Análise comparativa da substituição de dressador galvânico por dressador cerâmico em retificação cilíndrica interna

Abstract

The growing competitiveness among automobile industries has increased the search for the best use of their resources. To be more efficient, producing more with fewer resources, is the ideal way to go. And one of the possible ways to do this is to investigate new tooling, responsible for a large part of industrial spending. Thus, the character of this study was given: an investigation evaluating the possibility of exchange of dressings rings with galvanic specification for ceramics. The objective is to evaluate the viability of the substitution, and the main impacts generated from it. The experiments were performed within a partner company, using the methods already used by it for this type of validation. The process involved was the internal cylindrical grinding of the nozzle body. The tools involved in the project were the dressing rings, responsible for the sharpening of the micro grinding wheels, which are necessary for grinding the guide, part of the nozzle that was the object of study. The results of this work include the comparison of dressers, using machine and process capability, qualitative studies and characterization of grinding wheels, dressers and grinded parts, as well as study of life time, study on the optimization of dressing parameters and economic viability of replacement.