关键词: 白车身, 工艺模板, 聚类分析, 知识发现

Abstract: To improve the efficiency of process planning for Body In White(BIW),a methodology of process template for BIW parts based on clustering analysis was proposed.The process was classified into assembling position working procedure,joint working procedure and inspection working procedure according to the typical assembling sequence for BIW.The distance between assembling positions was calculated by expert scoring method.Joint procedures were coded by 4 digits and the distance was measured by Manhattan distance.To improve the efficiency and accuracy of calculation,a formula solving the binary attribute distance was applied to calculate the inspection distance.Process clusters were eventually merged by the agglomerative hierarchical clustering method.Process template with the target of minimum variance between process distances was extracted from every cluster.A case study was used to show the effectiveness of this methodology.

Key words: body in white, process template, clustering analysis, knowledge discovery