TY - GENERIC DO - 10.20944/preprints201901.0055.v1 UR - http://dx.doi.org/10.20944/preprints201901.0055.v1 TI - The Effect of Swinging Ball Heads with Different Arrangements in Multi-Point Stretch Forming Process T2 - Preprints AU - Xing, Jian AU - Cheng, Yan-yan AU - Yi, Zhuo PY - 2019 DA - 2019/01/08 PB - Preprints