Análise do processo de industrialização do feijão através dos gráficos de controle X e R

Abstract

The companies are concerned more and more to avoid losses in their productions. Therefore, in 1924, Walter Shewhart developed a statistical letter for the product variability control, with the intention of eliminating the abnormal variations of the process or the losses in the production. He is considered the father of the Quality Statistical Control. The graphs of control are statistical tools used to monitor, to control and to indicate whether a process is under quality control or not. Quality is a constant concern of the companies in all the production processes. In this work, the objective is to verify the quality of bean industrialization in the company Cereais Centro Serra Ltda, through the graphs of average and width control, in order to, thereby, obtain a diagnosis of the best method adopted for the quality control in the production process. The results taken from the analysis of the graphs related to width and average show that some points are out of specifications control, so that it may be possible to verify a 22kg-damage for the company in October, in case of the process to continue with such an index of average and variability. But thereby the advantage belongs to the consumer, who is obtaining a larger amount of bean per package. Therefore the company should set up a more rigorous control of the industrialization process, in order to obtain precise results and, thereby, increase its profitability.