CONDITIONS FOR REDUCING THE POWER TENSION OF MECHANICAL PROCESSING

Abstract

Theoretically justified are the conditions for reducing the power strength of machining, consisting mainly in increasing the cutting coefficient equal to the ratio of the tangential and radial components of the cutting force and depending on the friction conditions on the front and rear surfaces of the tool when turning and on the conditions of friction of the bundle of a circle with the material being processed during grinding. It is theoretically shown that when turning, the cutting coefficient can take on much larger values ​​than when grinding. Increase the cutting coefficient during turning by reducing the friction on the back surface of the tool and using tools from synthetic superhard materials with high sharpness and low friction, as well as using modern prefabricated carbide and ceramic cutting tools with wear-resistant coatings. When grinding, the main way to increase the cutting coefficient is to reduce the friction of the bundle of the wheel with the material being processed and to ensure high sharpness of the cutting grains, using circles from synthetic superhard materials operating in self-sharpening mode.