Indicadores críticos da manufatura de pisos de madeira maciça / Critical indicators applied to manufacture of solid wood flooring

AUTOR(ES)

Philipe Ricardo Casemiro Soares

DATA DE PUBLICAÇÃO

2010

RESUMO

The implementation of quality programs in line production has been used by companies to guarantee the competitiveness in a market more competitive every day. The search for balance between quality and costs is a constant in industrial area and, in this context, improvements in the productive process are fundamentals. In the forest sector, responsible for 3,5% of the countrys GDP in 2007, the quality management applied to the line production is recent and many important aspects are not considered. This study aimed to identify and evaluate the critical points of the process of production of a company of wood processing. Therefore, the research was divided in three stages. The first one was the process mapping of the company and the elaboration of flowcharts for the activities. The second phase was identify and evaluate the critical points for interviews with employees, using FMEA (Failure Mode and Effect Analysis) methodology and Ishikawas diagram, which relates the failure with their possible causes. The third phase was the evaluation of the productive process, applying statistical process control in the main critical points and the determination of the process capability for the Cpk index. The results showed the existence of 6 processes, two of them critical. In those sectors 15 critical points were indentified and 5 were selected for evaluation. The control charts for variables indicated that the process is unstable for the item pieces out of dimension in both processes, while the Cpk index allowed to conclude that the company is not capable to produce wood flooring according to the specifications. For the attributes, the process was stable, except for pieces marked by the sandpaper. The more significant cause of non-conformities was the gauging of the measurement equipments, that resulted in processes with low variation, however with means far from the specifications.

ASSUNTO(S)

administração da qualidade processo - capacidade. quality management análise de risco pisos de madeira controle estatístico do processo statistical process control process capability. wood flooring risk analysis

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