Improvement of arc burn defect of initial contact loss of electric hot incremental sheet formingZhengfang Li, Bin Wu, Yanping Sun, Mingxiu Shen, Zhengyuan Gao, Zhiguo An and Shihong LuMechanics & Industry, 23 (2022) 11DOI: https://doi.org/10.1051/meca/2022012