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This study aimed to identify the research gaps in Metaheuristics, taking into account the publications entered in a database in 2015 and to present a case study of a company in the Sul Fluminense region using the Desirability function. To achieve this goal, applied research of exploratory nature and qualitative approach was carried out, as well as another of quantitative nature. As method and technical procedures were the bibliographical research, some literature review, and an adopted case study respectively. As a contribution of this research, the holistic view of opportunities to carry out new investigations on the theme in question is pointed out. It is noteworthy that the identified study gaps after the research were prioritized and discriminated, highlighting the importance of the viability of metaheuristic algorithms, as well as their benefits for process optimization.

With growing competition for markets in the various production sectors, both in Brazil are looking for improvements in the world, as well as improvements that can improve their productivity and reduce production costs and quality services. For this, among other strategic actions, continuous improvement can be sought as a means to remain competitive. In this context, the present work case, developed as a work study, has as its central objective the reduction of refuges generated by deficiencies in the production process in a metallurgical company that manufactures ductile iron pipes, among other products. From the application of the method and quality tools used, it was possible to identify the main causes of scrap, favoring its reduction through process improvements. With the identification and analysis of problems related to the training of manpower, lack of compliance with material specifications, inadequate or unfulfilled methods of production and making adjustments to machines used in production processes, it was possible to reduce the occurrence of defects in cast iron pipes, when compared to the amount of scrap counted before and after the changes implemented. The results achieved showed significant gains for the company by reducing the amount of scrap and rework generated during the production process. The reduction in the occurrence of defects favored a reduction of costs, contributing for the company to become more competitive.

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