Investigation of the shapes of cuts in a plate in contact with a rigid stamp Akmaral Abdigaliyeva, Venera Bigaliyeva, Sharaina Zholdassova, Daryn Shabdirov and Ainur Shagayeva E3S Web Conf., 288 (2021) 01026 Published online: 14 July 2021 DOI: 10.1051/e3sconf/202128801026