| 石英玻璃飞秒激光微连接及其接头性能 |
| |
| 引用本文： | 潘泽浩,程战,刘磊,邹贵生,ZHOU Yunhong. 石英玻璃飞秒激光微连接及其接头性能[J]. 焊接学报, 2016, 37(6): 5-8 |
| |
| 作者姓名： | 潘泽浩 程战 刘磊 邹贵生 ZHOU Yunhong |
| |
| 作者单位： | 1.清华大学 机械工程系, 北京 100084 |
| |
| 基金项目： | 国家自然科学基金资助项目(51375261，51405258)；北京市自然科学基金资助项目(3132020)；先进焊接与连接国家重点实验室开放课题(AWJ－M14－05) |
| |
| 摘 要： | 飞秒激光的低热输入、极小热影响区的特点使其在微米尺度材料连接领域有明显的应用潜力。为研究飞秒激光进行玻璃连接的可行性及其接头性能，测定了其接头的拉剪强度并分析了接头断裂前后的形貌特征。证明了飞秒激光连接玻璃的可行性，并发现玻璃试样之间的间隙对飞溅有明显影响。拉剪试验测得的接头强度在6.4~40.4MPa之间。结果表明，在激光平均功率较大，焊缝间距较小的条件下，连接试样容易在母材中断裂，使得接头的强度相比于断裂在界面上的试样强度降低一半以上。
|
| 关 键 词： | 飞秒激光 微连接 石英玻璃 |
| 收稿时间： | 2014-09-16 |
Microwelding of fused silica by femtosecond laser and the joint mechanical properties |
| |
| PAN Zehao,CHENG Zhan,LIU Lei,ZOU Guisheng and ZHOU Yunhong. Microwelding of fused silica by femtosecond laser and the joint mechanical properties[J]. Transactions of The China Welding Institution, 2016, 37(6): 5-8 |
| |
| Authors: | PAN Zehao CHENG Zhan LIU Lei ZOU Guisheng ZHOU Yunhong |
| |
| Affiliation: | 1.Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China2.Department of Materials Processing Engineering, School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
| |
| Abstract: | Femtosecond laser is a promising tool for micro/nano joining due to its low heat input and small heat affected zone. In this paper, fused silica was welded by using femtosecond laser. The shear strength and failure modes of the joints were investigated and the joint formation was studied. The shear strengths of the glass joint were between 6.4 MPa and 40.4 MPa, depending on the welding parameters. It was found that the gap of the faying surfaces between the two glasses had significantly effect on splashing, which would lower the joint strength. The results also indicated that high average power of laser and small distance between two weld seams tended to induce cracks in the glass, which were crack initiation sites during shear test and reduced the joint strength by half, compared with the joints with no cracks. |
| |
| Keywords: | femtosecond laser microwelding fused silica |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《焊接学报》浏览原始摘要信息 |
|
点击此处可从《焊接学报》下载免费的PDF全文 |
|
