期刊
OPTICS AND LASERS IN ENGINEERING
卷 93, 期 -, 页码 178-181出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2017.02.006
关键词
Ultrashort pulse; Femtosecond laser; Laser welding; Cyclo-olefin copolymers; Transparent polymers; Laser bonding
类别
We report on the joining of transparent thermoplastic polymers using infrared femtosecond laser pulses. Due to nonlinear absorption, the developed micro -welding process for cyclo-olefin copolymers does not require any intermediate absorbing layers or any surface pre-processing of the welding partners. In view of an optimized and stable micro -welding process, the influence of the welding speed and focal position on both, the quality and shear force strength are investigated. We highlight that welding seam widths of down to 65 pm are feasible for welding speeds of up to 75 mm/s. However, a variation of the welding speed affects the required focal position for a successful joining process. The shear force strength of the welding seam is determined to 37 MPa, which corresponds to 64% of the shear strength of the bulk material and is not affected by the welding speed.
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