The energy efficiency of the process of metal cutting at the expense of the sustainability of the evolutionary trajectory of the cuttingVilor L. Zakovorotny, Viktor P. Lapshin, Valery E. Gvindjiliya and Nguyen Dong AhnE3S Web Conf., 104 (2019) 01017DOI: https://doi.org/10.1051/e3sconf/201910401017