The Research of Optimization of Production Planning and Scheduling for Steel Bar -- a Case Study of W Company

• Main Authors: Jia-Ling Xie, 謝佳玲
• Other Authors: Shih-Hsien Tseng
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/4386fg

碩士 === 中原大學 === 企業管理研究所 === 106 === To face the new trend challenge that the local distributors plan to transform themselves to manufacturers and, at the same time, the threat of competitors over the world that expand their production dramatically, a research based on W company to establish new model of production planning and scheduling system on the purpose of reducing the production cost, improving the efficiency, enhancing the quality and shortening the lead time has been made. This paper is focus on building up a new model of production planning and scheduling system for cold drawn steel bar of W company. The original system is based on the logical of FCFS (First Come First Served) which obviously has the defects of low utilization of equipment, high setup times and poor control and schedule of the source material, which results in long lead time and high material inventory. By using the Group Method on the new model, the setup time between difference specifications has been shortened, and a better control of source material has also been improved. The result is the shipping schedule is more accurate and the lead time is shorter. For the equipment with full load all year round, the reduction on setup time means higher utilization and also means more output. The new model has been on line for test on June 2017 and has been verified its achievement on less setup time, shorter lead time as well as higher production output. These facts confirm that the new model of production planning and scheduling system on cold drawn steel bar established by W company has higher efficiency and owns more advantages than the used FCFS system.