Manufatura flexível: comparativo entre o modelo otimizado e o tradicional

• Autor(a) principal: Oliveira, Ademir João de
• Data de Publicação: 2011
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da Uninove
• Texto Completo: http://bibliotecatede.uninove.br/tede/handle/tede/165
• topic: Produção Flexível; Presettings de Ferramentas; Vida da Aresta de Corte; Desgaste; Flexible Production; Presettings Tool; Life of Cutting Edge; Wear; ENGENHARIAS::ENGENHARIA DE PRODUCAO

This work aims to optimize the machining process by reducing setup time and adjusting the consumption of cutting tools in a flexible manufacturing scenario, adopting an optimized model, which is then confronted with the traditional model, to show the advantages of one over the another. The tests consisted in making the turning operation of thinning on a CNC lathe, using three different types of low alloy steels, SAE 4140, SAE 4340 and SAE 6150, in which the cutting speed was kept constant. The method adopted provided for the exchange of the cutting edge when it reached the criteria established for end of life. The results were not satisfactory for consumption and the amount of cutting edges between the theoretical and practical models. These unfavorable results were attributed to influences of the conditions of materials, machining operations, of changes in the types of steel and the geometry involved. The adoption of a single tool to perform different machining operations proved to be extremely advantageous for the flexible manufacturing scenario, when compared with the traditional model, resulting in a reduction in the number of tool changes, reduced setup time and reducing number of tools in stock