Analise do sistema de medição em peças aeronaúticas através do estudo de R&R (repetibilidade e reprodutibilidade)

The Measurement System Analysis (MSA - Measurement System Analysis) is a statistical methodology developed to study and analyze the behavior of the measurement systems, and, therefore, allow the increased of the confidence readings performed by measuring instruments. It’s widely used in the automotive industry since the 90’s and is a mandatory requirement for the approval of the parts according to ISO Standard of the automotive sector. However, the aerospace industry doesn’t require this type of Study, once which the vast majority of aeronautics parts have characteristics (dimensions) with very tight tolerances, closed, ie, at the home of microns. This work aims to create lists of recommendations for definitions of measuring instruments in developing of control plans, which correlates tolerances fields of characteristics for different settings and acceptance of the instrument, classified as optimum, recommended and not recommended, through of the study of R&R (Repeatability and Reproducibility) in aeronautics parts. Every methodology of the experimental part was based on modern strategy of continuous improvement, the DMAIC (Define Measure Analyze Implant Control), in order to achieve better measurement method used in the control of milling aeronautics parts, identifying and reducing the variations of the measurement process. The results of the R&R Study in large part of measuring instrument manuals were considered acceptable and/or recommended, ie with values of %P/T and %RR lower than 30%, providing statistical data which have enabled the elaboration of tables of recommendations, which, from this work, have turned into very important documents and aid for Process Engineering, having in their hands a technical study able to identify which is the most appropriate instrument to get a more robust dimensional... (Complete abstract click electronic access below)

Identificação de causas especiais no processo que aumentam a ocorrência de poro na solda de tubos de aço: aplicação etapas definir, medir e analisar do DMAIC

This work covers the methodology Six Sigma with the application of the steps Define, Measure and Analyze a company of steel tubes, with the objective of identify special causes in the process that drives the creation of the pore defect in the solder. It is highlighted the fact that this work is the base of an continuous upgrade project that aims in eliminating the occurrence of this defect. The motivation is given to the necessity of improving the productivity of the factory, considering that the defect occurs at random and your causes are unknown. This way, it was defined that the problem to analyze, measured the capability of the process in DPMO and analyzed with the aid of graph by attribute P. The results show the process that present special cases, as well as the process considered ideal, This way it was stated that in this work, the processes destabilized and the controlled, allowing a comparison of the characteristics for the elaboration of concise action plans to eliminate the defect. The project must follow the steps Upgrade and control the methodology Six Sigma, in order to ensure success in his execution, aiming to amplify the competitive edge of the business

Aplicação das ferramentas da qualidade em uma trefilaria de arames

In today's competitive environment the search for continuous improvement becomes an important factor for maintaining competitiveness. The present work aims to enable the reduction in the number of interruptions of production in a wire drawing mill, with the method of analysis and problem solving (MASP) and the use of quality tools. In this study, it was observed that the use of quality tools is indispensable when it comes to routine management or process improvement because it will enable the identification of improvement opportunities, as well as the definition of an action plan

Avaliação do gerenciamento e disposição final dos resíduos químicos de laboratórios do IGCE, UNESP - Rio Claro/SP

Laboratory of Chemical Waste Management programs are being implemented in various universities of the country and the world, in recognition of the urgent need to change the reality of disregard for the environment, together with objective responsibility of the generator, and especially the awareness of sustainability. Analysis and research laboratories involve a range of waste in developing their studies with intrinsic characteristics related to their form of generation. The amount of waste generated in this segment is negligible compared to industrial activities, but the environmental issue is that these residues do not have a standard technique for treatment due to the potential variation of its composition. This research project, aiming their suitability and continuous improvement, aims to diagnose and analyze the current situation of the management and disposal of chemical waste generated by the laboratories IGCE UNESP, Campus Rio Claro / SP. Universities, through their research, teaching and extension, end up generating potentially hazardous chemicals that may contaminate the environment when they are disposed of improperly, with no concern for the environment and / or public health. Aiming to assist in improvements with respect to this issue, the purpose of this study is to understand the management and disposal of chemical waste from the IGCE, laboratories UNESP - Rio Claro / SP, in order to discuss the situation of such waste, and present proposals to reduce generation of the same and minimizing the environmental impact, thereby increasing the local hygiene through proper disposal. The research instrument used interviews, questionnaires, review of recent literature and observations were made in order to develop proposals for the management and disposal of waste. These proposals based on prevention and corrective control, where the preventive approach aims at lifting techniques and actions to reduce the generating sources and...

Pesquisa-ação sobre o uso de indicadores de desempenho do equipamento em uma fábrica de geradores

In the industrial environment the challenge is use better the productive resources: people and machine. The following work has the main goal improve the efficient losses analysis in the stator bar’s production bottleneck equipment situated in the Electric generator’s factory. The action research involved Theory of Constraints on the restriction system identification and developed the data collection framework by losses typology for indicator measurement. The research showed the data collection standardization importance to obtain reliable data and strategic efficiency indicator to optimize equipments. Besides of this, OEE and TEEP indicator demonstrated efficiency results to analyze the actual efficiency when the machine works and the increase capacity opportunity to treat the hide costs in the organization following the continuous improvement

O Sistema de Gestão Ambiental e sua contribuição socioambiental para a biblioteca central da UNESP, Campus Rio Claro/SP

The minimization and mitigation of environmental impacts caused by the activities of organizations is increasingly becoming a key concern due to factors such as market demand, including suppliers and consumer markets, quality standards and even marketing strategies. The implementation of an EMS - Environmental Management System - allows the organization to achieve the level of environmental performance for its determined and promotes continuous improvement over time. This system consists of a schedule of activities, so as to eliminate or minimize impacts to the environment through preventive actions. It also provides a structured approach to set and achieve goals and objectives, and to establish procedures, work instructions and control, ensuring that the implementation of the policy can become reality. The objective of this work consists in planning a system using environmental management based on the ISO 14001 - standard internationally more widespread and accepted in the requirements to establish and operate an EMS - the Central Library, UNESP, Rio Claro / SP to stimulate the quest for continuous improvement and sustainability in the educational institution. For making the diagnosis of this planning was used the PDCA methodology, suggested by the standard, as well as all requirements for compliance. The results show that the benefits that the organization will receive involve reducing expenses and cost of energy and water, and improve the organization's reputation before the whole university and other educational institutions, reaching about three thousand people on university

Proposta de um processo de categorização de fornecedores para a execução de projetos

Nowadays, in business environment, organizations seek to differentiate through special programs and plans, taking the concepts of sustainability, performance and benefits generated for society. Based in this competitive environment, as companies depend on the use of subcontractors to perform services for your different customers, the work performed by them is directly related to the vision created by the final customer’s vision of the company responsible for the project. Considering that the supplier hired to execute the project does not share the strategic concepts related to the level of services to be offered to the final customers, thus creating the need to develop methods that enable the alignment between the project owner, responsible for preparing the executive project, and the supplier, responsible for the execution of the work. Tangent to this need, it was necessary to create a method of evaluation and categorization for suppliers to hired for the projects. As a result it has been proposed a process of categorization of suppliers, through the restriction of possible companies to be hired for a project designed to promote alignment between strategies and continuous improvement of the solutions offered to the market

Medidas de adequação ambiental para indústria de leite e derivados, como requisito para gestão ambiental

The society continues demonstrating its need regarding the products and services, even though it becomes increasingly value the protection of the environment. In this context, environmental management is defined as a management method that emphasizes to continuously improve results and promote sustainable development. Moreover it has as a tool the laws which provide the benchmarks and mechanisms for companies to adapt their activities in such a way that does not alter the quality of the environment. In this sense, in order to propose improvements to a dairy aiming their environmental suitability, a present study was prepared by following the production activities of the enterprise, the raising of standards and applicable legal requirements and environmental assessment for the preparation of an array of aspects and impacts with the task of identifying the most significant according to MOREIRA (2006). The results indicated that some of the impacts of high relevance are related to the generation of wastewater and solid waste, which do not have treatment and / or proper disposal and indeed require intervention for their suitability. Through, these results were drawn up proposals for actions conformation. In addition, they were proposed meeting the requirement for health and safety at work, in accordance with the standard regulations. This study has the function, therefore, propose to the company in question, an environmental management plan that ensures the protection of the environment and health of employees and consequently the improvement of production processes and products

Redução do tempo de setup de máquinas de usinagem em uma industria automobilística

Continuous improvement of industrial processes is one way to become companies more competitive in the market. For this, a fairly widespread use is the methodology of lean production systems, by eliminating waste. One of the tools of these systems is the method of rapid exchange of die or also called SMED, which will be applied in this study. The study aims to develop proposals for reducing the time of set up of two machines in two machining lines, watching also the ergonomics and safety conditions in this operations. The set up time reduction is justified among others, due to increase the machine productivity. In applying the connecting rod machining line, there were two types of exchange. Reductions in time to set up proposals reached values of 47% to one of them, and 55% to the other. It is important to underline that to reach this result, there was no need for large investments. In the application in block machining line, was developed an improvement in the ergonomic area. It was placed a pulley block that came to increase the time of tool change. Aiming to improve the security of the exchange, without productivity loss, the method was applied to reduce this time. It was developed two proposals.: the first would reduce that time by 19%, and does not require many resources of the company. The second involves the parallelization of the exchange, so that the reduction is 48%. However, this proposal requires one more manpower at the time of exchange and it is not always possible

Utilização de técnicas de planejamento de experimentos na análise de viabilidade de alterações no processo de pintura de grades Antracite em uma indústria automotiva

The search for better performance and competitive advantage in the current market scenario has made organizations keep their focus on quality planning and the use of effective techniques aimed at continuous improvement and optimization of processes and resources. The situation is not different for the painting process in the automotive industry, which has a significant amount of variables and influential external factors. This work, developed at General Motors in São José dos Campos, aims to analyze the feasibility of changing the painting process of the pickup S10 railings in the Antracite color located in the main line to the another line located in a Painting Repair Booth at the plant and, therefore, to study the possibility about reducing the window of cure for Antracite’s enamel by using Design of Experiments’ techniques. Applying this method is possible to find the best arrangement among studied factors of Painting Repair Booth that are, in this case, the Temperature, in Celsius degrees, and Skid’s Steps, in seconds, and it’s also possible to get their behavior according to quality requirements specified by GM rules for the Brightness and Paint Adhesion on the part. As a result, it can conclude that is possible to paint the S10 Antracite railings in the painting process’ line of Painting Repair Booth, and with the new configuration obtained by the Design of Experiments for the process variables, there are significant gains related to the parts’ quality, costs reduction and the optimization of production capacity, much in the main line as in the line of the Painting Repair Booth

Implementação da metodologia lean manufacturing em uma linha de produção por meio de certificação interna

To the companies maintain competitive in the market, they need continuous improvement in quality and productivity. This continuous improvement can be achieved through lean manufacturing tools. The idea of lean manufacturing is to map the flow to identify the processes that don’t add value in the final product, according the customer specification, in others words is eliminate or reduce the waste on the production flow. However the implementation of lean manufacturing is not so simple and involves the resistance of the employees, lack of training and the lack of knowledge to make the implementation. The objective of this study is determinate the good practices and difficulties found by a multinational company in the field of healthy that aims implementing the Lean Manufaturing through an internal certification. The methodology used to approach the problem is a case of study that analyzes the information introduced through discussion made by a semi structured interview. The case study describes the steps to get the certification, involving the concepts of 5S, balancing, standardization and routine management. The literature and the study case showed that the good practices, such as productivity increases, safety level increases and the machine stability were accomplished, but the majority difficulties was found in cultural factors and planning. Some recommendations were proposed to the others companies, such as the elaboration of a qualification matrix and the review of the activities chronogram during the implementation. The way that the company found to implement Lean Manufacturing concepts was a creative method to show to everybody the objective and the target to be accomplished and is one way to recognize the effort through the certification

Estudo exploratório da integração de processos em uma instituição pública de ensino superior a partir das funcionalidades de um sistema de gestão de processos de negócio

Pós-graduação em Engenharia de Produção - FEB

Uma análise das manifestações docentes sobre o uso das tecnologias da informação e comunicação nas escolas públicas de nível médio da cidade de Taquaritinga-SP

Pós-graduação em Educação Escolar - FCLAR

Processo de medição de desempenho em micro e pequenas empresas de um arranjo produtivo local

The local productive arrangements (LPA) are organizational mechanisms that enable the continuous performance of small businesses in production processes and business management models. To promote continuous improvement is essential that companies make decisions based on data that reflects business’ performance (performance measurement) and promote the cluster performance. This way, the aim of this article is to describe the performance measurement process that will support the corporate management of Micro and Small enterprises (SME) of a Local Productive Arrangement in Maringá, State of Paraná, Brazil. To develop this paper, the bibliographic search and action research methods were used. The field research was developed from the cooperation project (PROJVEST) conducted at the LPA, which goal is to deploy improvement actions in project’s participating companies. Metrics and performance indicators constructed from the diagnosis in the areas of Production, Quality and Ergonomics in companies will be presented. Among the main results, can be pointed out that the performance management of LPA is promoting the introduction of corporate management practices in SMEs, stimulating business cooperation, the continuous innovation in manufacturing processes and product quality and business processes.

Teoria dos Jogos aplicada à inteligência competitiva organizacional no âmbito da Ciência da Informação

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)