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Copyright of Exacta is the property of Exacta - Engenharia de Producao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Perspectivas Contemporâneas is the property of Perspectivas Contemporaneas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The objective of this paper is to present a case study in an industry plastic injection, located in the Industrial Pole of Manaus - PIM applying simple comparative analysis between process control and statistical process control (SPC). The injection of seats for motorcycles using as the main resin PU (polyurethane). In this study, control charts of Shewhart X-bar and amplitudes were used in order to analyze hardness quota set by client. As a result it was found that the process has some stability, however, there are high variability due to the small tolerance specified by the customer. [ABSTRACT FROM AUTHOR]