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http://dx.doi.org/10.7232/JKIIE.2016.42.6.404

A Study on Operational Strategies for Footwear Manufacturing Systems  

Kwon, Oh Hun (Pukyong National University Graduate School of Management of Technology)
Koo, PH (Pukyong National University Division of Systems Management and Engineering)
Publication Information
Journal of Korean Institute of Industrial Engineers / v.42, no.6, 2016 , pp. 404-411 More about this Journal
Abstract
In footwear manufacturing systems, the upper parts of the shoes are manually sewed on a sub-line while bottom parts are produced by machines such as injection and molding machines on a sub-line before these two parts are combined into complete shoes on a final assembly line. The manual operations for the upper parts lead to a large variability in processing times, resulting in higher work-in-process inventory. In most footwear industries, production lines have been controlled by MRP-based push systems. Some industries attempt to introduce Kanban-based pull systems. This paper identifies the characteristics of the footwear manufacturing processes, and discusses the problems of the current control systems. As an operational alternative, a CONWIP-based control strategy is presented. Simulation experiments are performed to examine the performance of the control strategies.
Keywords
Footwear Manufacturing; CONWIP; Kanban System; Pull System;
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