Navegando por Assunto "Controle de processo"

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Aumento do índice de disponibilidade da frota de máquinas de uma empresa do setor logístico através da aplicação de métodos de engenharia de manutenção
(Centro Universitário do Estado do Pará, 2019-12-19) Oliveira, Rafael Creão de; Conde, Cláudio Luciano da Rocha; http://lattes.cnpq.br/4768582829135033; Mendes, Marcelo Pinto da Costa; http://lattes.cnpq.br/3099832904134964
The search to improve the performance of internal processes and management indicators is directly associated to customer satisfaction and the company's financial success. Being an outsourced company, these charges are even higher, especially when the production chain where the organization is inserted moves great financial values and demands high operational quality, such as aluminum production. Among several methods for improvement, the Six Sigma philosophy proposes that excellence will never be achieved, as there are always opportunities for improvement, but that optimization should be pursued until the results achieved are acceptable. The study of this work is based on the search to improve the machine fleet performance of the studied company starting from the application of the method used in Six Sigma projects, the DMAIC methodology. The application of the five steps of the methodology allowed to identify the problem related to the maintenance sector and the machine fleet availability indicator that showed the 55% metric, which generates contractual billing losses. The purpose of the study is to optimize it to achieve financial gains, operational reliability and improved customer satisfaction. By measuring data and using quality tools it was possible to analyze which machines and which factors produced undesirable results, thus facilitating decision making to solve the problem. That way, the application of the methodology allowed to reach and exceed the goal, initially proposed to increase to 80% the machine fleet availability indicator. Comparing with the revenue that would be obtained with the indicator prior to the study, the financial benefits represented an economic gain of R $ 2,009,002.20 in the seven months of the study.
Proposta de aplicação da manutenção centrada em confiabilidade em uma metalúrgica
(Centro Universitário do Estado do Pará, 2019) Costa, Rodrigo de Souza; Azevedo, Thayane Nascimento de; Mendes, Marcelo Pinto da Costa; http://lattes.cnpq.br/3099832904134964; Conde, Cláudio Luciano da Rocha; http://lattes.cnpq.br/4768582829135033; Patrício, Júlio Cezar dos Santos; http://lattes.cnpq.br/1799014841946544
Reliability Centered Maintenance (RCM) is a methodology used to ensure that all components of an asset or operating system have their functions preserved, their condition of safe use, quality, economy, and performance without degrading the environment. This paper aims to propose the implementation of RCM on critical machine Casting items in the metallurgical foundry sector, in order to mitigate failure modes and increase process reliability. The stages of the present study were organized into: (i) data collection from the first half of 2018 and 2019 in daily production and shutdown reports; (ii) monitoring and filtering of information; (iii) determination of the object of study; (iv) description of the casting process; (v) investigation into machine mold subsets; (vi) determination of the target subset; (vii) observation on site; (viii) construction and analysis of FMEA; (ix) calculations of MTBF, MTTR, Availability, Failure Rate, Probability and Reliability of equipment indices and (x) proposal of an effective and efficient maintenance plan. In this way, it was proved that the machine 2 under study presented in both years the largest number of stopping events in the stacking subset, having as one of the main causes the speed of the machine operation and mismatch in the proximity sensor related to lack of proper inspections and preventive maintenance. The maintenance plan proposed by Reliability Centered Maintenance aims to increase machine reliability and productivity and assist the foundry industry in decision making.
Proposta de melhoria da cadeia produtiva de uma fábrica processadora de açaí através da aplicação da etapa de planejamento do ciclo PDCA
(Centro Universitário do Estado do Pará, 2018-12-13) Veras, Graciele de Oliveira; Lisbôa, Juliana Machado; Ferreira, Marcelo Leopoldo Sepeda; http://lattes.cnpq.br/4992513231589850; Freitas, Felipe Fonseca Tavares de; http://lattes.cnpq.br/5523511253031983; Fanha, Caio Oliveira; http://lattes.cnpq.br/0746570762114406
This work presents an analysis of the application of the PDCA cycle planning step (Plan, Do, Check, Act) in an açaí processor located in Icoaraci-PA. The objective of this work is to propose solutions in the production chain of açaí pulp with the aid of the planning stage of the PDCA cycle. For this, the methodology was executed with the aid of quality tools aligned in four substeps: identification of the problem, in which interviews and data collection were carried out, noting that the main problem that affects the quality of the final product is the rate of returns due to quality problems; in phenomenon analysis, benchmarking was carried out with a competing company. Based on the data collected, it was found that the main products that presented the highest rates of returns due to quality problems were the popular açaí and medium açaí, indicating that the main reasons for discards were: excess of sludge and solid content. After that, the goals were defined based on the gaps found; analysis of causes, which sought to identify the root causes of the quality problems encountered; and finally, the plan of action was elaborated, aiming to propose actions for each root cause found.
Robô comprador – automatização de emissão de pedidos de compras através de RPA
(Centro Universitário do Estado do Pará, 2021-07-01) Vieira, Fernanda Pinheiro de Menezes; Nascimento, Polyana Santos Fonseca; http://lattes.cnpq.br/6889523334917369; Araújo, Andrea Cristina Marques de; http://lattes.cnpq.br/7322421741765559
The procurement department, an integral part of Supply Chain Management, plays an importante role in both the financial and operational results of the companies. Despite the relevance, there are still many operational tasks and repetitive activities in these department, with high volume vs. low financial impact. After an analysis of the purchasing department of a multinational mining company with a branch in the State of Pará, a high volume of material purchase orders was identified with a value of up to 20,000 reais (limit considered low risk for the company, where the buyer needs only 01 proposal for issuing a purchase order) - 86% of the total quantity, with low financial representation - 19% of the total amount. Thus, this study proposes to develop and apply RPA (Robotic Process Automation) to automate the issuance of purchase orders for material from the selected company with a value of up to 20,000 reais. RPA has gained prominence as a software that allows the automation of routine, standardized and highvolume processes, allowing the labor previously allocated to these processes to be reallocated to more strategic activities, increasing the performance of companies with possible improvement in the engagement of teams involved. The main results of the study was a detailed description of steps for the RPA implementation in the purchasing department, a revised flowchart and purchasing procedure - as well as the main expected results of the application. Future work is suggested after collected the results from the implementation, once the project has been fully delivered.