Study on ultrasonic-assisted abrasive flow polishing of internal flow channels in additive manufacturingWeiwei LIU, Yizhou WU, Haoran LI, Ziyan LUO, Jinjin LIU and Zhanshuang WANGJNWPU, 42 5 (2024) 809-817DOI: https://doi.org/10.1051/jnwpu/20244250809