Browsing by Author "Salmio, Ilmari"

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LEAN-tuotantomallin soveltaminen kokoonpanotuotantoon
(2011) Salmio, Ilmari
School of Engineering | Master's thesis
In this study, the LEAN production model, and adapting of its possibilities, is studied especially from the point of view of the assembly production. The target company is specialised on ventilation machines and belongs to the Ensto Group. The study is part of Ensto's operative development program Ensto Operational Excellence, which aims to standardize all production units according to the best practice. The study has been limited to the most important -in terms of revenues -production family, its processes and related inbound logistics. The purpose of the study is to start the implementation process of best practice, which is based on current state analysis that has been done in the study, on the internal standard of Ensto and on the test arrangements performed within the study, to which the experiment of the phased work station, the application of Kanban pull system and the kitting of insulation parts belonged. In the literature part of this study production planning and control, the LEAN production model's contents and design of the assembly production are gone through. Based on current state analysis, which describe production's performance and operations, an implementation plan and layout proposals are presented. A video analysis and spread sheet calculations were used as main research methods. Information that was received from the ERP system was used as a source of the charting of the current state. Also, interviews of the staff involved in the project were used. The goal of this study was to improve throughput time by 30% for the chosen production family. Due to time restraints of this research, the set goal of a 30% improvement wasn't achieved. Despite this, improvement potential was realized and plans to implement such improvement were outlined. Furthermore, the phased work station experiment was proven to be over 15 % more productive than an earlier method. Also, the application of Kanban pull system between production processes was found to be better solution and the negotiations of isolation kits deliveries were begun. Based on obtained results it is recommended that the development project is continued to include the whole factory. The outlined proposal for the implementation plan was divided into easy, medium length and long-term phases of development. Finishing the 5S project, developing the inbound logistics and measuring the production performance were listed as easy development targets. The developing of production control, assembly process and supplier co-operation were listed as medium length targets. Finally, layout changes and simplification of product construction were listed as long term development targets. For the long-term development process, it is important to take into account that the direction is greatly influenced by the chosen future state and operative performance indicators, both of which are dependent on the Ensto's development program and standard.
SPC - implementoinnin avainkohdat
(2008) Salmio, Ilmari
Insinööritieteiden ja arkkitehtuurin tiedekunta | Bachelor's thesis