Topic
Lean Six Sigma
About: Lean Six Sigma is a research topic. Over the lifetime, 1919 publications have been published within this topic receiving 29142 citations.
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01 Oct 2015
TL;DR: In this paper, the Lean Six Sigma methodology was applied in a project by senior students of the Industrial Engineering and Systems academic program at University level, in a company located in the metropolitan area of Monterrey, Mexico.
Abstract: the Lean Six Sigma methodology was applied in a project by senior students of the Industrial Engineering and Systems academic program at University level, in a company located in the metropolitan area of Monterrey, Mexico. The company manufactures equipment for the control of pressure in the extraction of gas and hydrocarbons; they clients are national and international companies. Specifically, the plant produces heads comprising pressure control equipment along with the valves. The current problem that the company is facing is the lack of capacity to meet an increasing demand of finished products; for this reason, the objective of the project is to increase by 25% the production capacity, reducing the lead time for production of twenty to two days, and accelerating the Tack Time from 165 to 132 minutes. The project begins with a thorough diagnosis, to measure and identify areas for improvement; the collection of data and its analysis generated five improvement proposals, which after implemented reaches stablished goals.
1 citations
09 Dec 2008
TL;DR: In this article, a case study in four companies with observations and face-to-face interviews has been conducted to evaluate the applicability and properties of robustness and resilience in the supply chain.
Abstract: Purpose – This paper discusses how Lean Six Sigma companies can work to create resilience and robustness in the supply chain. Methodology/approach – A case study in four companies with observations and face-toface interviews has been conducted. Findings – Quality tools and methods are very effective to make the supply chain processes robust and less risky. It has been indicated that Lean Six Sigma companies are robust and have some degree of resilience. It is also important to re-invest in activities that make the entire supply chain resilient. The savings generated from the Lean Six Sigma might be re-invested in risk prevention and mitigation solutions as to create redundancies in the supply chain. Sales and operations plans may be more structured and well workedout in order to be resilient. Different professions and staff from different companies could be represented in the same training “wave” which can build bridges between departments, factories and, also, between suppliers and customers. In order to fulfil the highest quality at the lowest total cost, the right quality and resilience must be designed from the beginning. Integrating Lean Six Sigma with suppliers and customers in designing products and processes together in order to strive for resilience will be the next challenge. Originality/value – This paper provides guidance to organisations regarding the applicability and properties of robustness and resilience in the supply chain. The paper will also serve as a basis for further research in this area, focusing on practical experiences of ways to make the supply chain resilient and robust.
1 citations
29 Jul 2016
TL;DR: The results reveal that machine and material handling scheduling rule combinations together with the maintenance policy in use may affect significantly the performance of a production system and show that there is an acceptable level of machine breakdown for which the system performance is similar to a failure free system.
Abstract: Uncertainty in production systems may arise from different sources including machines, parts, tools or material handling failures. For this reason the need for the production system to be flexible enough to respond to unanticipated breakdowns or failures become highly recognized. This paper considers a flexible manufacturing system (FMS) and analyzes the effect of a combination of various design and operational parameters on the overall system performance under different machine failures/breakdowns patterns. Three performance criteria including throughput rate (TR), mean flow time (MFT), work-in-process (WIP), are analyzed for various machine and AGV scheduling rule combinations over a range of AGV fleet size. These key Lean indicators are selected because they are tenants of Littleâs Law considered as the backbone equation in Lean Six Sigma methodologies as it advocates the reduction of waste, variability and work in process around the process in order to reduce the cycle time while increasing quality. Comparison is made with the performance profile of a system operating in a failure-free mode. The results reveal that machine and material handling scheduling rule combinations together with the maintenance policy in use may affect significantly the performance of a production system. The results also show that there is an acceptable level of machine breakdown (reliability) for which the system performance is similar to a failure free system.
1 citations
TL;DR: Confronted with the need to significantly raise the productivity of remotely located chemistry CROs Pfizer embraced a commitment to continuous improvement which leveraged the tools from both Lean Six Sigma and queue management theory to deliver positive measurable outcomes.
1 citations