摘要
为研究激光扫描角度对碳纤维复合材料的热影响作用和扫描角度对激光能量在材料内部传递过程的影响,以常用的纤维铺设角度即0°、45°和90°作为激光扫描角度,进行了有限元模拟和试验验证。结果表明,随扫描角度的增大,激光对材料的热影响范围逐渐增大;当扫描角度为45°时,切缝两侧纤维碳化较为严重。通过激光切割试验验证,发现模拟与试验存在误差为7.46%,模拟与试验所呈现出扫描角度对材料的热影响趋势,以及扫描角度对纤维造成碳化的结果特征具有一致性。为降低激光切割对材料的热影响,减小材料的碳化区域,改善材料的激光切割质量,除选用合适的激光参量外,应尽可能的使激光扫描角度与纤维轴向一致。
In order to study the thermal effect of laser scanning angle on carbon fiber reinforced plastics and the influence of scanning angle on the laser energy transfer process inside the material,the common fiber laying angles 0°,45°and 90°were used as the laser scanning angles to carry out finite element simulation and experimental verification.The results show that with the increase of scanning angle,the thermal influence range of laser on material gradually increases;when the scanning angle is 45°,the carbonization of fibers on both sides of the slit is more serious.Through the laser cutting experiment,it is found that the error between the simulation and the experiment is 7.46%.The simulation and experiment show that the scanning angle has a trend of thermal influence on material,and the scanning angle has a consistent result on the carbonization of the fiber.In order to reduce the thermal effect of laser cutting on materials and the carbonization area of materials,and improve the laser cutting quality of materials,in addition to selecting appropriate laser parameters,the laser scanning angle should be consistent with the fiber axis as much as possible.
作者
侯红玲
吕瑞虎
郝海凌
吴浪
HOU Hong-ling;LV Rui-hu;HAO Hai-ling;WU Lang(School of Mechanical Engineering,Shaanxi University of Technology,Hanzhong 723000,China;Shaanxi Key Laboratory of Industrial Automation,Hanzhong 723001,China)
出处
《激光与红外》
CAS
CSCD
北大核心
2021年第12期1563-1569,共7页
Laser & Infrared
基金
陕西省自然科学基础研究计划项目(No.2019JM-466)
陕西省教育厅专项科研计划项目(No.18JK0148)资助。
关键词
激光切割
碳纤维复合材料
扫描角度
热影响
激光能量
laser cutting
carbon fiber reinforced plastics
laser scanning angle
thermal effect
laser energy
作者简介
侯红玲(1976-),女,副教授,硕士生导师,主要研究方向为精密加工技术及数控技术。E-mail:xjtuhhl@163.com。
