关键词: 钣金制造, 工艺性评估, 评估指标, 评估知识模型, 飞机钣金零件

Abstract: Manufacturability evaluation index was set up upon machinability, formability and facility which were decomposed from processing ability. Manufacturability evaluation knowledge model for aircraft sheet metal parts was constructed through systematic modeling methodology. Database and program components were respectively adopted to represent the descriptive knowledge and procedural knowledge. Reasoning process was figured as object definition, knowledge searching and matching, modification of plan matching based on coding, as well as feedback. Evaluation process was designed as input of part information, manufacturability evaluation computing with addition of modification suggesting which could be omitted when the part was designed in reason. Architecture of the proposed system was designed based on Web technology, and Struts frame was used in the system development. An example of forepart of four rib of certain aircraft was used to verify the effectiveness and practicability of the methodology.

Key words: sheet metal manufacturing, process evaluation, evaluation index, knowledge model, aircraft sheet metal parts