南京航空航天大学学报（英文版）2007，Vol.24Issue(2)：89-93,5.
DLC涂层硬质合金微钻的制备及其切削性能
FABRICATION OF DLC COATED COBALT-CEMENTED TUNGSTEN CARBIDE MICRO-DRILLS AND THEIR CUTTING PERFORMANCE
摘要
Abstract
In machining the particle reinforced aluminum based composite material with high Si content using the cobalt-cemented tungsten carbide micro cutting tools, diamond like carbon (DLC) films are deposited on cobalt-cemented tungsten carbide micro-drills with two-step pretreatment method. Characteristics of DLC coated tools are investigated in bias-enhanced HFCVD system with the optimized hot filament arrangement. The optimization deposition technology is obtained and the wear mechanism of cutting tools is analyzed. The drilling performance of DLC coated tools is verified by the experiments of cutting particle reinforced aluminum based composite material (Si 15% in volume) compared with uncoated ones. Experimental results show that the two-step pretreatment method is appropriate for complex shaped cemented carbide substrates and ensures the good adhesive strength between the diamond film and the substrate. The cutting performance of DLC coated tool is enhanced 10 times when machining the Si particle reinforced aluminum based metal matrix composite compared with that of uncoated ones under the same cutting conditions.关键词
DLC涂层/偏压增强HFCVD/硬质合金切削刀具/微钻削/切削性能Key words
DLC film/bias-enhanced HFCVD/cobalt-cemented tungsten carbide cutting tool/micro-drilling/cutting performance分类
通用工业技术引用本文复制引用
马玉平,陈明,向道辉,孙方宏..DLC涂层硬质合金微钻的制备及其切削性能[J].南京航空航天大学学报（英文版）,2007,24(2):89-93,5.基金项目
国家自然科学基金(50475026,50275095,50575135)资助项目 （50475026,50275095,50575135）
航空基础科学基金(04H57001)资助项目 （04H57001）
教育部新世纪杰出人才基金(NCET-04-0384)资助项目.Supported by the National Natural Science Foundation of China(50475026, 50275095, 50575135) （NCET-04-0384）
the Aviation Fundamental Science Foundation of China (04H57001) （04H57001）
the New Century Excellent Talent Project (NCET-04-00384). （NCET-04-00384）
