Análise das causas raízes de falhas no processo de pintura de peças plásticas e proposta de um plano de ação para reduzir seus efeitos indesejados

Abstract

Currently, the relationship between industry and customer has been changing, requiring more and more redefinition of strategies related to the business. With the wide variety of companies entering the market, in the same field of activity, pricerelated strategies are not enough to stay in the lead. In relation to this, the factors related to Quality make only a few take the lead. Inserted in the context of search for the daily improvement of the Quality of its products, is a Plastic Injection company with offices in Joinville-SC and São José dos Pinhais-PR. The objective of the present work is to investigate the root causes of failures in the paint process of a plastic injection industry with the help of the Quality tools to reduce by 30% the indices of parts that do not conform to the proposal of an action plan. Firstly the painting process was described and the data analysis for the years 2016 and 2017 was carried out to identify the defects causing the highest rates of scrap in the process. After that, it analyzed the possible causes of the problem and defined a plan of action, which was implemented in September 2018 and it will be possible to evaluate the effectiveness of the actions from the data collected in the next five months. For future work, it was suggested the evaluation of scrap rates and a new application of the PDCA cycle to seek new improvements in the process.