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The article deals with the experimental evaluation (in the laboratory) of environmentally secure lubricating and cooling technological means’ (LCTM) influence on the force characteristics and tool wear in the turning process of structural materials with different chemical activity. The experiment results confirm that the use of vegetable and animal fats in combination with the minimal quantity lubrication technology (MQL) provides for a significant reduction of cutting forces and the contact area.

Improving material cutting by application of natural origin oil