FERRAMENTA DE CORTE: fresa de topo

Abstract

Technology is constantly growing. In the mechanical industry, this growth is seen more and more, in the development of manufacturing processes, in modern machine tools and the continuous evolution of cutting tools. Cutting tools are used to remove material on the workpiece surface, this process is known as machining, and through this process, various mechanical components are manufactured. In order to monitor the technology, studies were made aimed at a better choice of cutting tools and their machining parameters, due to increased demand and reduced costs with product quality assurance. AISI H13 steel is a tool steel for hot work with an excellent combination of hardness and fracture resistance, with the maintenance of these properties at temperatures up to 600 ° C. resistance to thermal shocks and thermal fatigue cracks. This steel also has levels of machinability, polishability and response to texturing, important for the segment of making molds for plastic injection. This work will show the execution of two cutters with diameters of 11 mm, one of them made of high-speed steel and the other of hard metal with TIN (Titaneo Nitride) coating. to find out which one is more viable for milling AISI H13 steel, using coolant oil for a better surface finish of the part. To conclude the results, a billet of AISI H13 steel was machined in a WOTAN M2 machining center, to manufacture the matrix of a mold for injection of car wheels. With the completion of the tests, it was possible to affirm that the TiN-coated carbide mill is more viable for machining in this type of material, even with a higher cost than the high-speed steel mill.