Research on the Metal Ablation Thresholds of Picosecond Laser

摘要：

　　Detailed studies on the ablation threshold of Mo with picosecond laser pulses are reported in this paper.The laser pulses used for the research were 1064 nm in wave length and 15 ps in pulse duration.Scanning electronic microscope (SEM) and optical surface analyzer were used to analyze the ablation sample, and by analyzing the linear relationship between the squared diameter of ablation crater and pulses energy we obtained the ablation threshold of Mo with single-and multi-pulses.Influence factors of ablation threshold were observed while analyzing machining process.Finally, the shape and topography of holes drilled by percussion with ablation regularity in Mo were studied, which provided an important guidance for the following applications on picosecond micro-machining.

关键词： Micro-machining Ablation thresholds Metals materials Picosecond laser

作者: Jinpeng Duan Meng Chen Zhenxu Bai Gang Li

作者单位: Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,PR China

会议类型: 国际会议

会议名称: the 3nd International Conference on Digital Manufacturing & Automation (第三届数字制造与自动化国际会议(ICDMA 2012))

会议地点: 桂林

会议语种:英文

页码: 547-550

在线出版日期: 2012-08-01（万方平台首次上网日期，不代表论文的发表时间）