Part Representation
Feature Based Part modeling strategy is used to create a Fabrication Model of the part. Given figure shows a typical part model. It essentially comprises of details of the fabrications to be done on the components. For example, the main fabrication FAB 0 comprises of two sub fabrications FAB 1387 and FAB 1392 and four components. These parts are joined together by many weld features.
Figure: Typical Part Model
In short, the fabrication part model will comprise of many sub-fabrications each of which would, in turn, contain welding of some components. This hierarchic representation of FabPart -> SubFabPart -> Components is essentially used to generate the Process Plan Route.