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| dc.contributor.author | Aklessia, Tassew | |
| dc.date.accessioned | 2022-11-29T07:36:55Z | |
| dc.date.available | 2022-11-29T07:36:55Z | |
| dc.date.issued | 2022-02 | |
| dc.identifier.uri | http://ir.bdu.edu.et/handle/123456789/14586 | |
| dc.description.abstract | Waste (non-value adding activities) reduction has become the focus point of every industrynowadays and mentioning this brings up the ultimate solution, which is lean manufacturingsystem.Thegoalofthispaperistoincreaseproductivityandproductionefficiency byimplementation of leantools& techniques. Descriptive statistical analysis was usedwithmixed qualitative and quantitative approaches. For this accomplishment, the required primarydata were collected using observation, interviews and questioners by selecting 50 samples(operators) using both random sampling method and stratified sampling. The analysis wasdone by firstly mapping the existing stage of manufacturing and identifying the non-valueadding activities the selected product family passes through, and secondly by using lean toolssuch as value stream mapping, line balancing, total protective maintenance, and first-in first-out to reduce thewastesand for production line improvement.The biggest improvementareas like excessive lead time, waiting time, cycle time, and non-value adding time wereidentified. With these a new value stream mapping was developed. After the implementationoftheleantoolsandusingfuturestatevaluestreammappingmethod,thefuturestateprodu ctionlineshowedaresultof34.7%reductioninproductionleadtime,29.02%reduction in waiting time, 39.4% reduction in cycle time, 29.01% reduction in non-valueadding activities. It was also witnessed that line balancing and process cycle efficiencies wereincreased by 10.2 & 9.11% respectively. This study concludes that, to minimize productionwaste of such production, lean manufacturing has answered the research question and showedtheproductivityimprovementofthe company. Key words: lean manufacturing, lean tools, waste, value stream mapping, line balancing,productivity. | en_US |
| dc.language.iso | en_US | en_US |
| dc.subject | MECHANICAL AND INDUSTRIAL ENGINEERING | en_US |
| dc.title | Lean Manufacturing Implementation for Productivity and Efficiency Enhancement of Foundry Factory; a Case Study at Akaki Basic Metals Industry. | en_US |
| dc.type | Thesis | en_US |
