：415-421,7.
工程陶瓷用孕镶金刚石钻头的性能优化
Performance Optimization of Diamond-impregnated Bit for Engineering Ceramic
摘要
Abstract
To improve the drilling efficiency and tool life of diamond-impregnated bits on its drilling of holes in engineering ceramic, this paper studies the bit performance optimally. The wear mechanism of diamond-impregnated bits on its drilling of holes in alumina engineering ceramic is analyzed. With higher quality diamond grains as well as new matrix composition and manufacturing technology being used, four kinds of bits are produced. Drilling tests and scanning electron microscope analysis show:higher quality diamond grains can increase the proportion of working grains and enhance the drilling performance; the four kinds of bits perform different worn performances, the bit with matrix composition of Cu5OCo25Sn18Ti7 (wt％)shows the higher diamond protrusive heights and higher diamond retention to the matrix, the matching performances of the wearing rates of diamond grains and matrix are good, the comprehensive drilling performance of the bit is the best,and the drilling efficiency and tool life are improved about 1.4 and 7 times than others.关键词
工程陶瓷/孕镶金刚石钻头/胎体配方/工具寿命/效率Key words
engineering ceramics/ diamond-impregnated bits/ matrix composition/ tool life/ efficiency分类
通用工业技术引用本文复制引用
高超,袁军堂,金浩,宋中权..工程陶瓷用孕镶金刚石钻头的性能优化[J].南京理工大学学报（自然科学版）,2011,35(3):415-421,7.基金项目
国家部委基金 （）
