The formation of wear areas on a tool changes power-, temperature and also accuracy quality charac-teristics of a treatment process. The distribution of al-lowance between technological transitions at the use of automated equipment brings the conditions of a cutting process closer to semifinish or finish ones that contributes to control effectively technological heredity. Work surface wear can be estimated through the time τ of a cutting process duration or through the length L of the way in the direction of cutting motion which allows predicting the increase in machining effectiveness based on a rational use of cutters properties. Breakingin and steady wear at rotary cutting increase because of the increase of a cutting edge extension. The application of plasma nano-technologies in material treatment in a glow discharge in controlled gaseous medium allows carrying out changes in the structure on the surface of tools reducing the period of tool breakingin and increasing a steady wear period because of the boundary layer reduction and grinding a source material grain for a specified depth of 0.2…03 mm, that is, commensurable with an optimum bevel edge of tool wear. Tools with continuous single renewal of a cutting edge at optimum wear can realize large ways of cutting L or time τ of a cutting process to carry out a travel of any size.
resource, durability, updating rate of cutting edge, hardened layer depth, glow discharge, nanotechnologies
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