Análisis del deterioro de una herramienta cerámica en el maquinado del acero AISI 316L

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Abstract

Metal cutting processes by chip removal play an important role in the machine building industry. Therefore, continuous improvement of these processes is essential to achieve optimal levels of productivity, quality and production costs. A key element in these processes is the cutting tool. In the industry, stainless steels are used very frequently, a material considered to be poor in machinability, and which during its processing by chip removal causes a considerable damage of the tool. This motivates the constant development of cutting tools, such as the BIDEMICS tools, belonging to the ceramic family, specially designed for machining heat resistant alloys. The present work aims to analyze the wear behavior of a BIDEMICS ceramic tool during the machining of heat resistant alloys. It is analyzed, from a study in the detachment zone, of the main types of wear present during dry machining and with the use of Minimum Quantity of Lubricant (MQL) and the relationship between the initial speed of wear with the parameters of the cutting regime. The independent process variables were the cutting speed at three levels (100; 200 and 300 m/min) and the feed at three levels (0.1; 0.2 and 0.3 mm/r). The depth of cut was kept constant and equal to 0.5 mm. The potential of this cutting tool to machine this type of alloys was demonstrated.