Effect of infrared laser surface treatment on the microstructure and properties of adhesively CFRP bonded joints
Effect of infrared laser surface treatment on the microstructure and properties of adhesively CFRP bonded joints
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DOI：
10.1016/j.optlastec.2018.04.023
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发表时间：
2018-10
影响因子：
5
通讯作者：
X. Zhan;Y. Li;Chuanyu Gao;Hongen Wang;Yang Yang-Yang
中科院分区：
文献类型：
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作者：
X. Zhan;Y. Li;Chuanyu Gao;Hongen Wang;Yang Yang-Yang
粘合剂被认为比飞机复合结构的连接具有优势。本研究进行了各种激光工艺参数的红外激光表面加工和剥离层处理。为了研究红外激光表面处理和剥离层加工获得的粘合复合材料单搭接接头的显微组织和性能，对接头的显微组织、表面自由能和剪切强度进行了测试。结果表明，红外激光处理后的粘接接头平均剪切强度较低，为20.158MPa，而剥离层处理后的接头平均剪切强度为32.574MPa。另外，进行表面粗糙度测试，剥离层处理后的试件表面粗糙度为4.926μm，高于红外激光处理后的试件。
Adhesive bonding is considered to offer advantages over the connections of the aircraft composite structures. The infrared laser surface processing of various laser process parameters and peel ply treatment are performed in this study. To investigate the microstructure and properties of adhesively bonded composite single-lap joints obtained by infrared laser surface treatment and peel ply processing, the examinations of microstructures, surface free energy and shear strength of the joints are conducted. The results indicate that the adhesively bonded joints acquired by infrared laser treatment have lower average shear strength of 20.158 MPa, comparing with the joints of 32.574 MPa in average shear strength treated by peel ply processing. In addition, the surface roughness test is conducted and the surface roughness of 4.926 μm of the specimen after peel ply treatment is higher than that of the specimen after infrared laser treatment.