Abstract
The article considers three options for the using of non-raw material workpieces during design preparation of the production, in which the workpiece can be a purchased component, a part or an assembly unit. The authors carried out the analysis of the reasons for using such workpieces during design preparation. The main reason for using a purchased component or a standard unit as workpieces is simplifying the production process or decreasing price of the production. The main reason of using of an assembly unit as a non-raw material workpiece is decreasing the time of making specification document during design preparation. Also, the article describes the rules for the composition formation in the enterprise information systems for each of these three options. The main risk of using such workpieces is a gap in the mechanism of notification changes. Changes in the workpiece must be transmitted somehow to the elements generated from it. This risk can be mitigated with the help of a PDM information system that monitors all changes by organizing an associative relationship between the element and its workpiece. The described mechanism used in PDM is named “Product composition 2.0” at Novator Design Bureau, Yekaterinburg.
Keywords
Components having workpieces, production preparation, PDM, composition of product, USDD, electronic structure.
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