INDIRECT COOLING OF ROTARY CUTTING TOOL Russian patent published in 2014 - IPC B23C5/28 B23B27/16 B23B51/06 B23Q11/10 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and can be used for high-speed machining by rotary tools made from titanium and other low heat conductivity materials This system includes at least one zone at tool body for fitting the cutting element in place and indirect cooling channel in tool body for coolant feed. Temperature of said coolant is lower than that of ambient medium on cutting element rear surface. Besides, it has cavity formed at cutting element rear surface to receive cooling fluid from the channel for cutting element cooling. Said cavity has discharge hole connected with discharge hole at cutting element surface to discharge cooling fluid into atmosphere. Cooling fluid flow rate does not exceed 10% of required flow rate of synthetic cooling fluids at machining of the same part by irrigation. Cooling fluid represents a two-phase flow for heat removal from cutting element by heat absorption at evaporation of cooling fluid.

EFFECT: longer life of tool.

11 cl, 9 dwg