APLICAÇÃO DO MÉTODO DE ELEMENTOS FINITOS PARA ANÁLISE DO DESLOCAMENTO ESTRUTURAL ESTÁTICO DE UMA FRESADORA CNC

There is an increasing demand for machines that replace manual labor.Naturally, it is clear that they must not only perform the job, but also have attributes of increasing precision in performance.In the present work, we have the design of a milling machine equipped with a computer numerical command (CNC), equipment that will be studied from the rigidity of the axes used for linear movements.Such axes will be examined in order to discover the existing static deflection.Our hypothesis is that this deflection is caused by the weight of the moving parts on the machine, a mobility widely used for this type of observation in complex geometry.The method used was that of finite elements, together with computers for the simulation, comparing the result with existing criteria in the literature, establishing the machine tool precision.As partial results, we saw that the deflection causes imperfections in the parallelism of the machined part and, in view of this problem, we propose that the measured values of the geometric imperfections can be inserted into the machine's CNC, thus obtaining better precision in the required shape of the part.