中文摘要：

根据产品开发过程中存在的产品设计和工艺设计并行性,以及产品设计信息由粗渐细的递进规律,将产品工艺设计过程划分为概要工艺层、初步工艺层、详细工艺层和改进工艺层。利用集成定义建模理论对各层主要工艺活动进行建模,构建出四梯级的分层递阶工艺成熟度模型。针对概要工艺层的信息粗粒度,提出基于主要产品特征的成熟度评估,而对于信息细粒度的工艺改进层,则采用工艺失效知识进行工艺成熟度评估。所提方法在某汽车零配件产品工艺设计中得到应用验证,有助于工艺设计阶段的前移和制造可靠性的提高。

英文摘要：

According to the parallelism of product design and process planning in product development process and the regular pattern from roughness to precision of product design information, the product design process was divid- ed into conceptual process, rough process, detail process and modified process of four job levels. Each level＇s main process activities were modeled by Integrated Computer Aided Manufacturing DEFinition method （IDEF）, and the hierarchical process maturity model of four levels was constructed. Aiming at the information coarseness of concep- tual process layer, the maturity evaluation based on product characteristic was proposed. For the information fine- ness of process improvement layer, the process maturity was evaluated by process failure knowledge. The proposed model was verified in an intelligent computer aided process planning system for automobile parts manufacture, and the result showed that it was helped to forward the process design stage and improve the manufacture reliability.