4.6 Article

Improvement of Assembly Manufacturing Process through Value Stream Mapping and Ranked Positional Weight: An Empirical Evidence from the Defense Industry

期刊

PROCESSES
卷 11, 期 5, 页码 -

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MDPI
DOI: 10.3390/pr11051334

关键词

assembly process; line balancing; lean manufacturing; value stream mapping; ranked positional weight; defense industry

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This study aims to improve the assembly manufacturing process by combining value stream mapping (VSM) and ranked positional weight (RPW) to solve workload imbalances. An empirical study was conducted in a defense manufacturing firm located in Indonesia, focusing on 155 components and 56 tasks distributed among 43 assembly workstations in one weapon product. The results showed a significant reduction in total cycle time and improvements in assembly line balance. The application of VSM and RPW in the defense industry context provides valuable insights for other organizations and contributes to the advancement of literature in the field.
This study aims to improve the assembly manufacturing process to solve the workload imbalances by combining value stream mapping (VSM) and ranked positional weight (RPW). An empirical study was conducted in a defense manufacturing firm located in Indonesia. The study specifically focused on 155 components and 56 tasks distributed among 43 assembly workstations in one weapon product. The results of the analysis showed a significant reduction in the total cycle time, from 5121 s (85.35 min) to 3620 s (60.33 min), or a decrease of 29%. Additionally, the study found improvements in the balance of the assembly line as measured by balance delay, line efficiency, and smoothness index performance indicators. The application of VSM and RPW in this study is unique in the context of the defense industry, as it provides empirical analysis on cycle time and assembly line balance, which is rarely studied. The results of this study contribute to the advancement of literature in the field and provide valuable insights for other organizations in the defense industry and other manufacturing industries. By improving the efficiency and balance of the weapon assembly line, this study has the potential to increase productivity and reduce waste.

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