ANÁLISE COMPARATIVA ENTRE PASTILHAS DE CORTE NO PROCESSO DE USINAGEM

Abstract

This work is based on the comparison between two cutting inserts that are used in different machining processes with the lathe, which are the PVD coated inserts and the uncoated inserts, the objective is to determine which tool has a higher resistance over several hours of constant work, greater flexibility and quality during machining and the best cost and benefit. The study is justified that when performing the machining process using a lathe, it prioritizes the use of the most appropriate insert according to your need and the type of service to be performed. In order to achieve these results, a bibliographic review will be made to raise some important factors to curiosities and through the practice of the project, the machining process will be carried out with the two inserts using the same cutting parameters (cutting speed, feed speed and speed effective cutting speed), the same type of material that will be used carbon steel SAE 1045 which has some important characteristics during machining and the same deburring operation for the production of a type of part where the manual machining steps will be carried out (facing and cone), and the automatic step (longitudinal thinning). The machining operations will be carried out in a metallurgical workshop located in the city of Varginha, where this type of situation is already taking place on the inserts and it will be possible to identify which is the best insert after these tests, it is now up to the operator to choose the type that best suits him.