“…The friction coefficient found in experimental studies well exceeds this limiting Contact Stress Distribution at the Tool-Chip Interface 97 value reaching 2 (2,33,34), while in the known modeling (including FEM) it is assumed to be in the range of 0.0-0.5 (35)(36)(37). The friction coefficient found in experimental studies well exceeds this limiting Contact Stress Distribution at the Tool-Chip Interface 97 value reaching 2 (2,33,34), while in the known modeling (including FEM) it is assumed to be in the range of 0.0-0.5 (35)(36)(37).…”