摘要

Aiming at the cumbersomeness of the tediousness and complexity of the processing of the volume and surface features during the transformation from part design model to casting model before numerical simulation of casting, this paper propose a method for the feature processing from design model to casting model. This method is based on actual production requirements and feature-based modeling technology, using Creo 2.0 as the research and development platform to achieve the optimization of the feature processing process in the transformation. First, based on the feature recognition, it traverses all features in the model, and suppresses the features unsuitable for casting in batches; Secondly, the offset and substitution commands of flexible modeling are encapsulated, and the requirement of adding machining allowance is realized by thickening and replacing with reference surface. The effectiveness of the proposed method is verified by taking the cabin in aerospace parts as an example.