期刊
OPTICS AND LASER TECHNOLOGY
卷 143, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2021.107365
关键词
Laser cutting; Polycarbonate film; Laser ablation; Precision manufacturing
资金
- National Natural Science Foundation of China [52005206, 51905191]
- China Postdoctoral Science Foundation [2020TQ0110]
- Ministry of Industry and Information Technology's special project for high-quality development of manufacturing industry [TC200H02H]
- National Key R&D Program of China [2020YFB2007600]
- Key Research & Development Plan of Hubei Province [2020BAB051]
- Guangdong HUST Industrial Tech-nology Research Institute, Guangdong Provincial Key Laboratory of Manufacturing Equipment Digitization [2020B1212060014]
- Guangdong Basic and Applied Basic Research Foundation [2020A1515011393]
The study focused on the UV nanosecond laser cutting of PC films, evaluating the cutting mechanism and analyzing the influence of process parameters on cutting quality through orthogonal experiments. The optimal parameter combination resulted in smaller cutting seam width and heat-affected zone width without obvious seam taper.
With the refinement of polycarbonate (PC) film application, higher demands are placed on shape, dimensional accuracy, and cross-sectional quality of PC film. Ultraviolet (UV) nanosecond laser is one of the feasible methods for patterned precision cutting of PC films, but the cutting mechanism and the influence of process parameters on cutting quality have not deeply researched. Using UV nanosecond laser with maximum power of 3 W and 0.2 mm thick PC film, on the one hand, laser cutting mechanism was evaluated based on by-product composition analysis, and laser ablation in process path is the principle of UV-nanosecond laser cutting of PC film. On the other hand, influence of laser cutting process on cutting quality was analyzed by orthogonal experiments. When parameter combination was 0.1 W-40 mm/s-15 (laser power -cutting speed -number of cuts), a smaller cutting seam width (40.7 +/- 1.2 mu m) and heat-affected zone width (26.8 +/- 0.8 mu m) were obtained, and there was no obvious seam taper.
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