Improvement of operational characteristics of the assembly tool equipped

Abstract

Abstract The article describes the studies of the performance of tool hard alloys using two different methods based on mechanical and physical properties. The studies were carried out in laboratory conditions without the use of metalworking machines, which is an undoubted advantage over persistent tests, where a lot of trial processing is necessary to assign rational operating conditions. A comparative analysis of the obtained experimental studies of the electromagnetic properties of replaceable cutting inserts made of tool hard alloys with the known results of studies on impact strength is given. The comparison results showed that the change in the state of the hard alloy diagnosed by impact strength correlates well with the results of studies of electromagnetic properties depending on the temperature in the range specific to the cutting process of materials. The data obtained with high accuracy make it possible according to the test results to assign rational processing modes corresponding to the temperatures at which the maximum operational characteristics of the tool are observed. As a result of the study, a scientifically based method for choosing rational performance processing was obtained, which is based on the physical and mechanical properties of tool materials, reacting to the structural changes during operation under the influence of high temperatures, and allowing to assign performance conditions providing the conditions to get maximum tool operability.