Providing the accuracy of producing deep holes in printed cylinders

Abstract

The purpose of this work is the development of a technological scheme for deep drilling of printing cylinders. The urgency of studying the thermophysical processes of deep drilling is due to the fact that the heat released as a result of the cutting operation largely determines the load on the cutting tool, its durability, as well as the quality and dimensional accuracy of the treated surface. In the process of practical realization of the scientific developments received by the author, a technological scheme that allows to control the quality of surfaces during deep drilling was proposed. Experimental studies have shown that the cutting speed is most affected by the breaking of the hole. An increase in the cutting speed within the limits of the investigated velocity interval leads to increase in the breaking of the hole due to increase in the intensity of the heat fluxes and increase in the temperature deformation of the tool and part. Increasing the depth of cut and feed also helps to increase the breaking of the hole, but their effect is less important.