[Purposes]Under the background that manufacturing enterprises need to take process optimi-zation as the premise when carrying out intelligent and digital transformation,a systematic lean improve-ment analysis method are designed in view of the long lead time of electrical equipment.[Methods]Firstly,the time consuming factors in different stages of the whole production cycle are modeled.Then,based on polychromatic sets theory,an influence factor weight matrix and influence evaluation method are proposed to find out the key influence factors.Finally,lean improvement paths are determined and implemented according to the current situation of enterprises and improvement targets.[Findings]Lean improvement of the production process of T products of N Company was realized by this method,and the lead time was shortened from 19～25 days to 16～20 days,meeting the lean improvement target of T prod-ucts being delivered within 3 weeks.[Conclusions]The example of lean improvement proves the practi-cability and feasibility of the proposed method.
关键词
交货周期/精益改善/多色集合/价值流
Key words
lead time/lean improvement/polychromatic sets/value stream mapping
维普
万方数据