International Journal of Extreme Manufacturing, Volume. 6, Issue 2, 25503(2024)

High-performance liquid metal electromagnetic actuator fabricated by femtosecond laser

Yiyu Chen1...2,3, Hao Wu1,3, Rui Li1, Shaojun Jiang4, Shuneng Zhou1, Zehang Cui1,2, Yuan Tao1, Xinyuan Zheng1, Qianqian Zhang1, Jiawen Li1, Guoqiang Li2, Dong Wu1, Jiaru Chu1 and Yanlei Hu1,* |Show fewer author(s)
Author Affiliations
  • 1CAS Key Laboratory of Mechanical Behavior and Design of Materials, Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230027, People’s Republic of China
  • 2Key Laboratory of Testing Technology for Manufacturing Process of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, People’s Republic of China
  • 3These authors contribute equally.
  • 4Department of Mechanical Engineering, The University of Hong Kong, Hong Kong Special Administrative Region of China, People’s Republic of China
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    Small-scale electromagnetic soft actuators are characterized by a fast response and simple control, holding prospects in the field of soft and miniaturized robotics. The use of liquid metal(LM) to replace a rigid conductor inside soft actuators can reduce the rigidity and enhance the actuation performance and robustness. Despite research efforts, challenges persist in the flexible fabrication of LM soft actuators and in the improvement of actuation performance. To address these challenges, we developed a fast and robust electromagnetic soft microplate actuator based on a laser-induced selective adhesion transfer method. Equipped with unprecedentedly thin LM circuit and customized low Young’s modulus silicone rubber (1.03 kPa), our actuator exhibits an excellent deformation angle (265.25?) and actuation bending angular velocity (284.66 rad·s?1).Furthermore, multiple actuators have been combined to build an artificial gripper with a wide range of functionalities. Our actuator presents new possibilities for designing small-scale artificial machines and supports advancements in ultrafast soft and miniaturized robotics.

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    Yiyu Chen, Hao Wu, Rui Li, Shaojun Jiang, Shuneng Zhou, Zehang Cui, Yuan Tao, Xinyuan Zheng, Qianqian Zhang, Jiawen Li, Guoqiang Li, Dong Wu, Jiaru Chu, Yanlei Hu. High-performance liquid metal electromagnetic actuator fabricated by femtosecond laser[J]. International Journal of Extreme Manufacturing, 2024, 6(2): 25503

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    Paper Information

    Received: Sep. 26, 2023

    Accepted: --

    Published Online: Sep. 6, 2024

    The Author Email: Hu Yanlei (huyl@ustc.edu.cn)

    DOI:10.1088/2631-7990/ad23ee

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