Análisis comparativo de los efectos producidos ante la aplicación de procesos de corte por oxicorte (OFC), plasma (PAC) y electrohilo (WEDM)

Abstract

This research work deals with the topic of comparative analysis of the effects produced by the application of OFC, PAC and WEDM cutting processes on low carbon steel specimens. The objective that this research wants to reach, in a quantitative terms is to determine the effects produced in AISI 1010 steel, by the heat transfer that happens during the cutting process. The specimens had cut, the operational parameters were recorded and, by cold cutting, the original properties of the steel were determine. For mechanical characterization, a tensile test was carried out under the ASTM E8 / E8M-16a standard and the test for the determination of microhardness, was determined by following ASTM E93-17 standard indications. A metallographic analysis was performed that revealed the microstructural changes produced by the cuts made with plasma and oxygen methods. The results show that the PAC process is the cut that alters to a greater hardness values, associated with the presence of fine acicular ferrite, OFC alters within a wider area the hardness surface, effect associated with the presence of acicular ferrite coarse and that for the WEDM process the microstructural change and hardness values were not appreciable because a heat affected zone (HAZ) could not be determined. Cut quality and operating costs were also determined and shown as part of the results in the research work