The key to the functioning of enterprises in today's market is the concept of flexibility, which is mainly associated with adapting to very dynamically changing customer requirements. The basis for ...this approach is, among others, the realisation of serial production, products created for the customer's order in the quantity and time defined in orders. The LEAN Managemnt and LEAN production approach is a solution dedicated to meeting market assumptions. The LEAN concept, which both in the organization of production and management is focused on dynamic response to changes in the environment. The term LEAN represents numerous improvements to the organization, tools and techniques used to reduce and eliminate individual processes (or parts thereof) that are unnecessary activities. The key to analysing entire processes and defining unnecessary activities is thorough observation and selection of dedicated solutions. In the set of LEAN tools, you can find a lot of possibilities, from organization of a workstation itself, to a thorough quantitative analysis of times and process sequences, from simple facilities to complex technological solutions. The article presents the results of the assembly process analysis, indicates the point of product differentiation (marking for the client) and presents the map of organizational and preparatory activities for this process. The presented results are part of the activities within organization of the LEAN approach, currently having priority for the Research entity organisation improvement team.
Nowadays, companies are looking for newer and newer methods in order to increase their efficiency and effectiveness. Many of them decide to implement Lean Manufacturing philosophy because the ...benefits of the introduction of this philosophy apply not only to the industrial but also to the financial and commercial areas. These changes can increase the efficiency of production realized with small investments, improve product quality, reduce inventory as well as material consumption. This philosophy can shorten the delivery time and product quality what leads to the increased customer satisfaction and enhances the competitiveness of enterprises. One of the tools of Lean Manufacturing is the Single Minute Exchange of Die (SMED) method. The implementation of this method reduces machines changeover time, which is a waste. This method makes it possible to implement a continuous flow of the product without long waiting times and, most importantly, without any performance loss. The results of the implementation of the SMED method on several different production work stands are presented in this work. The selected stands differ in type (conventional, semi-automatic, automatic) and their role in a production process (bottlenecks, support process). The work, by means of indicative evaluation, assesses the ability to increase the efficiency of machines for the analysed production work stands. The work indicates the effects a company may expect having decided to implement the SMED method for the production areas that are a part of either the main or support processes.
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 requirements). The Single-Minute Exchange of Die - SMED method is used to shorten the time duration of the changeover process and eliminate waste in the given process. The aim of the paper is to apply the SMED method in vibration welder changeover process in a selected industrial enterprise and thus achieve a shortening of the changeover process. The SMED method was applied in the enterprise which belongs to the group of small and medium-sized enterprises. The research method was indirect observation via video recording and time snap. Various types of waste were identified based on the analysis, and subsequently eliminated by proposed rationalization measures. Finally, the time duration of the changeover process before the analysis and after the implementation of rationalization measures was compared.
Currently, almost every household in Indonesia has a motorbike, this is certainly a business opportunity. One of the most important components of a motorbike is the tire which functions to reduce ...vibration and protect the wheel from wear and damage. The business environment operating in the automotive sector needs to create high-quality goods or services to increase customer satisfaction. Costs in the company's productive processes must be reduced to achieve effectiveness. The object of this research is the XYZ Tire Workshop located in East Jakarta. In a day, the XYZ Ban workshop can provide up to 25 to 30 motorbike tire changes. Meanwhile, the workforce on duty is only 2 mechanics and the quantity of tools is limited. This causes delays and makes customers have to wait quite a long time before their motorbike can be worked on. The Single Minute Exchange of Dies (SMED) method which is included in lean tools is the key to reducing set-up process time. In general, SMED aims to standardize and simplify operating processes. The SMED technique is used as an element in Total Productivity Maintenance (TPM) in various studies to achieve lean manufacturing. Based on research data, the set-up time before implementing SMED was 177 seconds. After implementing the SMED method, the setup time was 126 seconds. This shows that the SMED method can reduce set-up time by 51 seconds.
Die casting process uses high productive level machines. Machine capacity utilization is a key goal in achieving minimum time consumption. Changeover procedure during die casting process is ...recognized as possible area for reducing time consumption. The SMED method has been improved by additional procedures simultaneously applying the 5S method. Their contribution is evident in recognition of internal and external activities, particularly while transferring internal activities into external ones in as many numbers as possible, by minimizing at the same moment the internal ones. The validity of the method and procedures are verified by an example application of die casting foundry for casting automobile parts. Significant time savings have been achieved with minimum investment.
Under the impact of transition to the new post-industrial society, massproduction recently faced the most numerous difficulties. They are caused by turbulences in theexternal environment in which ...companies operate, manifested in particular by enhancing thedynamism of markets and by deep changes in the structure of consumers’ demands. In thiscontext, specialized literature records the concerns for increasing the efficiency and flexibilityof products, elements involving radical changes of management and manufacturingtechnologies methods. Given these issues, the paper approaches two separate ways to improvethe management of serial production: increasing economic efficiency by optimizing the size ofbatches and flexible production systems by implementing techniques to reduce the change-overtime.
Implementation of SMED method in wood processing Vukicevic, M.R., Univerzitet u Beogradu, Beograd (Serbia). Sumarski fakultet; Vojinovic, S., Univerzitet u Beogradu, Beograd (Serbia). Sumarski fakultet; Mladenovic, B., Univerzitet u Beogradu, Beograd (Serbia). Sumarski fakultet
Glasnik Sumarskog fakulteta - Univerzitet u Beogradu (1987),
(2007), 2007-00-00, 2007-01-01, Volume:
2007, Issue:
96
Journal Article
Peer reviewed
Open access
The solution problems in production is mainly tackled by the management based on the hardware component, i.e. by the introduction of work centres of recent generation. In this way, it ensures the ...continuity of quality, reduced consumption of energy, humanization of work, etc. However, the interaction between technical-technological and organisational-economic aspects of production is neglected. This means that the new-generation equipment requires a modern approach to planning, organisation, and management of production, as well as to economy of production. Consequently, it is very important to ensure the implementation of modern organisational methods in wood processing. This paper deals with the problem of implementation of SMED method (SMED - Single Digit Minute Exchange of Die), in the aim of rationalisation of set-up-end-up operations. It is known that in the conditions of discontinuous production, set-up-end-up time is a significant limiting factor in the increase of flexibility of production systems.
Proces tlačnog lijevanja složenih dijelova u mnogim granama industrije danas koristi strojeve visoke produktivnosti. Oslobađanje kapaciteta strojeva je glavni cilj u postizanju minimuma utroška ...vremena izrade. Postupak izmjena alata kod procesa tlačnog lijevanja područje je moguće vremenske uštede. Primjenjena je i dodatnim koracima unaprijeđena SMED metoda, uz istovremenu primjenu 5S procedura. Doprinos se očituje u prepoznavanju unutarnjih i vanjskih aktivnosti, pretvaranju što većeg broja unutarnjih u vanjske, uz istovremenu minimalizaciju unutarnjih. Metoda i procedura su provjerene na primjeru ljevaonice automobilskih dijelova, a postignute su značajne vremenske uštede uz minimalne investicije.
Under the impact of transition to the new post-industrial society, mass production recently faced the most numerous difficulties. They are caused by turbulences in the external environment in which ...companies operate, manifested in particular by enhancing the dynamism of markets and by deep changes in the structure of consumers’ demands. In this context, specialized literature records the concerns for increasing the efficiency and flexibility of products, elements involving radical changes of management and manufacturing technologies methods. Given these issues, the paper approaches two separate ways to improve the management of serial production: increasing economic efficiency by optimizing the size of batches and flexible production systems by implementing techniques to reduce the change-over time.
PDF
