Production lead time improvement through lean manufacturing

Sisay Geremew Gebeyehu · Muluken Abebe · Amdework Gochel

45 citations0/0 files storedCogent Engineering

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Quality and Supply Management Management and Optimization Techniques Digital Transformation in Industry

Abstract

Lean manufacturing (LM) practices and tools have played vital role in several manufacturing industries to enhance the competitive edge in in the global market. The purpose of this paper is to use the lean principles, practice and tools in Hibret Manufacturing & Machine Building Industries (HMMBI) in Ethiopia. The existence of high production lead time is getting the basic problem for HMBI that is why this research gives more attention. The study aims to improve the production lead time by minimizing non-value adding activities associated with several resources in the process. Both qualitative and quantitative data collection methods are used. The process time and floor layout are studied and mapped using Value Stream Mapping, and Spaghetti Diagram to identify wastes. The result shows that production lead time, work in process (WIP), non-value adding time (waiting time) and total distance traveled are reduced by 23.66%, 8.6%, 37.74%, 61.2% respectively. Finally, the process cycle efficiency is improved by 25.59%. The study is found significant for Hibret Manufacturing & Machine Building Industries (HMMBI) and for similar manufacturing industries.

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References

1991The Machine That Changed the World 2006Analyzing the benefits of lean manufacturing and value stream mapping via simulation: A process sector case study 2013A literature review of lean manufacturing 2014Criteria for a lean organisation: development of a lean assessment tool 2014Application of Value Stream Mapping for Reduction of Cycle Time in a Machining Process 2015Lean Thinking: An Overview

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2024Lean waste prioritisation and reduction in the apparel industry: application of waste assessment model and value stream mapping 2023Improvement of Manufacturing Process Based on Value Stream Mapping: A Case Study 2023Lean, six sigma and sustainability case studies on supply chain management: a systematic literature review

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