| Summary: | 碩士 === 元智大學 === 工業工程研究所 === 88 === Nowadays, quick response is a very important key for companies to reply to their customers. The best superiority on the market is the goal of companies. Industry puts emphasis on the points of high throughput, reduction of cycle time, high yield and on-time delivery. However, these emphases are highly correlated with cycle time.
This research consists of a case study on the process of manufacturing large scale of transformers. The processing time of the large scale of transformer is very time-consuming. In this research, the critical path is identified by the critical path method first. After identifing the critical path, bottleneck workstation is found and analyzed. Several process-improving schemes, including simplification, rearrangement, combination and deletion are involved. Deletion obtains the best performance which achieves 8% improvement in the argument of processing time. In the last step, all feasible paths on the critical path are expanded using a branching tree scheme. And the outcome reveals that 17% of processing time is saved in the case studied.
Keywords: cycle time , CPM , process improvement
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