Value stream mapping – Panacea for lead time reduction in ferrite core industry

Autor: Dalgobind Mahto, Abhilash Pathania, Bhaskar Goel, Kuldeep Rojhe, Raj Kumar, S. P. Aggarwal
Rok vydání: 2021
Předmět:
Zdroj: Materials Today: Proceedings. 46:2456-2461
ISSN: 2214-7853
DOI: 10.1016/j.matpr.2021.01.362
Popis: The economy of any nation depends upon small-medium enterprises (SMEs), which are the largest contributor to the manufacturing business. Unfortunately, most of the SMEs are running sick because of operational inefficiencies, poor management, unskilled labor, over inventory, high rejection rate, or impaired machine parts. Value Stream Mapping (VSM) as one of the tools of lean manufacturing is accepted by most of the industries to remove non-value-added activities. This paper is a case study of an XXX Ferrites core manufacturing industry facing a problem of rejection of about 9% daily in the domain of large size ferrite cores. Selection of high rejection rate of large size Product No. UU9330 soft ferrite core emerged as a focus for the study. The researchers drew the current state map with detailed information, and the map was studied thoroughly for observing the causes of rejection. We drew the future state map after incorporating the learnings from the prevailing scenario and lean methodology. VSM implementation revealed a decrease in the rejection rate from 9% to 2%. The net gain observed in synchronization ratio and delivery performance was 7% and 25% respectively. The lead time also reduced from 10 days to 9 days after the successful lean implementation.
Databáze: OpenAIRE
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