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脉冲激光烧蚀CFRP材料工艺优化

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为了研究20 W纳秒激光对碳纤维复合材料(CFRP)烧蚀的工艺质量,采用单因素实验方法及光切法进行了理论分析和实验验证,得到了扫描速率、峰值功率、离焦量对材料表面加工质量的影响规律,并对0.5 mm CFRP材料板进行了烧蚀实验.结果表明,调整激光器的离焦量,让激光的焦点与材料平面在同一高度,可使扫描线宽最小,减少了材料烧蚀的热影响区,提高了激光能量利用率;设定激光扫描速率为220 mm/s和峰值功率为10 W,可得到大小为3.50 μm的CFRP最小表面粗糙度平均值,其中粗糙度数据稳定性样本方差最佳,约为0.133 μm2,在此条件下可得到良好的加工表现.此研究为脉冲激光加工CFRP材料工艺研究提供一定参考,并为脉冲激光加工复合材料工艺应用打下了一定的实践基础.
Pulsed laser ablation CFRP material process optimization
In order to study the ablation quality process of carbon fiber reinforced plastics(CFRP)with 20 W nanosecond laser,theoretical analysis and experimental verification were carried out by the single-factor experimental method and photo-section method.Effects of scanning speed,peak power,and defocus amount on the surface processing quality of the material were studied.A piece of 0.5 mm thick CFRP was ablated in experiments.The results show that adjusting the defocusing amount made the focus of the laser and the material plane at the same horizontal height,which could minimize the scanning line width,reduce the heat-affected zone and improve the laser energy utilization.When the laser scanning speed is 220 mm/s and,the peak laser power is 10 W,the average surface roughness of CFRP composite is the smallest.About 3.50 μm,and the roughness data stability sample difference is the best,about 0.133 μm2;the laser process parameter combination method ablation CFRP composite materials can obtain ideal processing performance.The above research for pulsed laser processing CFRP material process research provides some references and lays a certain practical foundation for the application of pulsed laser processing composite material process.

laser techniquecarbon fiber reinforced plasticspulsed laserlaser ablationprocessing technique

蔡颂、宋金潮、王遥遥、陈达、邓凯、汤迎红、李琦

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武昌工学院智能制造学院,武汉 430065,中国

湖南工业大学机械工程学院,株州 412007,中国

激光技术 碳纤维复合材料 脉冲激光 激光烧蚀 加工工艺

国家自然科学基金资助项目国家自然科学基金资助项目湖南省教育厅科学研究项目湖北省高等学校优秀中青年科技创新团队科研基金资助项目中国博士后科学基金资助项目湖北省高等学校优势特色学科(群)建设项目

517051415197519221B052320200422019T120650

2024

10.7510/jgjs.issn.1001-3806.2024.01.014

激光技术
西南技术物理研究所

激光技术

CSTPCD北大核心
影响因子：0.786
ISSN：1001-3806
年,卷(期)：2024.(1)
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