We consider a new approach to the solution of the problems of elevation of the wear resistance of cutting tools and enhancement the serviceability of structural materials. It is based on the analysis of the physicomechanical and physicochemical influence of hydrogen in the cutting zone. The hypothesis of hydrogen-diffusion mechanical treatment and the concept of hydrogen-accumulating tool are proposed. We consider various sources of gaseous hydrogen. The process of cutting in the presence of hydrogen is studied and the obtained results are analyzed.

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