Evaluation method of filling difficulty for profile ring rolling cavity based on FEM and RSMYang HU, Dong LIU, Yanhui YANG, Jianguo WANG, Nan LYU and Haodong RAOJNWPU, 41 5 (2023) 1006-1014DOI: https://doi.org/10.1051/jnwpu/20234151006
