期刊
JOURNAL OF APPLIED PHYSICS
卷 118, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4930059
关键词
-
资金
- Russian Foundation of Basic Research [15-02-91347]
- German Federal Ministry of Education and Research BMBF [13N11911]
- Graduate School of Excellence Advanced Manufacturing Engineering GSaME of the University of Stuttgart
The formation of a matrix evaporation zone (MEZ) in carbon fiber reinforced plastics during multi-pass laser cutting with picosecond laser pulses is studied for a wide range of pulse frequencies (f(p) = 10-800 kHz) and feed rates (v(f) = 0.002-10 m/s). Three regimes of the formation of the MEZ are found and related with different heat accumulation effects: (i) small MEZ (<2 mu m) with negligible heat accumulation, (ii) moderate-size MEZ (up to a few hundred microns) determined by heat accumulation between pulses, and (iii) large MEZ (up to a few millimeters) caused by heat accumulation between scans. The dependence of the size of the MEZ on the number of scans and the scan frequency was studied to distinguish the two heat accumulation effects (between pulses and between scans), which occur on different time-scales. A diagram to illustrate the boundaries between the three regimes of the formation of the MEZ as a function of feed rate and pulse frequency is proposed as a promising base for further studies and as a useful tool to optimize the processing parameters in practice. (C) 2015 AIP Publishing LLC.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据