激光与光电子学进展, 2018, 55 (1): 011414, 网络出版: 2018-09-10   

四波长激光准六自由度激光增材制造异形永磁件 下载: 1016次

Heterogeneous Permanent Magnetic Parts by Laser Additive Manufacturing with Four-Wavelength-Laser and Quasi-Six-Degree-of-Freedom
作者单位
1 河北工业大学机械学院, 天津 300130
2 南京津淞涵电力科技有限公司, 江苏 南京 211316
3 天津大学精密仪器与光电子工程学院, 天津 300130
摘要
提出了四波长激光多管喷粉准六自由度数控运动的激光增材新结构方法,分析了整体系统结构的线性空间与李子群函数,建立了系统的线性空间数学模型。采用多管喷粉机构喷涂定量Nd-Fe-B稀土永磁体成分,并利用闭环反馈控制四个激光束的功率与角度,进行了选择性与指向性激光辐照,实现了异形永磁件的激光增材成型,成型精度达20 μm,最小宽度低于80 μm,磁能积达474 kJ·m 3。
Abstract
A new structural method of laser additive manufacturing (LAM) with four-wavelength laser, multi-tube dusting, and quasi-six-degree-of-freedom numerical control motion is proposed. The overall system architecture is analyzed in terms of linear space and Lie subgroup function. A linear and spatial mathematical model for this system is established. The components of Nd-Fe-B rare earth permanent magnets are sprayed quantitatively by using the multi-dusting mechanism. In addition, by the control of the powers and angles of four laser beams, the selective and directional laser irradiation is conducted, and the LAM of heterogeneous permanent magnetic parts is realized with forming accuracy of 20 μm, minimum width of less than 80 μm, and magnetic energy product of 474 kJ·m 3.

王涛, 朱惠芳, 张翠亭, 姚建铨, 马俊杰, 何晓阳, 吕雪亮, 牛世兴. 四波长激光准六自由度激光增材制造异形永磁件[J]. 激光与光电子学进展, 2018, 55(1): 011414. Wang Tao, Zhu Huifang, Zhang Cuiting, Yao Jianquan, Ma Junjie, He Xiaoyang, Lü Xueliang, Niu Shixing. Heterogeneous Permanent Magnetic Parts by Laser Additive Manufacturing with Four-Wavelength-Laser and Quasi-Six-Degree-of-Freedom[J]. Laser & Optoelectronics Progress, 2018, 55(1): 011414.

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