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论文类型：期刊论文

发表时间：2014-01-01

发表刊物：Zhongguo Jiguang/Chinese Journal of Lasers

收录刊物：EI、PKU、ISTIC

卷号：41

期号：1

ISSN号：02587025

摘要：To understand the material removal mechanism better in laser cutting, the shape and characteristic parameter distribution of removal melt particles are obtained through image processing with imagine-pro plus (IPP) software. Laser cutting of 1000 series aluminum alloy sheets with thickness of 0.85 mm, is carried out based on the vapour-melt ratio controlled. The removal melt particles are classified three kinds of shape through the metric rule, including the rounded particle, the quasi-rounded particle and the tadpole-shape particle. The results show the percentage of rounded particles increases in removal melt particles with vapour-melt ratio increasing, but the percentage of quasi-rounded and tadpole-shape decreases, and the average size of particles reduces with vapour-melt ratio increasing. Also the cutting quality improves with the increase of vapour-melt ratio in test. A removal model is established, which indicates that the cutting quality has a significant relationship with removal melt. Finally the high quality cutting and the slot array antenna sheet are obtained.