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Application design of experiments in the injection molding process.

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Author(s):
Edwin Vladimir Cardoza Galdámez
Total Authors: 1
Document type: Master's Dissertation
Press: São Carlos.
Institution: Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD)
Defense date:
Examining board members:
Luiz Cesar Ribeiro Carpinetti; Antonio Fernando Branco Costa; Marcelo Seido Nagano
Advisor: Luiz Cesar Ribeiro Carpinetti
Abstract

Industrial experiments are made by companies in order to improve the quality characteristics of products and production processes. In this sense, the objective of this dissertation is to study and apply the design of experiments in the industrial quality improvement. In addition, as a part of the objective, an application of the techniques of design Fractional Factorial '2POT. K-P', Analysis of Variance and Response Surface Methodology is done. It is focused in an injection molding process applied by a company, that makes and trades plastic products for the civil construction. Using this experimental study, the most important parameters of plastic injection are identified: melt temperature and injection pressure. At the same time, the optimal levels of adjustment of these parameters are determined. From this study, it is evaluated both the implantation procedures of the designs of experiments as well as the difficulties faced. Also, this study tries to contribute to the university-company relationship. (AU)