Abstract

Article history: Received 5 January 2014 Received in revised format 8 March 2014 Accepted 16 March 2014 Available online 18 March 2014 Single minute exchange of dies (SMED) is one of the most important tools to achieve lean production system. The main idea of this system is to provide methods and to use creative and innovative solutions for continuous improvement. Due to the importance of this issue and its effect on reducing waste during the production process, this study presents a method to identify and to weight factors in the establishment of a single minute exchange of dies in 14 plastic injection factories. In this study, fourteen factories in injection industry were chosen and the factors influencing the implementation of single minute exchange of dies were identified. Following data collection, decision matrix was formed and the weight of each factor was determined by using Shannon Entropy. Then, in order to determine the readiness of factories, VIKOR method was used to rank companies. The results indicate priorities of the following factors in establishing SMED that include: Senior management support, technical capabilities, technical knowledge of staff and consultants, knowledge of mold design, manufacturing infrastructure, team work, combination of the project team work, benchmarking, training, clear understanding of project objectives, rewards and motivation, proper management expectation, project management, teamwork and organizational culture. Practical implications: Due to the factors, Top manager can make the best decision for implementing of SMED technique. This study develops factors influencing on SMED implementation based on Shannon and VIKOR methods for ranking parameters and plants. © 2014 Growing Science Ltd. All rights reserved.

Highlights

  • Due to widespread of production systems, it is necessary to implement efficient and effective methods to control and to benefit from all the features of these systems

  • Since this study aimed on weighing and prioritization of recognized factors, Shannon entropy method was used to weight and VIKOR method was done in order to prioritize

  • Scale weighting was calculated by Shannon entropy and VIKOR algorithm that was done due to final obtained weights

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Summary

Introduction

Due to widespread of production systems, it is necessary to implement efficient and effective methods to control and to benefit from all the features of these systems. In recent decades, industrial organizations have been changed and production issues have faced particular complexity through application of innovative technologies in the industry. In terms of the comprehensiveness, the just in time production systems, as production planning system and inventory control, has been at the top of the pyramid of innovative systems of planning and control (Chu et al, 2007). In other words, when we switch from production of a piece to another one, this must be accomplished in the shortest possible time. We may think it is not always possible, but in most cases, it is achievable

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