关键词: 计算机辅助工艺设计, 切削体, 分割面, 分解组合, 特征技术, 产品设计

Abstract: A delta-volume decomposition and combination strategy was proposed to realize product design data reuse for process planning. According to the strategy, required process data, such as basic process route，process model, dimensions tolerance, were offered to process planning by delta-volume decomposition and combination. To generate cutting features which were satisfying the processing requirements, delta-volume decomposition algorithm and partition surface generation method were expounded. The decomposition priority strategy of partition surface with geometry and process constraints was studied. The combination conditions and priority combination strategy were discussed. On this basis, a case was used to reveal the process design with the delta-volume decomposition and combination strategy,and finally the feasibility and validity of the strategy were verified.

Key words: computer aided process planning, delta-volume, partition surface, decomposition and combination, feature technology, product design