Sequence planning for stamping operations in progressive dies
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A Progressive die is used to transform flat strips of sheet metal into a formed part. This transformation is performed progressively by a series of stations that stamp the material into a desired shape. The progressive dies reduce the time and cost of producing complex sheet metal components. The design and manufacture of these dies is difficult and complex. Computerized systems have been proved very useful tools for this task. In this paper, a computerized system for the design of the stamping progressive die is presented. In this system, embossing and cutting operations are sequenced based on a classification and fuzzy set theory. The sequencing is done in two stages. First, the operations, which can be carried out simultaneously, are defined by the classification method. In this method, all of the operations are divided into operation groups according to classification rules. Three rules are used to determine the operation groups in this paper. These rules are based on relations between the features in the component. The sequence of the operation groups is then determined using fuzzy set theory. Three components taken from industry are used to show the capabilities of the proposed method.
KeywordsProgressive die Operation sequencing Stamping operation Classification Fuzzy logic
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