The study of high speed micro-drilling performance and machining quality of coated micro-drills with Zr-C:H coatings

W. H. Kao, Y. L. Su, S. H. Yao, H. C. Huang, M. S. Chen

研究成果: Conference contribution

3 引文 斯高帕斯(Scopus)

摘要

The Zr-C:H coatings with various C2H2 flow rate were deposited on micro-drills (a diameter of 0.2 mm) used a closed field unbalanced magnetron sputtering system. The ultrahigh speed (drilling speed of 160000 rpm) through-hole drilling printed circuit board tests used to evaluate the drilling performance of the coated micro-drills. The rejection criteria of service lives of the coated micro-drills were evaluated using two different criteria: (1) a nail head ratio greater than 1.5; (2) a drilled hole surface roughness greater than 25.4 μm. Adopting a service life criterion of a nail head ratio of 1.5, the Zr-C:H-5 coating possesses the optimal high-speed machining performance, which yields a micro-drill lifetime of above 6000 drilled holes. It represents a three-fold improvement on that of an uncoated micro-drill and it also improves machining quality.

原文English
主出版物標題Manufacturing Engineering and Automation II
頁面342-346
頁數5
DOIs
出版狀態Published - 2012
事件2012 International Conference on Manufacturing Engineering and Automation, ICMEA 2012 - Guangzhou, China
持續時間: 2012 11月 162012 11月 18

出版系列

名字Advanced Materials Research
591-593
ISSN(列印)1022-6680

Other

Other2012 International Conference on Manufacturing Engineering and Automation, ICMEA 2012
國家/地區China
城市Guangzhou
期間12-11-1612-11-18

All Science Journal Classification (ASJC) codes

  • 一般工程

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