Contribuition to the study of Process development for sheet metal forming using a fluid an a replacement for dies; / Contribuição para o estudo do processo de conformação de chapas utilizando um fluido na substituição das formas da matriz: Hidroconformação

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

The process of conformation has been used for decades, maybe centuries, and the end of the evolution and the usage of this process seems unpredictable; Defining the blanks, estimating effects such as localized wrinkles, possible fissure points and other related phenomena the conformation, have evolved a lot thanks to the modern computerized tools developed for these purposes. Some time ago it was believed in what can be called the toolman experience, which we may consider somehow consistent since there are many professionals in the market who have dedicated many years of their lives to the matter. Nowadays, the so called guessing method still prevails, however the professional working in this area begins his work with some initial parameters; The process of sheet metal formation is undoubtedly one of the most important processes in an automobile industry. It can be easily seen through the mere observation of automobiles on the streets due to the fact that the shapes of the products are similar to the ones expected in the project stage. It is noteworthy to highlight that the aforementioned characteristics can only be detected if all the variables of the process follow the previous specifications of the project. Currently the companies have been searching for methods in order to make their products even better, aiming also at both cost and time reduction. A useful resource so as to meet the expectations is the study of new techniques and processes. Bearing this in mind, this work presents one of the latest concepts in relation to the formation of sheet metal using hydroforming, analyzed through finite element methods and conformation limits diagram. The main objective of this work is to show the possibility of conforming sheets applying a fluid in the replacement for dies, having an evaluative methodology and optimization for the imprinting process. Hopefully there will be a contribution to the cost reduction in industrial application by means of the use of this methodology;

ASSUNTO(S)

hidroconformação estricção hydroforming conformação de chapas metálicas diagramas de limite de conformação conformation of sheet metal conformation limits diagram engenharias método dos elementos finitos fluido na substituição da matriz finite element method fluid an a replacement for dies

ACESSO AO ARTIGO

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