Loading...
4 results
Search Results
Now showing 1 - 4 of 4
- Quality and safety continuous improvement through lean toolsPublication . Santos, Gilberto; Sá, José Carlos; Oliveira, J.; Ramos, Delfina; Ferreira, C.The purpose of this chapter is to suggest the use of several lean tools that can be used, indicating the improvements that can be obtained with each of the recommended tools. The main objective is to be a contribution to the organizations, showing how they can detect the wastes in the productive flow through VSM, and at the same time to improve the quality of products through lean tools. The method presented was a case study. The various lean tools were also collected and described. This chapter intends to show several lean tools that can be applied in different situations, as well as, the wastes that each can eliminate and the benefits that are obtained from each one. Throughout the production process, with the support of Value Stream Mapping (VSM), it was possible to detect several wastes. A case study is presented as results from a work carried out in a company that is dedicated to the production of mechanical equipment. This work can be a guide to support organizations that wish to start their lean road. Smart value creation remains today dependent on the maturity of how lean management tools are applied. Lean, innovative technologies, critical knowledge, talent and big data need other dimensions to be sustainable. Quality and safety continuous improvement through lean tools, as well as, Industry 4.0 assumes a critical pillar for the new journey toward the future of our organizations.
- Combining lean and green practices to achieve a superior performance: The contribution for a sustainable development and competitiveness—An empirical study on the Portuguese contextPublication . Teixeira, Pedro; Coelho, Arnaldo; Fontoura, Pedro; Sá, José Carlos; Silva, Francisco J. G.; Santos, Gilberto; Pinto Ferreira, LuísThis research assesses the lean and green (LG) practices' impact on the competitive advantage (CA) of organizations, through sustainable performance, considering lean maturity as the moderator. A structured questionnaire was used to collect data from a cross-sectional sample of 261 companies operating in Portugal. Hypotheses are tested through structural equation modeling and multigroup analysis to examine the lean maturity moderating role. Results demonstrate a positive impact of LG practices on sustainable development and that their three dimensions of CA, with lean maturity boosting most relationships. This research highlights the impact of LG practices on organization's competitiveness and helps them underpin the importance these practices when comes to enhance their sustainable performance and their CA with help of environmental policy and also stakeholder engagement. Future studies should address these relationships upon a specific dimension, namely the correlation between environmental performance and CA, as it was not dealt in this study.
- Analysis and improvement in the Electrical Discharge Machining process used on the manufacturing of moulds for plastics injection mouldingPublication . Costa, A; Pinto Ferreira, Luís; Silva, F. J. G.; Sá, José Carlos; Pereira, Teresa; Ávila, PauloDue to increasing competitiveness in the industry, companies will invariably adopt strategies to ensure that their employees continuously eliminate waste and create more value. This concept was applied at a company that designs, develops, and manufactures steel moulds for the injection of thermoplastics, with the purpose of implementing Lean thinking in the production sector, thus achieving the following objectives: organization of production; preparation of documents to support production, and standardization of graphite stock. Regarding the application of the 5S tool, an improvement in worker safety, and in cleaning was observed, which also led to a reduction in the time wasted when locating tools. Through the implementation of 5S auditing, enabling to verify an overall improvement, from a rating of 35% in the first audit to 85% in the subsequent audit. The tools implemented allowed for improvements in communication between sectors, leading to increased productivity and productive autonomy. Finally, graphite stock was standardized by means of Kanban.
- Safety efficiency value stream mapping (SEVSM) - A new tool to support the implementation of Lean SafetyPublication . Marques, J P; Sá, José Carlos; Silva, F. J. G.; Pereira, Maria Teresa Ribeiro; Pinto Ferreira, Luís; Santos, GOccupational health and safety constitutes a topic of great importance in organizations nowadays, given the social and financial implications that arise. In addition to these problems, the manufacturing industry is greatly responsible for the number of accidents at work worldwide. In parallel, organizations focus on improving processes and eradicating waste from production flows. Therefore, there is a need to develop tools which are able to combine these two factors. Metalworking industry suffers of safety problems usually due to the great weight of the parts involved, as well as the processes used. The Safety Efficiency Value Stream Mapping (SEVSM) tool was developed to address these issues with the purpose of facilitating the identification of the risk level at each workstation, which is determined through risk assessment, as well as by verifying the type of risk which causes the security breach, and then indicating the most appropriate Lean tool to be applied for risk resolution. Besides these, it is also possible to obtain a diagnosis of the production flow, enabling an analysis of the most significant production indicators. The results obtained pointed to a 38% reduction in the risk level associated to job preparation activities through the introduction of Total Productive Maintenance, as well as a 31.8% reduction in compressor assembly process time, and 49.3% in the risk level related to the latter through Standard Work.