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    Princípios Lean, práticas sustentáveis, sociais e de governança: criação de uma estrutura de trabalho impulsionadora do processo de compras no setor automobilístico
    (Universidade Federal de Catalão, 2023-09-05) Uematsu, Patricia; Guimarães, Núbia Silva; http://lattes.cnpq.br/8448585265537772; Guimarães, Núbia Silva; http://lattes.cnpq.br/8448585265537772; Silva, Sérgio Francisco da; Santos Filho, Tércio Alberto dos
    Environmental instability resulting from human action on the environment forces top leaders to include sustainable issues in strategic organizational agendas. Considering aspects related to sustainability throughout the life cycle of products and processes is essential for organizations to adopt sustainable practices and contribute to a more balanced and responsible development. The principles of lean manufacturing in the automobile industry are a notable example that can result in positive and assertive effects on the global economy, contributing to the economic and social development of many countries. The purchasing process is a central pillar for the effective and efficient functioning of an organization, when well-structured and managed, it can have a positive impact on various aspects of the business. Therefore, this work proposes to develop a framework in the purchasing process that incorporates lean and sustainable initiatives, with an important strategic approach to improve efficiency and corporate social responsibility in the automobile industry. The method used was a bibliographical review on the subject and exploratory-explanatory field research. Subsequently, the most recognized sustainability practices and the aspects considered in the process of selecting and developing suppliers by companies were identified. The results obtained serve as a basis for directing new studies, contribute to the literature on the topic and recognize its importance in the global business context.
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    Lean Manufacturing aplicado à otimização do layout fabril na montagem de tubulações em pulverizadores autopropelidos
    (Universidade Federal de Catalão, 2023-08-28) Albernaz, Danilo Fernandes; Zamunér Filho, Antonio Nilson; http://lattes.cnpq.br/8811301615320915; Zamunér Filho, Antonio Nilson; http://lattes.cnpq.br/8811301615320915; Carpinetti, Luiz Cesar Ribeiro; Guimarães, Núbia Rosa da Solva
    The industry has been increasingly charged for productivity, and the Lean Manufacturing ideology has proven to be an essential tool to reach the productive potential that the company can develop, as it impacts both employees and the company. The main objective of this work was to apply Lean concepts and tools in the plumbing assembly process of a self-propelled sprayer, identifying waste, activities that do not add value using lean production tools, as well as presenting a new layout configuration that enables optimization of the company's production potential. The research is of a quantitative nature with data collected in 2020, before the improvements be implemented and in 2022, after the improvements were implemented in a factory of agricultural machinery in the state of Goiás. For synthesis and analysis of the data, lean manufacturing tools were used, to identify which activities had added value and which did not. Also, the Spaghetti Diagram was used to design a new layout to minimize wasted time in moving materials and people. As a result, it can be seen that there was a potential reduction of 74% in the time of activities that do not add value and are unnecessary in the plumbing assembly process of the self-propelled sprayer solution system, which represents approximately a 15% reduction in production cycle and consequently potential reduction of resources in production depending on how many cycles are needed in the day. There was also a significant gain with the 69% reduction in handling activities that do not add value and may even reduce operator fatigue. It is important to mention that a strong and shared organizational culture is the key to the success of lean production and in this study, the participation of operators in layout change proposals was essential. As a result, the implementation of the changes took place without resistance and everyone felt part of the transformation, being Engineers, technicians and operators involved in the action as agents of change to improve the workstation.
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    Monitoramento em tempo real do desgaste da ferramenta no processo de torneamento por meio da medição da corrente elétrica utilizando internet das coisas
    (Universidade Federal de Catalão, 2023-08-21) Mesquita, Danilo Corinto de; Guimarães, Marco Paulo; http://lattes.cnpq.br/4547166859048137; Guimarães, Marco Paulo; Resende, Andre Alves de; Santos, Aline Gonçalves dos; Belchior, Fernando Nunes
    This study aims to develop a real-time tool wear monitoring system during the roughing operation in the turning process, utilizing the measurement of electrical current from the machine's spindle motor through the Internet of Things (IoT). While there are several methods for measuring wear, real-time measurement methods make the process more efficient as there is no need to interrupt the machine to assess wear. The initial chapters of this work include a literature review on turning, types, and measurement methods of cutting tool wear. Additionally, theoretical concepts and resources used for the development of IoT devices are explored. Subsequently, the materials and methods employed to conceive this research are presented, including the work methodology, the development of the data acquisition board, and the materials, equipment, and methods used in the experiments. The results demonstrate that the proposed solution for the data acquisition system, utilizing microcontrollers, cloud computing, and resources such as InfluxDB and Grafana, was capable of diagnosing tool wear during the roughing process.
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    Aplicação do estudo de tempos, movimentos e métodos para melhoria de produtividade do processo de soldagem em uma fábrica de máquinas agrícolas
    (Universidade Federal de Catalão, 2023-08-24) Borges, David da Silva; Resende, André Alves de; http://lattes.cnpq.br/3492793149542286; Resende, André Alves de; http://lattes.cnpq.br/3492793149542286; Peruchi, Rogério Santana; Guimarães, Marco Paulo
    The agribusiness sector in Brazil is highly relevant to the Brazilian economy, with a high rate of production and exports. Therefore, the agricultural machinery industry becomes relevant to serve this constantly growing sector. In the literature, there are few studies that address this industry, especially those that investigate the productivity of these companies. In order to increase the productivity of the welding process of an agricultural equipments factory and related work station, this work applied a study of time, movements and methods. The object of study was chosen based on the analysis of the productivity index, and the work station with the lowest value of this indicator was selected. Seven film samples of the process were evaluated and made available by the company for analysis. From these filming and on-site observations, the flowcharts, process flow diagram, spaghetti diagram, and man-machine graphs were elaborated, as well as standard time calculation. The data obtained indicated that the welder, who had a high level of qualification, performed all activities of the station, including the least complex ones, and traveled long distances due to the improper disposition of packaging, equipment and machines in the work station. In addition, all three welding sources were found to be inactive for a long period of time, but consuming energy. Based on this information, a new layout and process flow was proposed, which included hiring a lower-skill level employee to perform the less complex activities. The standard time for this scenario was estimated and it was concluded that the proposals made in the study could lead to significant improvements, such as a 35% reduction in standard time, 9% reduction in labor cost, 11% in distance traveled, 12% in the area of the work station, and 39% reduction in consumption and cost with inactive weld sources. Therefore, the study of time, movements and methods proved to be a valuable tool for improving productivity.
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    Na trilha da investigação: uma análise da narrativa policial de Flávio Carneiro
    (Universidade Federal de Catalão, 2023-08-04) Sucena, Franciele Arruda de Oliveira; Carneiro, Fabianna Simão Bellizzi; http://lattes.cnpq.br/2169923665930283; Carneiro, Fabianna Simão Bellizzi; Silva, Alexander Meireles da; Oliveira, Paulo Cesar Silva de
    The detective novel is characterized by reporting aspects of human reality, that is reflecting on man’s violence and crime in society. It is a rich literay branch because it approaches social and cultural themes such as violence, crime, power relations. Corruption, drugs, bribery. Kidnapping and many other elements presente in our society. This work is justified by the fact that we bilieve that detective fiction Works to contribute so that such relevant themes do not go unnoticed in the eyes of humanity. Bisides, it is a literary field that has a certain scarcity of studies and research. It is in this sense that our research seeks to analyze the detective novel by Flávio Carneiro The Stolen Book, initially published in 2013, as a genre of police suspense in order to evaluate the characteristics that make up the traditional novel. And, from this analysis, we demonstrate that the detective novel has great relevance for contributing not only to the formation of the reader but also to propose relevant reflections on issues relevant to our society. Therefore, this dissertation proposes the hypothesis that the detective is the one responsible for solving the crime and all the mysteries involved in the novel? Specifically, it aims to investigate hte characteristics of the traditional detective novel in order to analyuze the presence of the detective in detective fiction.