OBRABOTKAMETALLOV technology Vol. 27 No. 1 2025 а b с Fig. 1. Examples of possible contact interactions on the rake face of a cutting tool: а – without MWF feeding (“dry” cutting); b – with graphite in the oil-based MWF, acting as an additive; c – with an additive of a hydrogenated nanoclay mineral in the oil-based MWF; – the area of high local deformation; WM – work material; V – linear velocity; TM – tool material initial stage of this range, the adsorption layer of water is removed, followed by the removal of interpacket water from the mineral surface. When the temperature increases to 600 °C, complete destruction (sintering) of the mineral’s crystal lattice occurs, caused by the removal of the structural water layer. It is known that boundary friction occurs during cutting at low contact loads [19], while intensive plastic deformation leads to “grabbing” of chips by the front face of the tool.
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