中国激光, 2020, 47 (5): 0500012, 网络出版: 2020-05-12   

光纤激光器在金属增材制造中的应用进展及展望 下载: 1929次特邀综述

Application Progress and Prospect of Fiber Laser in Metal Additive Manufacturing
作者单位
华南理工大学机械与汽车工程学院, 广东 广州 510641
摘要
光纤激光器具有光电转换效率高、以柔性介质传输激光、输出功率高、光束质量好、紧凑性和可靠性高等优点,适合用作粉末床熔融和定向能量沉积这两种金属增材制造技术的热源。综述了上述两种增材制造技术中光纤激光器热源的应用情况,包括光纤激光器的类型、输出功率、工作模式等,并分别阐述了以光纤激光器作为热源的上述两种增材制造技术成形典型金属材料的研究现状。粉末床熔融和定向能量沉积成形件的致密度、力学性能均超过了传统铸件,且接近锻件水平。最后对光纤激光器增材制造工艺的研究方向进行了展望,并结合两种金属增材制造技术的发展需求,对光纤激光器的发展进行了展望。
Abstract
Fiber lasers have the advantages of high photoelectric conversion efficiency, transmitting laser with flexible medium, high power output, high beam quality, high compactedness and reliability. They are especially suitable as heat sources for two types of metal additive manufacturing technologies: powder bed fusion (PBF) and directed energy deposition (DED). This paper reviews the types, output power, and operating modes of fiber laser heat sources in those two additive manufacturing technologies, and the PBF and DED research status of fabricating typical metal materials. The relative density and mechanical properties of specimen manufactured by PBF and DED are higher than that of traditional casting and close to the level of forging. Finally, the research direction of fiber laser additive manufacturing technology is prospected, and the development trend of fiber laser is prospected according to the demand from those two kinds of metal additive manufacturing technology.

杨永强, 吴世彪, 张越, 朱勇强. 光纤激光器在金属增材制造中的应用进展及展望[J]. 中国激光, 2020, 47(5): 0500012. Yongqiang Yang, Shibiao Wu, Yue Zhang, Yongqiang Zhu. Application Progress and Prospect of Fiber Laser in Metal Additive Manufacturing[J]. Chinese Journal of Lasers, 2020, 47(5): 0500012.

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