SMED

International journal of research and review, 2023

2018

International Journal of Innovative Technology and Exploring Engineering, 2020

Single Minute exchange of Die is popularly known as SMED. The phrase is coined by Shigeo Shingo at Toyota Motors in sixties and used as a synonym for fast changeover of die. SMED was the result of a project that Toyota had assigned to Shigeo Shingo. It was realized that to succeed more than one model of car has to be made. Also it is realized that multiple car models meant multiple changeovers of stamping presses. Under this strategy, not more than 10 to 12 hour press changeovers. Shigeo Shingo had used standard industrial engineering techniques to analyze the changeover. These allowed Shigeo Shingo to reduce the typical press changeover from 12 hours to less than 10 minutes. The tools and techniques developed are widely known as SMED. This paper presents applications of similar SMED tools and techniques for improving productivity on 200 Ton press in an automotive component manufacturing industry. Overall productivity improved by 50% using some of the SMED tools and techniques.

2015

Earlier, the set-up time was considered as a part of productive hours and there was lack of awareness and motivation amongst operators to reduce set-up time. The knowledge of single minute exchange of die (SMED) was limited to a small group of individuals. Lack of investment in mechanisms to aid set-up time reductions and preventive errors restricted the use SMED. At present set-up time optimization is done mainly using work study and by the use of SMED methodology. The SMED technique performs equipment setup and changeover operation in less than 10 minutes. SMED improves setup process and provide setup time reduction up to 90% with moderate investments. The three main steps of SMED system namely- separating internal and external setup, converting internal setup to external setup, and streamlining all aspects of the setup operation is discussed in detail. The various types of setting process errors observed during the study are also analyzed to eliminate the potential for further mi...

2013

To stand up in today’s highly competitive world, the manufacturers need to find a way to reduce the production time. Elimination of the wastes can improve the productivity of the company. By making use of the lean manufacturing tools the company can remain in competition and they can survive in modern world. The main objective of this project is to reduce the setup time of the Gear Hobbing Machine by 20 – 25 % through Single Minute Exchange of Die (SMED) Technique and thereby improving the productivity. The work is carried out at a gear manufacturing company. Careful observation is done while changeover or setup and maximum possible internal activities have been converted to the external activities and then some of the activities were made parallel, hence saving a considerable amount of time.

Journal of technology …

The Single Minute Exchange of Die (SMED), a process-based innovation originally published in the mid 1980s, involves the separation and conversion of internal setup operations into external ones. Although very important in increasing productivity SMED experiences are not very ...

Logistics, 2021

Globalization has led to a significant effect on today’s manufacturing sector. Manufacturers need to find new and innovative ways to increase efficiency and reduce waste in the manufacturing supply chain. Lean/six sigma tools can help companies increase production efficiency and stay in competition. Manufacturing in smaller batches can keep the supply chain lean and customizable. This leads to frequent changeovers and downtime. A changeover is usually required when a single machine produces different products based on the requirement. A large-scale industry can either install multiple individual production lines to cater to the demand (usually expensive) or make frequent machinery changes. Single Minute Exchange Die (SMED) is a system designed for reducing the changeover time for machines. It reduces the time taken to complete the activities and eliminates non-essential activities throughout the changeover. Scheduling an operating procedure within SMED in such case is a challenge. P...

Acta logistica

The production process fluency is often interrupted by idle time. A significant proportion of individual idle times is caused by changeover. Trends, such as the individualization of requirements, the constant effort to meet the customers’ requirements on time and the maintaining of the production process fluency at low costs, are aimed at eliminating idle time. In terms of contradictory goals such as individualization of customer requirements, which is reflected in the high variability of production / products and minimalization of the production time and its fluency, it is necessary to pay increased attention to the changeover process. The problem related to the changeover process can be solved in two ways: by reducing the number of changeovers (reducing production variability and achieving dissatisfaction with individual customer requirements) or by shortening the changeover time (while maintaining production variability and ability to satisfy a wide range of individual customer r...

In today's constantly evolving and innovating world, competition is also growing. Industries are therefore trying to be as efficient as possible by optimizing their processes and reducing waste. Since customers' demands needs to fulfilled without keeping them waiting, industries produce goods in small batches which increases the changeover time or setup time. Single Minute Exchange of Die (SMED), a Lean Manufacturing tool, is a concept used for reducing setup time and thus, reducing waste and increasing productivity. In this paper, the discussion brings light to the SMED technique applied to an Auto ancillary manufacturing company, which, manufacturers shock absorbers. The main objective is to reduce waste, viz., time wasting, by applying the SMED technique. The result should give us setup time in single digits, i.e. less than 10 minutes; thus reducing the cycle time of the process. The basic task is to identify the internal activities and convert them to external activities.