Knowledge Graph-Based Machining Process Route Generation Method

To address the problem that machining process instance documents cannot be effectively reused, the machining process knowledge graph was established, which classifies the machining process knowledge into multiple dimensions and defines the domain conceptual knowledge model using entities, entity attributes and entity relations in each dimension. The machining process model was established based on the machining feature topology of parts, and the knowledge management was carried out on the machining process examples of typical parts. The matching rules of machining features were formulated, the similarity calculation method of the feature topology of parts was designed, the most similar process route template was matched, and the process of the machining standard features was reused. Finally, the method was verified effectively in a machining process design of a shaft part.