Variations of Workstation Processing Time Affecting Work-in-Process Number Decisions in Segmented CONWIP Line

• Main Authors: Cheng-Hang Kao, 高正航
• Other Authors: 楊太宏
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/ue55q9

碩士 === 國立虎尾科技大學 === 工業工程與管理研究所 === 96 === Nowadays, there are a great variety of processing methods in the manufacturing industries. Push and pull production are the two most popular ones which are frequently used to control the production process. While the former refers to a produce-and–trade approach as a make-to-stock strategy, the latter is customer-oriented in which the amount of materials is provided according to how much the customers need. Recently, manufacturing researches increasingly adopt pull production for the advantages of both time-saving and cost-saving in stock. Moreover, research into the pull production method also resulted in various innovative pull production systems. This study aimed to investigate the relationship between the variations of workstation processing time and the decision on the WIP number settings in segmented CONWIP line. The computer simulation was conducted to study the relationship between the variations of workstation processing time and the WIP number settings. Various segmented work-in-process number was analyzed and decided according to the output from the computer simulation. Results show that the smaller the variation of workstation processing time is, the fewer segmented work-in-process number should be. This study proposes how to decide segmented work-in-process number based on the variations of workstation processing time and hope to enhance the effectiveness of production process.